diff options
Diffstat (limited to 'contrib/libstdc++/include')
| -rw-r--r-- | contrib/libstdc++/include/bits/fpos.h | 127 | ||||
| -rw-r--r-- | contrib/libstdc++/include/bits/pthread_allocimpl.h | 525 | ||||
| -rw-r--r-- | contrib/libstdc++/include/bits/stl_alloc.h | 974 | ||||
| -rw-r--r-- | contrib/libstdc++/include/bits/stl_pthread_alloc.h | 60 | ||||
| -rw-r--r-- | contrib/libstdc++/include/bits/valarray_meta.h | 1147 | ||||
| -rw-r--r-- | contrib/libstdc++/include/ext/stl_hash_fun.h | 126 | ||||
| -rw-r--r-- | contrib/libstdc++/include/ext/stl_hashtable.h | 996 | ||||
| -rw-r--r-- | contrib/libstdc++/include/ext/stl_rope.h | 2503 |
8 files changed, 0 insertions, 6458 deletions
diff --git a/contrib/libstdc++/include/bits/fpos.h b/contrib/libstdc++/include/bits/fpos.h deleted file mode 100644 index 5432527..0000000 --- a/contrib/libstdc++/include/bits/fpos.h +++ /dev/null @@ -1,127 +0,0 @@ -// File position object and stream types - -// Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. -// -// This file is part of the GNU ISO C++ Library. This library is free -// software; you can redistribute it and/or modify it under the -// terms of the GNU General Public License as published by the -// Free Software Foundation; either version 2, or (at your option) -// any later version. - -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. - -// You should have received a copy of the GNU General Public License along -// with this library; see the file COPYING. If not, write to the Free -// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, -// USA. - -// As a special exception, you may use this file as part of a free software -// library without restriction. Specifically, if other files instantiate -// templates or use macros or inline functions from this file, or you compile -// this file and link it with other files to produce an executable, this -// file does not by itself cause the resulting executable to be covered by -// the GNU General Public License. This exception does not however -// invalidate any other reasons why the executable file might be covered by -// the GNU General Public License. - -// -// ISO C++ 14882: 27 Input/output library -// - -/** @file fpos.h - * This is an internal header file, included by other library headers. - * You should not attempt to use it directly. - */ - -#ifndef _CPP_BITS_FPOS_H -#define _CPP_BITS_FPOS_H 1 - -#pragma GCC system_header - -#include <bits/c++io.h> -#include <cwchar> // For mbstate_t. - -namespace std -{ - // 27.4.1 Types - - // [27.4.3] template class fpos - /** - * @doctodo - */ - template<typename _StateT> - class fpos - { - public: - // Types: - typedef _StateT __state_type; - - private: - streamoff _M_off; - __state_type _M_st; - - public: - __state_type - state() const { return _M_st; } - - void - state(__state_type __st) { _M_st = __st; } - - // NB: The standard defines only the implicit copy ctor and the - // previous two members. The rest is a "conforming extension". - fpos(): _M_off(streamoff()), _M_st(__state_type()) { } - - fpos(streamoff __off, __state_type __st = __state_type()) - : _M_off(__off), _M_st(__st) { } - - operator streamoff() const { return _M_off; } - - fpos& - operator+=(streamoff __off) { _M_off += __off; return *this; } - - fpos& - operator-=(streamoff __off) { _M_off -= __off; return *this; } - - fpos - operator+(streamoff __off) - { - fpos __t(*this); - __t += __off; - return __t; - } - - fpos - operator-(streamoff __off) - { - fpos __t(*this); - __t -= __off; - return __t; - } - - bool - operator==(const fpos& __pos) const - { return _M_off == __pos._M_off; } - - bool - operator!=(const fpos& __pos) const - { return _M_off != __pos._M_off; } - - streamoff - _M_position() const { return _M_off; } - - void - _M_position(streamoff __off) { _M_off = __off; } - }; - - /// 27.2, paragraph 10 about fpos/char_traits circularity - typedef fpos<mbstate_t> streampos; -# ifdef _GLIBCPP_USE_WCHAR_T - /// 27.2, paragraph 10 about fpos/char_traits circularity - typedef fpos<mbstate_t> wstreampos; -# endif -} // namespace std - -#endif diff --git a/contrib/libstdc++/include/bits/pthread_allocimpl.h b/contrib/libstdc++/include/bits/pthread_allocimpl.h deleted file mode 100644 index 050b206..0000000 --- a/contrib/libstdc++/include/bits/pthread_allocimpl.h +++ /dev/null @@ -1,525 +0,0 @@ -// POSIX thread-related memory allocation -*- C++ -*- - -// Copyright (C) 2001 Free Software Foundation, Inc. -// -// This file is part of the GNU ISO C++ Library. This library is free -// software; you can redistribute it and/or modify it under the -// terms of the GNU General Public License as published by the -// Free Software Foundation; either version 2, or (at your option) -// any later version. - -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. - -// You should have received a copy of the GNU General Public License along -// with this library; see the file COPYING. If not, write to the Free -// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, -// USA. - -// As a special exception, you may use this file as part of a free software -// library without restriction. Specifically, if other files instantiate -// templates or use macros or inline functions from this file, or you compile -// this file and link it with other files to produce an executable, this -// file does not by itself cause the resulting executable to be covered by -// the GNU General Public License. This exception does not however -// invalidate any other reasons why the executable file might be covered by -// the GNU General Public License. - -/* - * Copyright (c) 1996 - * Silicon Graphics Computer Systems, Inc. - * - * Permission to use, copy, modify, distribute and sell this software - * and its documentation for any purpose is hereby granted without fee, - * provided that the above copyright notice appear in all copies and - * that both that copyright notice and this permission notice appear - * in supporting documentation. Silicon Graphics makes no - * representations about the suitability of this software for any - * purpose. It is provided "as is" without express or implied warranty. - */ - -/** @file pthread_allocimpl.h - * This is an internal header file, included by other library headers. - * You should not attempt to use it directly. - */ - -#ifndef _CPP_BITS_PTHREAD_ALLOCIMPL_H -#define _CPP_BITS_PTHREAD_ALLOCIMPL_H 1 - -// Pthread-specific node allocator. -// This is similar to the default allocator, except that free-list -// information is kept separately for each thread, avoiding locking. -// This should be reasonably fast even in the presence of threads. -// The down side is that storage may not be well-utilized. -// It is not an error to allocate memory in thread A and deallocate -// it in thread B. But this effectively transfers ownership of the memory, -// so that it can only be reallocated by thread B. Thus this can effectively -// result in a storage leak if it's done on a regular basis. -// It can also result in frequent sharing of -// cache lines among processors, with potentially serious performance -// consequences. - -#include <bits/c++config.h> -#include <cerrno> -#include <bits/stl_alloc.h> -#ifndef __RESTRICT -# define __RESTRICT -#endif - -#include <new> - -namespace std -{ - -#define __STL_DATA_ALIGNMENT 8 - -union _Pthread_alloc_obj { - union _Pthread_alloc_obj * __free_list_link; - char __client_data[__STL_DATA_ALIGNMENT]; /* The client sees this. */ -}; - -// Pthread allocators don't appear to the client to have meaningful -// instances. We do in fact need to associate some state with each -// thread. That state is represented by -// _Pthread_alloc_per_thread_state<_Max_size>. - -template<size_t _Max_size> -struct _Pthread_alloc_per_thread_state { - typedef _Pthread_alloc_obj __obj; - enum { _S_NFREELISTS = _Max_size/__STL_DATA_ALIGNMENT }; - _Pthread_alloc_obj* volatile __free_list[_S_NFREELISTS]; - _Pthread_alloc_per_thread_state<_Max_size> * __next; - // Free list link for list of available per thread structures. - // When one of these becomes available for reuse due to thread - // termination, any objects in its free list remain associated - // with it. The whole structure may then be used by a newly - // created thread. - _Pthread_alloc_per_thread_state() : __next(0) - { - memset((void *)__free_list, 0, (size_t) _S_NFREELISTS * sizeof(__obj *)); - } - // Returns an object of size __n, and possibly adds to size n free list. - void *_M_refill(size_t __n); -}; - -// Pthread-specific allocator. -// The argument specifies the largest object size allocated from per-thread -// free lists. Larger objects are allocated using malloc_alloc. -// Max_size must be a power of 2. -template <size_t _Max_size = 128> -class _Pthread_alloc_template { - -public: // but only for internal use: - - typedef _Pthread_alloc_obj __obj; - - // Allocates a chunk for nobjs of size size. nobjs may be reduced - // if it is inconvenient to allocate the requested number. - static char *_S_chunk_alloc(size_t __size, int &__nobjs); - - enum {_S_ALIGN = __STL_DATA_ALIGNMENT}; - - static size_t _S_round_up(size_t __bytes) { - return (((__bytes) + (int) _S_ALIGN-1) & ~((int) _S_ALIGN - 1)); - } - static size_t _S_freelist_index(size_t __bytes) { - return (((__bytes) + (int) _S_ALIGN-1)/(int)_S_ALIGN - 1); - } - -private: - // Chunk allocation state. And other shared state. - // Protected by _S_chunk_allocator_lock. - static pthread_mutex_t _S_chunk_allocator_lock; - static char *_S_start_free; - static char *_S_end_free; - static size_t _S_heap_size; - static _Pthread_alloc_per_thread_state<_Max_size>* _S_free_per_thread_states; - static pthread_key_t _S_key; - static bool _S_key_initialized; - // Pthread key under which per thread state is stored. - // Allocator instances that are currently unclaimed by any thread. - static void _S_destructor(void *instance); - // Function to be called on thread exit to reclaim per thread - // state. - static _Pthread_alloc_per_thread_state<_Max_size> *_S_new_per_thread_state(); - // Return a recycled or new per thread state. - static _Pthread_alloc_per_thread_state<_Max_size> *_S_get_per_thread_state(); - // ensure that the current thread has an associated - // per thread state. - class _M_lock; - friend class _M_lock; - class _M_lock { - public: - _M_lock () { pthread_mutex_lock(&_S_chunk_allocator_lock); } - ~_M_lock () { pthread_mutex_unlock(&_S_chunk_allocator_lock); } - }; - -public: - - /* n must be > 0 */ - static void * allocate(size_t __n) - { - __obj * volatile * __my_free_list; - __obj * __RESTRICT __result; - _Pthread_alloc_per_thread_state<_Max_size>* __a; - - if (__n > _Max_size) { - return(malloc_alloc::allocate(__n)); - } - if (!_S_key_initialized || - !(__a = (_Pthread_alloc_per_thread_state<_Max_size>*) - pthread_getspecific(_S_key))) { - __a = _S_get_per_thread_state(); - } - __my_free_list = __a -> __free_list + _S_freelist_index(__n); - __result = *__my_free_list; - if (__result == 0) { - void *__r = __a -> _M_refill(_S_round_up(__n)); - return __r; - } - *__my_free_list = __result -> __free_list_link; - return (__result); - }; - - /* p may not be 0 */ - static void deallocate(void *__p, size_t __n) - { - __obj *__q = (__obj *)__p; - __obj * volatile * __my_free_list; - _Pthread_alloc_per_thread_state<_Max_size>* __a; - - if (__n > _Max_size) { - malloc_alloc::deallocate(__p, __n); - return; - } - if (!_S_key_initialized || - !(__a = (_Pthread_alloc_per_thread_state<_Max_size> *) - pthread_getspecific(_S_key))) { - __a = _S_get_per_thread_state(); - } - __my_free_list = __a->__free_list + _S_freelist_index(__n); - __q -> __free_list_link = *__my_free_list; - *__my_free_list = __q; - } - - static void * reallocate(void *__p, size_t __old_sz, size_t __new_sz); - -} ; - -typedef _Pthread_alloc_template<> pthread_alloc; - - -template <size_t _Max_size> -void _Pthread_alloc_template<_Max_size>::_S_destructor(void * __instance) -{ - _M_lock __lock_instance; // Need to acquire lock here. - _Pthread_alloc_per_thread_state<_Max_size>* __s = - (_Pthread_alloc_per_thread_state<_Max_size> *)__instance; - __s -> __next = _S_free_per_thread_states; - _S_free_per_thread_states = __s; -} - -template <size_t _Max_size> -_Pthread_alloc_per_thread_state<_Max_size> * -_Pthread_alloc_template<_Max_size>::_S_new_per_thread_state() -{ - /* lock already held here. */ - if (0 != _S_free_per_thread_states) { - _Pthread_alloc_per_thread_state<_Max_size> *__result = - _S_free_per_thread_states; - _S_free_per_thread_states = _S_free_per_thread_states -> __next; - return __result; - } else { - return new _Pthread_alloc_per_thread_state<_Max_size>; - } -} - -template <size_t _Max_size> -_Pthread_alloc_per_thread_state<_Max_size> * -_Pthread_alloc_template<_Max_size>::_S_get_per_thread_state() -{ - /*REFERENCED*/ - _M_lock __lock_instance; // Need to acquire lock here. - int __ret_code; - _Pthread_alloc_per_thread_state<_Max_size> * __result; - if (!_S_key_initialized) { - if (pthread_key_create(&_S_key, _S_destructor)) { - std::__throw_bad_alloc(); // defined in funcexcept.h - } - _S_key_initialized = true; - } - __result = _S_new_per_thread_state(); - __ret_code = pthread_setspecific(_S_key, __result); - if (__ret_code) { - if (__ret_code == ENOMEM) { - std::__throw_bad_alloc(); - } else { - // EINVAL - abort(); - } - } - return __result; -} - -/* We allocate memory in large chunks in order to avoid fragmenting */ -/* the malloc heap too much. */ -/* We assume that size is properly aligned. */ -template <size_t _Max_size> -char *_Pthread_alloc_template<_Max_size> -::_S_chunk_alloc(size_t __size, int &__nobjs) -{ - { - char * __result; - size_t __total_bytes; - size_t __bytes_left; - /*REFERENCED*/ - _M_lock __lock_instance; // Acquire lock for this routine - - __total_bytes = __size * __nobjs; - __bytes_left = _S_end_free - _S_start_free; - if (__bytes_left >= __total_bytes) { - __result = _S_start_free; - _S_start_free += __total_bytes; - return(__result); - } else if (__bytes_left >= __size) { - __nobjs = __bytes_left/__size; - __total_bytes = __size * __nobjs; - __result = _S_start_free; - _S_start_free += __total_bytes; - return(__result); - } else { - size_t __bytes_to_get = - 2 * __total_bytes + _S_round_up(_S_heap_size >> 4); - // Try to make use of the left-over piece. - if (__bytes_left > 0) { - _Pthread_alloc_per_thread_state<_Max_size>* __a = - (_Pthread_alloc_per_thread_state<_Max_size>*) - pthread_getspecific(_S_key); - __obj * volatile * __my_free_list = - __a->__free_list + _S_freelist_index(__bytes_left); - - ((__obj *)_S_start_free) -> __free_list_link = *__my_free_list; - *__my_free_list = (__obj *)_S_start_free; - } -# ifdef _SGI_SOURCE - // Try to get memory that's aligned on something like a - // cache line boundary, so as to avoid parceling out - // parts of the same line to different threads and thus - // possibly different processors. - { - const int __cache_line_size = 128; // probable upper bound - __bytes_to_get &= ~(__cache_line_size-1); - _S_start_free = (char *)memalign(__cache_line_size, __bytes_to_get); - if (0 == _S_start_free) { - _S_start_free = (char *)malloc_alloc::allocate(__bytes_to_get); - } - } -# else /* !SGI_SOURCE */ - _S_start_free = (char *)malloc_alloc::allocate(__bytes_to_get); -# endif - _S_heap_size += __bytes_to_get; - _S_end_free = _S_start_free + __bytes_to_get; - } - } - // lock is released here - return(_S_chunk_alloc(__size, __nobjs)); -} - - -/* Returns an object of size n, and optionally adds to size n free list.*/ -/* We assume that n is properly aligned. */ -/* We hold the allocation lock. */ -template <size_t _Max_size> -void *_Pthread_alloc_per_thread_state<_Max_size> -::_M_refill(size_t __n) -{ - int __nobjs = 128; - char * __chunk = - _Pthread_alloc_template<_Max_size>::_S_chunk_alloc(__n, __nobjs); - __obj * volatile * __my_free_list; - __obj * __result; - __obj * __current_obj, * __next_obj; - int __i; - - if (1 == __nobjs) { - return(__chunk); - } - __my_free_list = __free_list - + _Pthread_alloc_template<_Max_size>::_S_freelist_index(__n); - - /* Build free list in chunk */ - __result = (__obj *)__chunk; - *__my_free_list = __next_obj = (__obj *)(__chunk + __n); - for (__i = 1; ; __i++) { - __current_obj = __next_obj; - __next_obj = (__obj *)((char *)__next_obj + __n); - if (__nobjs - 1 == __i) { - __current_obj -> __free_list_link = 0; - break; - } else { - __current_obj -> __free_list_link = __next_obj; - } - } - return(__result); -} - -template <size_t _Max_size> -void *_Pthread_alloc_template<_Max_size> -::reallocate(void *__p, size_t __old_sz, size_t __new_sz) -{ - void * __result; - size_t __copy_sz; - - if (__old_sz > _Max_size - && __new_sz > _Max_size) { - return(realloc(__p, __new_sz)); - } - if (_S_round_up(__old_sz) == _S_round_up(__new_sz)) return(__p); - __result = allocate(__new_sz); - __copy_sz = __new_sz > __old_sz? __old_sz : __new_sz; - memcpy(__result, __p, __copy_sz); - deallocate(__p, __old_sz); - return(__result); -} - -template <size_t _Max_size> -_Pthread_alloc_per_thread_state<_Max_size> * -_Pthread_alloc_template<_Max_size>::_S_free_per_thread_states = 0; - -template <size_t _Max_size> -pthread_key_t _Pthread_alloc_template<_Max_size>::_S_key; - -template <size_t _Max_size> -bool _Pthread_alloc_template<_Max_size>::_S_key_initialized = false; - -template <size_t _Max_size> -pthread_mutex_t _Pthread_alloc_template<_Max_size>::_S_chunk_allocator_lock -= PTHREAD_MUTEX_INITIALIZER; - -template <size_t _Max_size> -char *_Pthread_alloc_template<_Max_size> -::_S_start_free = 0; - -template <size_t _Max_size> -char *_Pthread_alloc_template<_Max_size> -::_S_end_free = 0; - -template <size_t _Max_size> -size_t _Pthread_alloc_template<_Max_size> -::_S_heap_size = 0; - - -template <class _Tp> -class pthread_allocator { - typedef pthread_alloc _S_Alloc; // The underlying allocator. -public: - typedef size_t size_type; - typedef ptrdiff_t difference_type; - typedef _Tp* pointer; - typedef const _Tp* const_pointer; - typedef _Tp& reference; - typedef const _Tp& const_reference; - typedef _Tp value_type; - - template <class _NewType> struct rebind { - typedef pthread_allocator<_NewType> other; - }; - - pthread_allocator() throw() {} - pthread_allocator(const pthread_allocator& a) throw() {} - template <class _OtherType> - pthread_allocator(const pthread_allocator<_OtherType>&) - throw() {} - ~pthread_allocator() throw() {} - - pointer address(reference __x) const { return &__x; } - const_pointer address(const_reference __x) const { return &__x; } - - // __n is permitted to be 0. The C++ standard says nothing about what - // the return value is when __n == 0. - _Tp* allocate(size_type __n, const void* = 0) { - return __n != 0 ? static_cast<_Tp*>(_S_Alloc::allocate(__n * sizeof(_Tp))) - : 0; - } - - // p is not permitted to be a null pointer. - void deallocate(pointer __p, size_type __n) - { _S_Alloc::deallocate(__p, __n * sizeof(_Tp)); } - - size_type max_size() const throw() - { return size_t(-1) / sizeof(_Tp); } - - void construct(pointer __p, const _Tp& __val) { new(__p) _Tp(__val); } - void destroy(pointer _p) { _p->~_Tp(); } -}; - -template<> -class pthread_allocator<void> { -public: - typedef size_t size_type; - typedef ptrdiff_t difference_type; - typedef void* pointer; - typedef const void* const_pointer; - typedef void value_type; - - template <class _NewType> struct rebind { - typedef pthread_allocator<_NewType> other; - }; -}; - -template <size_t _Max_size> -inline bool operator==(const _Pthread_alloc_template<_Max_size>&, - const _Pthread_alloc_template<_Max_size>&) -{ - return true; -} - -template <class _T1, class _T2> -inline bool operator==(const pthread_allocator<_T1>&, - const pthread_allocator<_T2>& a2) -{ - return true; -} - -template <class _T1, class _T2> -inline bool operator!=(const pthread_allocator<_T1>&, - const pthread_allocator<_T2>&) -{ - return false; -} - -template <class _Tp, size_t _Max_size> -struct _Alloc_traits<_Tp, _Pthread_alloc_template<_Max_size> > -{ - static const bool _S_instanceless = true; - typedef simple_alloc<_Tp, _Pthread_alloc_template<_Max_size> > _Alloc_type; - typedef __allocator<_Tp, _Pthread_alloc_template<_Max_size> > - allocator_type; -}; - -template <class _Tp, class _Atype, size_t _Max> -struct _Alloc_traits<_Tp, __allocator<_Atype, _Pthread_alloc_template<_Max> > > -{ - static const bool _S_instanceless = true; - typedef simple_alloc<_Tp, _Pthread_alloc_template<_Max> > _Alloc_type; - typedef __allocator<_Tp, _Pthread_alloc_template<_Max> > allocator_type; -}; - -template <class _Tp, class _Atype> -struct _Alloc_traits<_Tp, pthread_allocator<_Atype> > -{ - static const bool _S_instanceless = true; - typedef simple_alloc<_Tp, _Pthread_alloc_template<> > _Alloc_type; - typedef pthread_allocator<_Tp> allocator_type; -}; - - -} // namespace std - -#endif /* _CPP_BITS_PTHREAD_ALLOCIMPL_H */ - -// Local Variables: -// mode:C++ -// End: diff --git a/contrib/libstdc++/include/bits/stl_alloc.h b/contrib/libstdc++/include/bits/stl_alloc.h deleted file mode 100644 index 9677c3e..0000000 --- a/contrib/libstdc++/include/bits/stl_alloc.h +++ /dev/null @@ -1,974 +0,0 @@ -// Allocators -*- C++ -*- - -// Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. -// -// This file is part of the GNU ISO C++ Library. This library is free -// software; you can redistribute it and/or modify it under the -// terms of the GNU General Public License as published by the -// Free Software Foundation; either version 2, or (at your option) -// any later version. - -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. - -// You should have received a copy of the GNU General Public License along -// with this library; see the file COPYING. If not, write to the Free -// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, -// USA. - -// As a special exception, you may use this file as part of a free software -// library without restriction. Specifically, if other files instantiate -// templates or use macros or inline functions from this file, or you compile -// this file and link it with other files to produce an executable, this -// file does not by itself cause the resulting executable to be covered by -// the GNU General Public License. This exception does not however -// invalidate any other reasons why the executable file might be covered by -// the GNU General Public License. - -/* - * Copyright (c) 1996-1997 - * Silicon Graphics Computer Systems, Inc. - * - * Permission to use, copy, modify, distribute and sell this software - * and its documentation for any purpose is hereby granted without fee, - * provided that the above copyright notice appear in all copies and - * that both that copyright notice and this permission notice appear - * in supporting documentation. Silicon Graphics makes no - * representations about the suitability of this software for any - * purpose. It is provided "as is" without express or implied warranty. - */ - -/** @file stl_alloc.h - * This is an internal header file, included by other library headers. - * You should not attempt to use it directly. - */ - -#ifndef __GLIBCPP_INTERNAL_ALLOC_H -#define __GLIBCPP_INTERNAL_ALLOC_H - -/** - * @defgroup Allocators Memory Allocators - * @if maint - * stl_alloc.h implements some node allocators. These are NOT the same as - * allocators in the C++ standard, nor in the original H-P STL. They do not - * encapsulate different pointer types; we assume that there is only one - * pointer type. The C++ standard allocators are intended to allocate - * individual objects, not pools or arenas. - * - * In this file allocators are of two different styles: "standard" and - * "SGI" (quotes included). "Standard" allocators conform to 20.4. "SGI" - * allocators differ in AT LEAST the following ways (add to this list as you - * discover them): - * - * - "Standard" allocate() takes two parameters (n_count,hint=0) but "SGI" - * allocate() takes one paramter (n_size). - * - Likewise, "standard" deallocate()'s argument is a count, but in "SGI" - * is a byte size. - * - max_size(), construct(), and destroy() are missing in "SGI" allocators. - * - reallocate(p,oldsz,newsz) is added in "SGI", and behaves as - * if p=realloc(p,newsz). - * - * "SGI" allocators may be wrapped in __allocator to convert the interface - * into a "standard" one. - * @endif - * - * @note The @c reallocate member functions have been deprecated for 3.2 - * and will be removed in 3.4. You must define @c _GLIBCPP_DEPRECATED - * to make this visible in 3.2; see c++config.h. - * - * The canonical description of these classes is in docs/html/ext/howto.html - * or online at http://gcc.gnu.org/onlinedocs/libstdc++/ext/howto.html#3 -*/ - -#include <cstddef> -#include <cstdlib> -#include <cstring> -#include <bits/functexcept.h> // For __throw_bad_alloc -#include <bits/stl_threads.h> - -#include <bits/atomicity.h> - -namespace std -{ - /** - * @if maint - * A new-based allocator, as required by the standard. Allocation and - * deallocation forward to global new and delete. "SGI" style, minus - * reallocate(). - * @endif - * (See @link Allocators allocators info @endlink for more.) - */ - class __new_alloc - { - public: - static void* - allocate(size_t __n) - { return ::operator new(__n); } - - static void - deallocate(void* __p, size_t) - { ::operator delete(__p); } - }; - - - /** - * @if maint - * A malloc-based allocator. Typically slower than the - * __default_alloc_template (below). Typically thread-safe and more - * storage efficient. The template argument is unused and is only present - * to permit multiple instantiations (but see __default_alloc_template - * for caveats). "SGI" style, plus __set_malloc_handler for OOM conditions. - * @endif - * (See @link Allocators allocators info @endlink for more.) - */ - template<int __inst> - class __malloc_alloc_template - { - private: - static void* _S_oom_malloc(size_t); - static void* _S_oom_realloc(void*, size_t); - static void (* __malloc_alloc_oom_handler)(); - - public: - static void* - allocate(size_t __n) - { - void* __result = malloc(__n); - if (__builtin_expect(__result == 0, 0)) - __result = _S_oom_malloc(__n); - return __result; - } - - static void - deallocate(void* __p, size_t /* __n */) - { free(__p); } - - static void* - reallocate(void* __p, size_t /* old_sz */, size_t __new_sz) - { - void* __result = realloc(__p, __new_sz); - if (__builtin_expect(__result == 0, 0)) - __result = _S_oom_realloc(__p, __new_sz); - return __result; - } - - static void (* __set_malloc_handler(void (*__f)()))() - { - void (* __old)() = __malloc_alloc_oom_handler; - __malloc_alloc_oom_handler = __f; - return __old; - } - }; - - // malloc_alloc out-of-memory handling - template<int __inst> - void (* __malloc_alloc_template<__inst>::__malloc_alloc_oom_handler)() = 0; - - template<int __inst> - void* - __malloc_alloc_template<__inst>:: - _S_oom_malloc(size_t __n) - { - void (* __my_malloc_handler)(); - void* __result; - - for (;;) - { - __my_malloc_handler = __malloc_alloc_oom_handler; - if (__builtin_expect(__my_malloc_handler == 0, 0)) - __throw_bad_alloc(); - (*__my_malloc_handler)(); - __result = malloc(__n); - if (__result) - return __result; - } - } - - template<int __inst> - void* - __malloc_alloc_template<__inst>:: - _S_oom_realloc(void* __p, size_t __n) - { - void (* __my_malloc_handler)(); - void* __result; - - for (;;) - { - __my_malloc_handler = __malloc_alloc_oom_handler; - if (__builtin_expect(__my_malloc_handler == 0, 0)) - __throw_bad_alloc(); - (*__my_malloc_handler)(); - __result = realloc(__p, __n); - if (__result) - return __result; - } - } - - // Should not be referenced within the library anymore. - typedef __new_alloc __mem_interface; - - /** - * @if maint - * This is used primarily (only?) in _Alloc_traits and other places to - * help provide the _Alloc_type typedef. All it does is forward the - * requests after some minimal checking. - * - * This is neither "standard"-conforming nor "SGI". The _Alloc parameter - * must be "SGI" style. - * @endif - * (See @link Allocators allocators info @endlink for more.) - */ - template<typename _Tp, typename _Alloc> - class __simple_alloc - { - public: - static _Tp* - allocate(size_t __n) - { - _Tp* __ret = 0; - if (__n) - __ret = static_cast<_Tp*>(_Alloc::allocate(__n * sizeof(_Tp))); - return __ret; - } - - static _Tp* - allocate() - { return (_Tp*) _Alloc::allocate(sizeof (_Tp)); } - - static void - deallocate(_Tp* __p, size_t __n) - { if (0 != __n) _Alloc::deallocate(__p, __n * sizeof (_Tp)); } - - static void - deallocate(_Tp* __p) - { _Alloc::deallocate(__p, sizeof (_Tp)); } - }; - - - /** - * @if maint - * An adaptor for an underlying allocator (_Alloc) to check the size - * arguments for debugging. - * - * "There is some evidence that this can confuse Purify." - SGI comment - * - * This adaptor is "SGI" style. The _Alloc parameter must also be "SGI". - * @endif - * (See @link Allocators allocators info @endlink for more.) - */ - template<typename _Alloc> - class __debug_alloc - { - private: - // Size of space used to store size. Note that this must be - // large enough to preserve alignment. - enum {_S_extra = 8}; - - public: - static void* - allocate(size_t __n) - { - char* __result = (char*)_Alloc::allocate(__n + (int) _S_extra); - *(size_t*)__result = __n; - return __result + (int) _S_extra; - } - - static void - deallocate(void* __p, size_t __n) - { - char* __real_p = (char*)__p - (int) _S_extra; - if (*(size_t*)__real_p != __n) - abort(); - _Alloc::deallocate(__real_p, __n + (int) _S_extra); - } - - static void* - reallocate(void* __p, size_t __old_sz, size_t __new_sz) - { - char* __real_p = (char*)__p - (int) _S_extra; - if (*(size_t*)__real_p != __old_sz) - abort(); - char* __result = (char*) _Alloc::reallocate(__real_p, - __old_sz + (int) _S_extra, - __new_sz + (int) _S_extra); - *(size_t*)__result = __new_sz; - return __result + (int) _S_extra; - } - }; - - - /** - * @if maint - * Default node allocator. "SGI" style. Uses various allocators to - * fulfill underlying requests (and makes as few requests as possible - * when in default high-speed pool mode). - * - * Important implementation properties: - * 0. If globally mandated, then allocate objects from __new_alloc - * 1. If the clients request an object of size > _MAX_BYTES, the resulting - * object will be obtained directly from __new_alloc - * 2. In all other cases, we allocate an object of size exactly - * _S_round_up(requested_size). Thus the client has enough size - * information that we can return the object to the proper free list - * without permanently losing part of the object. - * - * The first template parameter specifies whether more than one thread may - * use this allocator. It is safe to allocate an object from one instance - * of a default_alloc and deallocate it with another one. This effectively - * transfers its ownership to the second one. This may have undesirable - * effects on reference locality. - * - * The second parameter is unused and serves only to allow the creation of - * multiple default_alloc instances. Note that containers built on different - * allocator instances have different types, limiting the utility of this - * approach. If you do not wish to share the free lists with the main - * default_alloc instance, instantiate this with a non-zero __inst. - * - * @endif - * (See @link Allocators allocators info @endlink for more.) - */ - template<bool __threads, int __inst> - class __default_alloc_template - { - private: - enum {_ALIGN = 8}; - enum {_MAX_BYTES = 128}; - enum {_NFREELISTS = _MAX_BYTES / _ALIGN}; - - union _Obj - { - union _Obj* _M_free_list_link; - char _M_client_data[1]; // The client sees this. - }; - - static _Obj* volatile _S_free_list[_NFREELISTS]; - - // Chunk allocation state. - static char* _S_start_free; - static char* _S_end_free; - static size_t _S_heap_size; - - static _STL_mutex_lock _S_node_allocator_lock; - - static size_t - _S_round_up(size_t __bytes) - { return (((__bytes) + (size_t) _ALIGN-1) & ~((size_t) _ALIGN - 1)); } - - static size_t - _S_freelist_index(size_t __bytes) - { return (((__bytes) + (size_t)_ALIGN - 1)/(size_t)_ALIGN - 1); } - - // Returns an object of size __n, and optionally adds to size __n - // free list. - static void* - _S_refill(size_t __n); - - // Allocates a chunk for nobjs of size size. nobjs may be reduced - // if it is inconvenient to allocate the requested number. - static char* - _S_chunk_alloc(size_t __size, int& __nobjs); - - // It would be nice to use _STL_auto_lock here. But we need a - // test whether threads are in use. - struct _Lock - { - _Lock() { if (__threads) _S_node_allocator_lock._M_acquire_lock(); } - ~_Lock() { if (__threads) _S_node_allocator_lock._M_release_lock(); } - } __attribute__ ((__unused__)); - friend struct _Lock; - - static _Atomic_word _S_force_new; - - public: - // __n must be > 0 - static void* - allocate(size_t __n) - { - void* __ret = 0; - - // If there is a race through here, assume answer from getenv - // will resolve in same direction. Inspired by techniques - // to efficiently support threading found in basic_string.h. - if (_S_force_new == 0) - { - if (getenv("GLIBCPP_FORCE_NEW")) - __atomic_add(&_S_force_new, 1); - else - __atomic_add(&_S_force_new, -1); - } - - if ((__n > (size_t) _MAX_BYTES) || (_S_force_new > 0)) - __ret = __new_alloc::allocate(__n); - else - { - _Obj* volatile* __my_free_list = _S_free_list - + _S_freelist_index(__n); - // Acquire the lock here with a constructor call. This - // ensures that it is released in exit or during stack - // unwinding. - _Lock __lock_instance; - _Obj* __restrict__ __result = *__my_free_list; - if (__builtin_expect(__result == 0, 0)) - __ret = _S_refill(_S_round_up(__n)); - else - { - *__my_free_list = __result -> _M_free_list_link; - __ret = __result; - } - if (__builtin_expect(__ret == 0, 0)) - __throw_bad_alloc(); - } - return __ret; - } - - // __p may not be 0 - static void - deallocate(void* __p, size_t __n) - { - if ((__n > (size_t) _MAX_BYTES) || (_S_force_new > 0)) - __new_alloc::deallocate(__p, __n); - else - { - _Obj* volatile* __my_free_list = _S_free_list - + _S_freelist_index(__n); - _Obj* __q = (_Obj*)__p; - - // Acquire the lock here with a constructor call. This - // ensures that it is released in exit or during stack - // unwinding. - _Lock __lock_instance; - __q -> _M_free_list_link = *__my_free_list; - *__my_free_list = __q; - } - } - - static void* - reallocate(void* __p, size_t __old_sz, size_t __new_sz); - }; - - template<bool __threads, int __inst> _Atomic_word - __default_alloc_template<__threads, __inst>::_S_force_new = 0; - - template<bool __threads, int __inst> - inline bool - operator==(const __default_alloc_template<__threads,__inst>&, - const __default_alloc_template<__threads,__inst>&) - { return true; } - - template<bool __threads, int __inst> - inline bool - operator!=(const __default_alloc_template<__threads,__inst>&, - const __default_alloc_template<__threads,__inst>&) - { return false; } - - - // We allocate memory in large chunks in order to avoid fragmenting the - // heap too much. We assume that __size is properly aligned. We hold - // the allocation lock. - template<bool __threads, int __inst> - char* - __default_alloc_template<__threads, __inst>:: - _S_chunk_alloc(size_t __size, int& __nobjs) - { - char* __result; - size_t __total_bytes = __size * __nobjs; - size_t __bytes_left = _S_end_free - _S_start_free; - - if (__bytes_left >= __total_bytes) - { - __result = _S_start_free; - _S_start_free += __total_bytes; - return __result ; - } - else if (__bytes_left >= __size) - { - __nobjs = (int)(__bytes_left/__size); - __total_bytes = __size * __nobjs; - __result = _S_start_free; - _S_start_free += __total_bytes; - return __result; - } - else - { - size_t __bytes_to_get = - 2 * __total_bytes + _S_round_up(_S_heap_size >> 4); - // Try to make use of the left-over piece. - if (__bytes_left > 0) - { - _Obj* volatile* __my_free_list = - _S_free_list + _S_freelist_index(__bytes_left); - - ((_Obj*)(void*)_S_start_free) -> _M_free_list_link = *__my_free_list; - *__my_free_list = (_Obj*)(void*)_S_start_free; - } - _S_start_free = (char*) __new_alloc::allocate(__bytes_to_get); - if (_S_start_free == 0) - { - size_t __i; - _Obj* volatile* __my_free_list; - _Obj* __p; - // Try to make do with what we have. That can't hurt. We - // do not try smaller requests, since that tends to result - // in disaster on multi-process machines. - __i = __size; - for (; __i <= (size_t) _MAX_BYTES; __i += (size_t) _ALIGN) - { - __my_free_list = _S_free_list + _S_freelist_index(__i); - __p = *__my_free_list; - if (__p != 0) - { - *__my_free_list = __p -> _M_free_list_link; - _S_start_free = (char*)__p; - _S_end_free = _S_start_free + __i; - return _S_chunk_alloc(__size, __nobjs); - // Any leftover piece will eventually make it to the - // right free list. - } - } - _S_end_free = 0; // In case of exception. - _S_start_free = (char*)__new_alloc::allocate(__bytes_to_get); - // This should either throw an exception or remedy the situation. - // Thus we assume it succeeded. - } - _S_heap_size += __bytes_to_get; - _S_end_free = _S_start_free + __bytes_to_get; - return _S_chunk_alloc(__size, __nobjs); - } - } - - - // Returns an object of size __n, and optionally adds to "size - // __n"'s free list. We assume that __n is properly aligned. We - // hold the allocation lock. - template<bool __threads, int __inst> - void* - __default_alloc_template<__threads, __inst>::_S_refill(size_t __n) - { - int __nobjs = 20; - char* __chunk = _S_chunk_alloc(__n, __nobjs); - _Obj* volatile* __my_free_list; - _Obj* __result; - _Obj* __current_obj; - _Obj* __next_obj; - int __i; - - if (1 == __nobjs) - return __chunk; - __my_free_list = _S_free_list + _S_freelist_index(__n); - - // Build free list in chunk. - __result = (_Obj*)(void*)__chunk; - *__my_free_list = __next_obj = (_Obj*)(void*)(__chunk + __n); - for (__i = 1; ; __i++) - { - __current_obj = __next_obj; - __next_obj = (_Obj*)(void*)((char*)__next_obj + __n); - if (__nobjs - 1 == __i) - { - __current_obj -> _M_free_list_link = 0; - break; - } - else - __current_obj -> _M_free_list_link = __next_obj; - } - return __result; - } - - - template<bool threads, int inst> - void* - __default_alloc_template<threads, inst>:: - reallocate(void* __p, size_t __old_sz, size_t __new_sz) - { - void* __result; - size_t __copy_sz; - - if (__old_sz > (size_t) _MAX_BYTES && __new_sz > (size_t) _MAX_BYTES) - return(realloc(__p, __new_sz)); - if (_S_round_up(__old_sz) == _S_round_up(__new_sz)) - return(__p); - __result = allocate(__new_sz); - __copy_sz = __new_sz > __old_sz? __old_sz : __new_sz; - memcpy(__result, __p, __copy_sz); - deallocate(__p, __old_sz); - return __result; - } - - template<bool __threads, int __inst> - _STL_mutex_lock - __default_alloc_template<__threads,__inst>::_S_node_allocator_lock - __STL_MUTEX_INITIALIZER; - - template<bool __threads, int __inst> - char* __default_alloc_template<__threads,__inst>::_S_start_free = 0; - - template<bool __threads, int __inst> - char* __default_alloc_template<__threads,__inst>::_S_end_free = 0; - - template<bool __threads, int __inst> - size_t __default_alloc_template<__threads,__inst>::_S_heap_size = 0; - - template<bool __threads, int __inst> - typename __default_alloc_template<__threads,__inst>::_Obj* volatile - __default_alloc_template<__threads,__inst>::_S_free_list[_NFREELISTS]; - - typedef __default_alloc_template<true,0> __alloc; - typedef __default_alloc_template<false,0> __single_client_alloc; - - - /** - * @brief The "standard" allocator, as per [20.4]. - * - * The private _Alloc is "SGI" style. (See comments at the top - * of stl_alloc.h.) - * - * The underlying allocator behaves as follows. - * - __default_alloc_template is used via two typedefs - * - "__single_client_alloc" typedef does no locking for threads - * - "__alloc" typedef is threadsafe via the locks - * - __new_alloc is used for memory requests - * - * (See @link Allocators allocators info @endlink for more.) - */ - template<typename _Tp> - class allocator - { - typedef __alloc _Alloc; // The underlying allocator. - public: - typedef size_t size_type; - typedef ptrdiff_t difference_type; - typedef _Tp* pointer; - typedef const _Tp* const_pointer; - typedef _Tp& reference; - typedef const _Tp& const_reference; - typedef _Tp value_type; - - template<typename _Tp1> - struct rebind - { typedef allocator<_Tp1> other; }; - - allocator() throw() {} - allocator(const allocator&) throw() {} - template<typename _Tp1> - allocator(const allocator<_Tp1>&) throw() {} - ~allocator() throw() {} - - pointer - address(reference __x) const { return &__x; } - - const_pointer - address(const_reference __x) const { return &__x; } - - // NB: __n is permitted to be 0. The C++ standard says nothing - // about what the return value is when __n == 0. - _Tp* - allocate(size_type __n, const void* = 0) - { - _Tp* __ret = 0; - if (__n) - { - if (__n <= this->max_size()) - __ret = static_cast<_Tp*>(_Alloc::allocate(__n * sizeof(_Tp))); - else - __throw_bad_alloc(); - } - return __ret; - } - - // __p is not permitted to be a null pointer. - void - deallocate(pointer __p, size_type __n) - { _Alloc::deallocate(__p, __n * sizeof(_Tp)); } - - size_type - max_size() const throw() { return size_t(-1) / sizeof(_Tp); } - - void construct(pointer __p, const _Tp& __val) { new(__p) _Tp(__val); } - void destroy(pointer __p) { __p->~_Tp(); } - }; - - template<> - class allocator<void> - { - public: - typedef size_t size_type; - typedef ptrdiff_t difference_type; - typedef void* pointer; - typedef const void* const_pointer; - typedef void value_type; - - template<typename _Tp1> - struct rebind - { typedef allocator<_Tp1> other; }; - }; - - - template<typename _T1, typename _T2> - inline bool - operator==(const allocator<_T1>&, const allocator<_T2>&) - { return true; } - - template<typename _T1, typename _T2> - inline bool - operator!=(const allocator<_T1>&, const allocator<_T2>&) - { return false; } - - - /** - * @if maint - * Allocator adaptor to turn an "SGI" style allocator (e.g., - * __alloc, __malloc_alloc_template) into a "standard" conforming - * allocator. Note that this adaptor does *not* assume that all - * objects of the underlying alloc class are identical, nor does it - * assume that all of the underlying alloc's member functions are - * static member functions. Note, also, that __allocator<_Tp, - * __alloc> is essentially the same thing as allocator<_Tp>. - * @endif - * (See @link Allocators allocators info @endlink for more.) - */ - template<typename _Tp, typename _Alloc> - struct __allocator - { - _Alloc __underlying_alloc; - - typedef size_t size_type; - typedef ptrdiff_t difference_type; - typedef _Tp* pointer; - typedef const _Tp* const_pointer; - typedef _Tp& reference; - typedef const _Tp& const_reference; - typedef _Tp value_type; - - template<typename _Tp1> - struct rebind - { typedef __allocator<_Tp1, _Alloc> other; }; - - __allocator() throw() {} - __allocator(const __allocator& __a) throw() - : __underlying_alloc(__a.__underlying_alloc) {} - - template<typename _Tp1> - __allocator(const __allocator<_Tp1, _Alloc>& __a) throw() - : __underlying_alloc(__a.__underlying_alloc) {} - - ~__allocator() throw() {} - - pointer - address(reference __x) const { return &__x; } - - const_pointer - address(const_reference __x) const { return &__x; } - - // NB: __n is permitted to be 0. The C++ standard says nothing - // about what the return value is when __n == 0. - _Tp* - allocate(size_type __n, const void* = 0) - { - _Tp* __ret = 0; - if (__n) - __ret = static_cast<_Tp*>(_Alloc::allocate(__n * sizeof(_Tp))); - return __ret; - } - - // __p is not permitted to be a null pointer. - void - deallocate(pointer __p, size_type __n) - { __underlying_alloc.deallocate(__p, __n * sizeof(_Tp)); } - - size_type - max_size() const throw() { return size_t(-1) / sizeof(_Tp); } - - void - construct(pointer __p, const _Tp& __val) { new(__p) _Tp(__val); } - - void - destroy(pointer __p) { __p->~_Tp(); } - }; - - template<typename _Alloc> - struct __allocator<void, _Alloc> - { - typedef size_t size_type; - typedef ptrdiff_t difference_type; - typedef void* pointer; - typedef const void* const_pointer; - typedef void value_type; - - template<typename _Tp1> - struct rebind - { typedef __allocator<_Tp1, _Alloc> other; }; - }; - - template<typename _Tp, typename _Alloc> - inline bool - operator==(const __allocator<_Tp,_Alloc>& __a1, - const __allocator<_Tp,_Alloc>& __a2) - { return __a1.__underlying_alloc == __a2.__underlying_alloc; } - - template<typename _Tp, typename _Alloc> - inline bool - operator!=(const __allocator<_Tp, _Alloc>& __a1, - const __allocator<_Tp, _Alloc>& __a2) - { return __a1.__underlying_alloc != __a2.__underlying_alloc; } - - - //@{ - /** Comparison operators for all of the predifined SGI-style allocators. - * This ensures that __allocator<malloc_alloc> (for example) will work - * correctly. As required, all allocators compare equal. - */ - template<int inst> - inline bool - operator==(const __malloc_alloc_template<inst>&, - const __malloc_alloc_template<inst>&) - { return true; } - - template<int __inst> - inline bool - operator!=(const __malloc_alloc_template<__inst>&, - const __malloc_alloc_template<__inst>&) - { return false; } - - template<typename _Alloc> - inline bool - operator==(const __debug_alloc<_Alloc>&, const __debug_alloc<_Alloc>&) - { return true; } - - template<typename _Alloc> - inline bool - operator!=(const __debug_alloc<_Alloc>&, const __debug_alloc<_Alloc>&) - { return false; } - //@} - - - /** - * @if maint - * Another allocator adaptor: _Alloc_traits. This serves two purposes. - * First, make it possible to write containers that can use either "SGI" - * style allocators or "standard" allocators. Second, provide a mechanism - * so that containers can query whether or not the allocator has distinct - * instances. If not, the container can avoid wasting a word of memory to - * store an empty object. For examples of use, see stl_vector.h, etc, or - * any of the other classes derived from this one. - * - * This adaptor uses partial specialization. The general case of - * _Alloc_traits<_Tp, _Alloc> assumes that _Alloc is a - * standard-conforming allocator, possibly with non-equal instances and - * non-static members. (It still behaves correctly even if _Alloc has - * static member and if all instances are equal. Refinements affect - * performance, not correctness.) - * - * There are always two members: allocator_type, which is a standard- - * conforming allocator type for allocating objects of type _Tp, and - * _S_instanceless, a static const member of type bool. If - * _S_instanceless is true, this means that there is no difference - * between any two instances of type allocator_type. Furthermore, if - * _S_instanceless is true, then _Alloc_traits has one additional - * member: _Alloc_type. This type encapsulates allocation and - * deallocation of objects of type _Tp through a static interface; it - * has two member functions, whose signatures are - * - * - static _Tp* allocate(size_t) - * - static void deallocate(_Tp*, size_t) - * - * The size_t parameters are "standard" style (see top of stl_alloc.h) in - * that they take counts, not sizes. - * - * @endif - * (See @link Allocators allocators info @endlink for more.) - */ - //@{ - // The fully general version. - template<typename _Tp, typename _Allocator> - struct _Alloc_traits - { - static const bool _S_instanceless = false; - typedef typename _Allocator::template rebind<_Tp>::other allocator_type; - }; - - template<typename _Tp, typename _Allocator> - const bool _Alloc_traits<_Tp, _Allocator>::_S_instanceless; - - /// The version for the default allocator. - template<typename _Tp, typename _Tp1> - struct _Alloc_traits<_Tp, allocator<_Tp1> > - { - static const bool _S_instanceless = true; - typedef __simple_alloc<_Tp, __alloc> _Alloc_type; - typedef allocator<_Tp> allocator_type; - }; - //@} - - //@{ - /// Versions for the predefined "SGI" style allocators. - template<typename _Tp, int __inst> - struct _Alloc_traits<_Tp, __malloc_alloc_template<__inst> > - { - static const bool _S_instanceless = true; - typedef __simple_alloc<_Tp, __malloc_alloc_template<__inst> > _Alloc_type; - typedef __allocator<_Tp, __malloc_alloc_template<__inst> > allocator_type; - }; - - template<typename _Tp, bool __threads, int __inst> - struct _Alloc_traits<_Tp, __default_alloc_template<__threads, __inst> > - { - static const bool _S_instanceless = true; - typedef __simple_alloc<_Tp, __default_alloc_template<__threads, __inst> > - _Alloc_type; - typedef __allocator<_Tp, __default_alloc_template<__threads, __inst> > - allocator_type; - }; - - template<typename _Tp, typename _Alloc> - struct _Alloc_traits<_Tp, __debug_alloc<_Alloc> > - { - static const bool _S_instanceless = true; - typedef __simple_alloc<_Tp, __debug_alloc<_Alloc> > _Alloc_type; - typedef __allocator<_Tp, __debug_alloc<_Alloc> > allocator_type; - }; - //@} - - //@{ - /// Versions for the __allocator adaptor used with the predefined - /// "SGI" style allocators. - template<typename _Tp, typename _Tp1, int __inst> - struct _Alloc_traits<_Tp, - __allocator<_Tp1, __malloc_alloc_template<__inst> > > - { - static const bool _S_instanceless = true; - typedef __simple_alloc<_Tp, __malloc_alloc_template<__inst> > _Alloc_type; - typedef __allocator<_Tp, __malloc_alloc_template<__inst> > allocator_type; - }; - - template<typename _Tp, typename _Tp1, bool __thr, int __inst> - struct _Alloc_traits<_Tp, __allocator<_Tp1, __default_alloc_template<__thr, __inst> > > - { - static const bool _S_instanceless = true; - typedef __simple_alloc<_Tp, __default_alloc_template<__thr,__inst> > - _Alloc_type; - typedef __allocator<_Tp, __default_alloc_template<__thr,__inst> > - allocator_type; - }; - - template<typename _Tp, typename _Tp1, typename _Alloc> - struct _Alloc_traits<_Tp, __allocator<_Tp1, __debug_alloc<_Alloc> > > - { - static const bool _S_instanceless = true; - typedef __simple_alloc<_Tp, __debug_alloc<_Alloc> > _Alloc_type; - typedef __allocator<_Tp, __debug_alloc<_Alloc> > allocator_type; - }; - //@} - - // Inhibit implicit instantiations for required instantiations, - // which are defined via explicit instantiations elsewhere. - // NB: This syntax is a GNU extension. -#if _GLIBCPP_EXTERN_TEMPLATE - extern template class allocator<char>; - extern template class allocator<wchar_t>; - extern template class __default_alloc_template<true,0>; -#endif -} // namespace std - -#endif diff --git a/contrib/libstdc++/include/bits/stl_pthread_alloc.h b/contrib/libstdc++/include/bits/stl_pthread_alloc.h deleted file mode 100644 index 09b7d72..0000000 --- a/contrib/libstdc++/include/bits/stl_pthread_alloc.h +++ /dev/null @@ -1,60 +0,0 @@ -// Wrapper of pthread allocation header -*- C++ -*- - -// Copyright (C) 2001 Free Software Foundation, Inc. -// -// This file is part of the GNU ISO C++ Library. This library is free -// software; you can redistribute it and/or modify it under the -// terms of the GNU General Public License as published by the -// Free Software Foundation; either version 2, or (at your option) -// any later version. - -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. - -// You should have received a copy of the GNU General Public License along -// with this library; see the file COPYING. If not, write to the Free -// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, -// USA. - -// As a special exception, you may use this file as part of a free software -// library without restriction. Specifically, if other files instantiate -// templates or use macros or inline functions from this file, or you compile -// this file and link it with other files to produce an executable, this -// file does not by itself cause the resulting executable to be covered by -// the GNU General Public License. This exception does not however -// invalidate any other reasons why the executable file might be covered by -// the GNU General Public License. - -/* - * Copyright (c) 1996-1997 - * Silicon Graphics Computer Systems, Inc. - * - * Permission to use, copy, modify, distribute and sell this software - * and its documentation for any purpose is hereby granted without fee, - * provided that the above copyright notice appear in all copies and - * that both that copyright notice and this permission notice appear - * in supporting documentation. Silicon Graphics makes no - * representations about the suitability of this software for any - * purpose. It is provided "as is" without express or implied warranty. - */ - -/** @file stl_pthread_alloc.h - * This is an internal header file, included by other library headers. - * You should not attempt to use it directly. - */ - -#ifndef _CPP_BITS_STL_PTHREAD_ALLOC_H -#define _CPP_BITS_STL_PTHREAD_ALLOC_H 1 - -#include <bits/pthread_allocimpl.h> - -using std::_Pthread_alloc_template; -using std::pthread_alloc; - -#endif /* _CPP_BITS_STL_PTHREAD_ALLOC_H */ - -// Local Variables: -// mode:C++ -// End: diff --git a/contrib/libstdc++/include/bits/valarray_meta.h b/contrib/libstdc++/include/bits/valarray_meta.h deleted file mode 100644 index 29a2dac..0000000 --- a/contrib/libstdc++/include/bits/valarray_meta.h +++ /dev/null @@ -1,1147 +0,0 @@ -// The template and inlines for the -*- C++ -*- internal _Meta class. - -// Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. -// -// This file is part of the GNU ISO C++ Library. This library is free -// software; you can redistribute it and/or modify it under the -// terms of the GNU General Public License as published by the -// Free Software Foundation; either version 2, or (at your option) -// any later version. - -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. - -// You should have received a copy of the GNU General Public License along -// with this library; see the file COPYING. If not, write to the Free -// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, -// USA. - -// As a special exception, you may use this file as part of a free software -// library without restriction. Specifically, if other files instantiate -// templates or use macros or inline functions from this file, or you compile -// this file and link it with other files to produce an executable, this -// file does not by itself cause the resulting executable to be covered by -// the GNU General Public License. This exception does not however -// invalidate any other reasons why the executable file might be covered by -// the GNU General Public License. - -// Written by Gabriel Dos Reis <Gabriel.Dos-Reis@cmla.ens-cachan.fr> - -/** @file valarray_meta.h - * This is an internal header file, included by other library headers. - * You should not attempt to use it directly. - */ - -#ifndef _CPP_VALARRAY_META_H -#define _CPP_VALARRAY_META_H 1 - -#pragma GCC system_header - -namespace std -{ - // - // Implementing a loosened valarray return value is tricky. - // First we need to meet 26.3.1/3: we should not add more than - // two levels of template nesting. Therefore we resort to template - // template to "flatten" loosened return value types. - // At some point we use partial specialization to remove one level - // template nesting due to _Expr<> - // - - // This class is NOT defined. It doesn't need to. - template<typename _Tp1, typename _Tp2> class _Constant; - - // Implementations of unary functions applied to valarray<>s. - // I use hard-coded object functions here instead of a generic - // approach like pointers to function: - // 1) correctness: some functions take references, others values. - // we can't deduce the correct type afterwards. - // 2) efficiency -- object functions can be easily inlined - // 3) be Koenig-lookup-friendly - - struct __abs - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return abs(__t); } - }; - - struct __cos - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return cos(__t); } - }; - - struct __acos - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return acos(__t); } - }; - - struct __cosh - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return cosh(__t); } - }; - - struct __sin - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return sin(__t); } - }; - - struct __asin - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return asin(__t); } - }; - - struct __sinh - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return sinh(__t); } - }; - - struct __tan - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return tan(__t); } - }; - - struct __atan - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return atan(__t); } - }; - - struct __tanh - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return tanh(__t); } - }; - - struct __exp - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return exp(__t); } - }; - - struct __log - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return log(__t); } - }; - - struct __log10 - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return log10(__t); } - }; - - struct __sqrt - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return sqrt(__t); } - }; - - // In the past, we used to tailor operator applications semantics - // to the specialization of standard function objects (i.e. plus<>, etc.) - // That is incorrect. Therefore we provide our own surrogates. - - struct __unary_plus - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return +__t; } - }; - - struct __negate - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return -__t; } - }; - - struct __bitwise_not - { - template<typename _Tp> - _Tp operator()(const _Tp& __t) const { return ~__t; } - }; - - struct __plus - { - template<typename _Tp> - _Tp operator()(const _Tp& __x, const _Tp& __y) const - { return __x + __y; } - }; - - struct __minus - { - template<typename _Tp> - _Tp operator()(const _Tp& __x, const _Tp& __y) const - { return __x - __y; } - }; - - struct __multiplies - { - template<typename _Tp> - _Tp operator()(const _Tp& __x, const _Tp& __y) const - { return __x * __y; } - }; - - struct __divides - { - template<typename _Tp> - _Tp operator()(const _Tp& __x, const _Tp& __y) const - { return __x / __y; } - }; - - struct __modulus - { - template<typename _Tp> - _Tp operator()(const _Tp& __x, const _Tp& __y) const - { return __x % __y; } - }; - - struct __bitwise_xor - { - template<typename _Tp> - _Tp operator()(const _Tp& __x, const _Tp& __y) const - { return __x ^ __y; } - }; - - struct __bitwise_and - { - template<typename _Tp> - _Tp operator()(const _Tp& __x, const _Tp& __y) const - { return __x & __y; } - }; - - struct __bitwise_or - { - template<typename _Tp> - _Tp operator()(const _Tp& __x, const _Tp& __y) const - { return __x | __y; } - }; - - struct __shift_left - { - template<typename _Tp> - _Tp operator()(const _Tp& __x, const _Tp& __y) const - { return __x << __y; } - }; - - struct __shift_right - { - template<typename _Tp> - _Tp operator()(const _Tp& __x, const _Tp& __y) const - { return __x >> __y; } - }; - - struct __logical_and - { - template<typename _Tp> - bool operator()(const _Tp& __x, const _Tp& __y) const - { return __x && __y; } - }; - - struct __logical_or - { - template<typename _Tp> - bool operator()(const _Tp& __x, const _Tp& __y) const - { return __x || __y; } - }; - - struct __logical_not - { - template<typename _Tp> - bool operator()(const _Tp& __x) const { return !__x; } - }; - - struct __equal_to - { - template<typename _Tp> - bool operator()(const _Tp& __x, const _Tp& __y) const - { return __x == __y; } - }; - - struct __not_equal_to - { - template<typename _Tp> - bool operator()(const _Tp& __x, const _Tp& __y) const - { return __x != __y; } - }; - - struct __less - { - template<typename _Tp> - bool operator()(const _Tp& __x, const _Tp& __y) const - { return __x < __y; } - }; - - struct __greater - { - template<typename _Tp> - bool operator()(const _Tp& __x, const _Tp& __y) const - { return __x > __y; } - }; - - struct __less_equal - { - template<typename _Tp> - bool operator()(const _Tp& __x, const _Tp& __y) const - { return __x <= __y; } - }; - - struct __greater_equal - { - template<typename _Tp> - bool operator()(const _Tp& __x, const _Tp& __y) const - { return __x >= __y; } - }; - - // The few binary functions we miss. - struct __atan2 - { - template<typename _Tp> - _Tp operator()(const _Tp& __x, const _Tp& __y) const - { return atan2(__x, __y); } - }; - - struct __pow - { - template<typename _Tp> - _Tp operator()(const _Tp& __x, const _Tp& __y) const - { return pow(__x, __y); } - }; - - - // We need these bits in order to recover the return type of - // some functions/operators now that we're no longer using - // function templates. - template<typename, typename _Tp> - struct __fun - { - typedef _Tp result_type; - }; - - // several specializations for relational operators. - template<typename _Tp> - struct __fun<__logical_not, _Tp> - { - typedef bool result_type; - }; - - template<typename _Tp> - struct __fun<__logical_and, _Tp> - { - typedef bool result_type; - }; - - template<typename _Tp> - struct __fun<__logical_or, _Tp> - { - typedef bool result_type; - }; - - template<typename _Tp> - struct __fun<__less, _Tp> - { - typedef bool result_type; - }; - - template<typename _Tp> - struct __fun<__greater, _Tp> - { - typedef bool result_type; - }; - - template<typename _Tp> - struct __fun<__less_equal, _Tp> - { - typedef bool result_type; - }; - - template<typename _Tp> - struct __fun<__greater_equal, _Tp> - { - typedef bool result_type; - }; - - template<typename _Tp> - struct __fun<__equal_to, _Tp> - { - typedef bool result_type; - }; - - template<typename _Tp> - struct __fun<__not_equal_to, _Tp> - { - typedef bool result_type; - }; - - // - // Apply function taking a value/const reference closure - // - - template<typename _Dom, typename _Arg> - class _FunBase - { - public: - typedef typename _Dom::value_type value_type; - - _FunBase(const _Dom& __e, value_type __f(_Arg)) - : _M_expr(__e), _M_func(__f) {} - - value_type operator[](size_t __i) const - { return _M_func (_M_expr[__i]); } - - size_t size() const { return _M_expr.size ();} - - private: - const _Dom& _M_expr; - value_type (*_M_func)(_Arg); - }; - - template<class _Dom> - struct _ValFunClos<_Expr,_Dom> : _FunBase<_Dom, typename _Dom::value_type> - { - typedef _FunBase<_Dom, typename _Dom::value_type> _Base; - typedef typename _Base::value_type value_type; - typedef value_type _Tp; - - _ValFunClos(const _Dom& __e, _Tp __f(_Tp)) : _Base(__e, __f) {} - }; - - template<typename _Tp> - struct _ValFunClos<_ValArray,_Tp> : _FunBase<valarray<_Tp>, _Tp> - { - typedef _FunBase<valarray<_Tp>, _Tp> _Base; - typedef _Tp value_type; - - _ValFunClos(const valarray<_Tp>& __v, _Tp __f(_Tp)) : _Base(__v, __f) {} - }; - - template<class _Dom> - struct _RefFunClos<_Expr,_Dom> : - _FunBase<_Dom, const typename _Dom::value_type&> - { - typedef _FunBase<_Dom, const typename _Dom::value_type&> _Base; - typedef typename _Base::value_type value_type; - typedef value_type _Tp; - - _RefFunClos(const _Dom& __e, _Tp __f(const _Tp&)) - : _Base(__e, __f) {} - }; - - template<typename _Tp> - struct _RefFunClos<_ValArray,_Tp> : _FunBase<valarray<_Tp>, const _Tp&> - { - typedef _FunBase<valarray<_Tp>, const _Tp&> _Base; - typedef _Tp value_type; - - _RefFunClos(const valarray<_Tp>& __v, _Tp __f(const _Tp&)) - : _Base(__v, __f) {} - }; - - // - // Unary expression closure. - // - - template<class _Oper, class _Arg> - class _UnBase - { - public: - typedef typename _Arg::value_type _Vt; - typedef typename __fun<_Oper, _Vt>::result_type value_type; - - _UnBase(const _Arg& __e) : _M_expr(__e) {} - - value_type operator[](size_t __i) const - { return _Oper()(_M_expr[__i]); } - - size_t size() const { return _M_expr.size(); } - - private: - const _Arg& _M_expr; - }; - - template<class _Oper, class _Dom> - struct _UnClos<_Oper, _Expr, _Dom> : _UnBase<_Oper, _Dom> - { - typedef _Dom _Arg; - typedef _UnBase<_Oper, _Dom> _Base; - typedef typename _Base::value_type value_type; - - _UnClos(const _Arg& __e) : _Base(__e) {} - }; - - template<class _Oper, typename _Tp> - struct _UnClos<_Oper, _ValArray, _Tp> : _UnBase<_Oper, valarray<_Tp> > - { - typedef valarray<_Tp> _Arg; - typedef _UnBase<_Oper, valarray<_Tp> > _Base; - typedef typename _Base::value_type value_type; - - _UnClos(const _Arg& __e) : _Base(__e) {} - }; - - - // - // Binary expression closure. - // - - template<class _Oper, class _FirstArg, class _SecondArg> - class _BinBase - { - public: - typedef typename _FirstArg::value_type _Vt; - typedef typename __fun<_Oper, _Vt>::result_type value_type; - - _BinBase(const _FirstArg& __e1, const _SecondArg& __e2) - : _M_expr1(__e1), _M_expr2(__e2) {} - - value_type operator[](size_t __i) const - { return _Oper()(_M_expr1[__i], _M_expr2[__i]); } - - size_t size() const { return _M_expr1.size(); } - - private: - const _FirstArg& _M_expr1; - const _SecondArg& _M_expr2; - }; - - - template<class _Oper, class _Clos> - class _BinBase2 - { - public: - typedef typename _Clos::value_type _Vt; - typedef typename __fun<_Oper, _Vt>::result_type value_type; - - _BinBase2(const _Clos& __e, const _Vt& __t) - : _M_expr1(__e), _M_expr2(__t) {} - - value_type operator[](size_t __i) const - { return _Oper()(_M_expr1[__i], _M_expr2); } - - size_t size() const { return _M_expr1.size(); } - - private: - const _Clos& _M_expr1; - const _Vt& _M_expr2; - }; - - template<class _Oper, class _Clos> - class _BinBase1 - { - public: - typedef typename _Clos::value_type _Vt; - typedef typename __fun<_Oper, _Vt>::result_type value_type; - - _BinBase1(const _Vt& __t, const _Clos& __e) - : _M_expr1(__t), _M_expr2(__e) {} - - value_type operator[](size_t __i) const - { return _Oper()(_M_expr1, _M_expr2[__i]); } - - size_t size() const { return _M_expr2.size(); } - - private: - const _Vt& _M_expr1; - const _Clos& _M_expr2; - }; - - template<class _Oper, class _Dom1, class _Dom2> - struct _BinClos<_Oper, _Expr, _Expr, _Dom1, _Dom2> - : _BinBase<_Oper,_Dom1,_Dom2> - { - typedef _BinBase<_Oper,_Dom1,_Dom2> _Base; - typedef typename _Base::value_type value_type; - - _BinClos(const _Dom1& __e1, const _Dom2& __e2) : _Base(__e1, __e2) {} - }; - - template<class _Oper, typename _Tp> - struct _BinClos<_Oper,_ValArray,_ValArray,_Tp,_Tp> - : _BinBase<_Oper,valarray<_Tp>,valarray<_Tp> > - { - typedef _BinBase<_Oper,valarray<_Tp>,valarray<_Tp> > _Base; - typedef _Tp value_type; - - _BinClos(const valarray<_Tp>& __v, const valarray<_Tp>& __w) - : _Base(__v, __w) {} - }; - - template<class _Oper, class _Dom> - struct _BinClos<_Oper,_Expr,_ValArray,_Dom,typename _Dom::value_type> - : _BinBase<_Oper,_Dom,valarray<typename _Dom::value_type> > - { - typedef typename _Dom::value_type _Tp; - typedef _BinBase<_Oper,_Dom,valarray<_Tp> > _Base; - typedef typename _Base::value_type value_type; - - _BinClos(const _Dom& __e1, const valarray<_Tp>& __e2) - : _Base(__e1, __e2) {} - }; - - template<class _Oper, class _Dom> - struct _BinClos<_Oper,_ValArray,_Expr,typename _Dom::value_type,_Dom> - : _BinBase<_Oper,valarray<typename _Dom::value_type>,_Dom> - { - typedef typename _Dom::value_type _Tp; - typedef _BinBase<_Oper,valarray<_Tp>,_Dom> _Base; - typedef typename _Base::value_type value_type; - - _BinClos(const valarray<_Tp>& __e1, const _Dom& __e2) - : _Base(__e1, __e2) {} - }; - - template<class _Oper, class _Dom> - struct _BinClos<_Oper,_Expr,_Constant,_Dom,typename _Dom::value_type> - : _BinBase2<_Oper,_Dom> - { - typedef typename _Dom::value_type _Tp; - typedef _BinBase2<_Oper,_Dom> _Base; - typedef typename _Base::value_type value_type; - - _BinClos(const _Dom& __e1, const _Tp& __e2) : _Base(__e1, __e2) {} - }; - - template<class _Oper, class _Dom> - struct _BinClos<_Oper,_Constant,_Expr,typename _Dom::value_type,_Dom> - : _BinBase1<_Oper,_Dom> - { - typedef typename _Dom::value_type _Tp; - typedef _BinBase1<_Oper,_Dom> _Base; - typedef typename _Base::value_type value_type; - - _BinClos(const _Tp& __e1, const _Dom& __e2) : _Base(__e1, __e2) {} - }; - - template<class _Oper, typename _Tp> - struct _BinClos<_Oper,_ValArray,_Constant,_Tp,_Tp> - : _BinBase2<_Oper,valarray<_Tp> > - { - typedef _BinBase2<_Oper,valarray<_Tp> > _Base; - typedef typename _Base::value_type value_type; - - _BinClos(const valarray<_Tp>& __v, const _Tp& __t) : _Base(__v, __t) {} - }; - - template<class _Oper, typename _Tp> - struct _BinClos<_Oper,_Constant,_ValArray,_Tp,_Tp> - : _BinBase1<_Oper,valarray<_Tp> > - { - typedef _BinBase1<_Oper,valarray<_Tp> > _Base; - typedef typename _Base::value_type value_type; - - _BinClos(const _Tp& __t, const valarray<_Tp>& __v) : _Base(__t, __v) {} - }; - - - // - // slice_array closure. - // - template<typename _Dom> class _SBase { - public: - typedef typename _Dom::value_type value_type; - - _SBase (const _Dom& __e, const slice& __s) - : _M_expr (__e), _M_slice (__s) {} - value_type operator[] (size_t __i) const - { return _M_expr[_M_slice.start () + __i * _M_slice.stride ()]; } - size_t size() const { return _M_slice.size (); } - - private: - const _Dom& _M_expr; - const slice& _M_slice; - }; - - template<typename _Tp> class _SBase<_Array<_Tp> > { - public: - typedef _Tp value_type; - - _SBase (_Array<_Tp> __a, const slice& __s) - : _M_array (__a._M_data+__s.start()), _M_size (__s.size()), - _M_stride (__s.stride()) {} - value_type operator[] (size_t __i) const - { return _M_array._M_data[__i * _M_stride]; } - size_t size() const { return _M_size; } - - private: - const _Array<_Tp> _M_array; - const size_t _M_size; - const size_t _M_stride; - }; - - template<class _Dom> struct _SClos<_Expr,_Dom> : _SBase<_Dom> { - typedef _SBase<_Dom> _Base; - typedef typename _Base::value_type value_type; - - _SClos (const _Dom& __e, const slice& __s) : _Base (__e, __s) {} - }; - - template<typename _Tp> - struct _SClos<_ValArray,_Tp> : _SBase<_Array<_Tp> > { - typedef _SBase<_Array<_Tp> > _Base; - typedef _Tp value_type; - - _SClos (_Array<_Tp> __a, const slice& __s) : _Base (__a, __s) {} - }; - - // - // gslice_array closure. - // - template<class _Dom> class _GBase { - public: - typedef typename _Dom::value_type value_type; - - _GBase (const _Dom& __e, const valarray<size_t>& __i) - : _M_expr (__e), _M_index(__i) {} - value_type operator[] (size_t __i) const - { return _M_expr[_M_index[__i]]; } - size_t size () const { return _M_index.size(); } - - private: - const _Dom& _M_expr; - const valarray<size_t>& _M_index; - }; - - template<typename _Tp> class _GBase<_Array<_Tp> > { - public: - typedef _Tp value_type; - - _GBase (_Array<_Tp> __a, const valarray<size_t>& __i) - : _M_array (__a), _M_index(__i) {} - value_type operator[] (size_t __i) const - { return _M_array._M_data[_M_index[__i]]; } - size_t size () const { return _M_index.size(); } - - private: - const _Array<_Tp> _M_array; - const valarray<size_t>& _M_index; - }; - - template<class _Dom> struct _GClos<_Expr,_Dom> : _GBase<_Dom> { - typedef _GBase<_Dom> _Base; - typedef typename _Base::value_type value_type; - - _GClos (const _Dom& __e, const valarray<size_t>& __i) - : _Base (__e, __i) {} - }; - - template<typename _Tp> - struct _GClos<_ValArray,_Tp> : _GBase<_Array<_Tp> > { - typedef _GBase<_Array<_Tp> > _Base; - typedef typename _Base::value_type value_type; - - _GClos (_Array<_Tp> __a, const valarray<size_t>& __i) - : _Base (__a, __i) {} - }; - - // - // indirect_array closure - // - - template<class _Dom> class _IBase { - public: - typedef typename _Dom::value_type value_type; - - _IBase (const _Dom& __e, const valarray<size_t>& __i) - : _M_expr (__e), _M_index (__i) {} - value_type operator[] (size_t __i) const - { return _M_expr[_M_index[__i]]; } - size_t size() const { return _M_index.size(); } - - private: - const _Dom& _M_expr; - const valarray<size_t>& _M_index; - }; - - template<class _Dom> struct _IClos<_Expr,_Dom> : _IBase<_Dom> { - typedef _IBase<_Dom> _Base; - typedef typename _Base::value_type value_type; - - _IClos (const _Dom& __e, const valarray<size_t>& __i) - : _Base (__e, __i) {} - }; - - template<typename _Tp> - struct _IClos<_ValArray,_Tp> : _IBase<valarray<_Tp> > { - typedef _IBase<valarray<_Tp> > _Base; - typedef _Tp value_type; - - _IClos (const valarray<_Tp>& __a, const valarray<size_t>& __i) - : _Base (__a, __i) {} - }; - - // - // class _Expr - // - template<class _Clos, typename _Tp> - class _Expr - { - public: - typedef _Tp value_type; - - _Expr(const _Clos&); - - const _Clos& operator()() const; - - value_type operator[](size_t) const; - valarray<value_type> operator[](slice) const; - valarray<value_type> operator[](const gslice&) const; - valarray<value_type> operator[](const valarray<bool>&) const; - valarray<value_type> operator[](const valarray<size_t>&) const; - - _Expr<_UnClos<__unary_plus,std::_Expr,_Clos>, value_type> - operator+() const; - - _Expr<_UnClos<__negate,std::_Expr,_Clos>, value_type> - operator-() const; - - _Expr<_UnClos<__bitwise_not,std::_Expr,_Clos>, value_type> - operator~() const; - - _Expr<_UnClos<__logical_not,std::_Expr,_Clos>, bool> - operator!() const; - - size_t size() const; - value_type sum() const; - - valarray<value_type> shift(int) const; - valarray<value_type> cshift(int) const; - - value_type min() const; - value_type max() const; - - valarray<value_type> apply(value_type (*)(const value_type&)) const; - valarray<value_type> apply(value_type (*)(value_type)) const; - - private: - const _Clos _M_closure; - }; - - template<class _Clos, typename _Tp> - inline - _Expr<_Clos,_Tp>::_Expr(const _Clos& __c) : _M_closure(__c) {} - - template<class _Clos, typename _Tp> - inline const _Clos& - _Expr<_Clos,_Tp>::operator()() const - { return _M_closure; } - - template<class _Clos, typename _Tp> - inline _Tp - _Expr<_Clos,_Tp>::operator[](size_t __i) const - { return _M_closure[__i]; } - - template<class _Clos, typename _Tp> - inline valarray<_Tp> - _Expr<_Clos,_Tp>::operator[](slice __s) const - { return _M_closure[__s]; } - - template<class _Clos, typename _Tp> - inline valarray<_Tp> - _Expr<_Clos,_Tp>::operator[](const gslice& __gs) const - { return _M_closure[__gs]; } - - template<class _Clos, typename _Tp> - inline valarray<_Tp> - _Expr<_Clos,_Tp>::operator[](const valarray<bool>& __m) const - { return _M_closure[__m]; } - - template<class _Clos, typename _Tp> - inline valarray<_Tp> - _Expr<_Clos,_Tp>::operator[](const valarray<size_t>& __i) const - { return _M_closure[__i]; } - - template<class _Clos, typename _Tp> - inline size_t - _Expr<_Clos,_Tp>::size() const { return _M_closure.size (); } - - template<class _Clos, typename _Tp> - inline valarray<_Tp> - _Expr<_Clos, _Tp>::shift(int __n) const - { return valarray<_Tp>(_M_closure).shift(__n); } - - template<class _Clos, typename _Tp> - inline valarray<_Tp> - _Expr<_Clos, _Tp>::cshift(int __n) const - { return valarray<_Tp>(_M_closure).cshift(__n); } - - template<class _Clos, typename _Tp> - inline valarray<_Tp> - _Expr<_Clos, _Tp>::apply(_Tp __f(const _Tp&)) const - { return valarray<_Tp>(_M_closure).apply(__f); } - - template<class _Clos, typename _Tp> - inline valarray<_Tp> - _Expr<_Clos, _Tp>::apply(_Tp __f(_Tp)) const - { return valarray<_Tp>(_M_closure).apply(__f); } - - // XXX: replace this with a more robust summation algorithm. - template<class _Clos, typename _Tp> - inline _Tp - _Expr<_Clos,_Tp>::sum() const - { - size_t __n = _M_closure.size(); - if (__n == 0) - return _Tp(); - else - { - _Tp __s = _M_closure[--__n]; - while (__n != 0) - __s += _M_closure[--__n]; - return __s; - } - } - - template<class _Clos, typename _Tp> - inline _Tp - _Expr<_Clos, _Tp>::min() const - { return __valarray_min(_M_closure); } - - template<class _Clos, typename _Tp> - inline _Tp - _Expr<_Clos, _Tp>::max() const - { return __valarray_max(_M_closure); } - - template<class _Dom, typename _Tp> - inline _Expr<_UnClos<__logical_not,_Expr,_Dom>, bool> - _Expr<_Dom,_Tp>::operator!() const - { - typedef _UnClos<__logical_not,std::_Expr,_Dom> _Closure; - return _Expr<_Closure,_Tp>(_Closure(this->_M_closure)); - } - -#define _DEFINE_EXPR_UNARY_OPERATOR(_Op, _Name) \ - template<class _Dom, typename _Tp> \ - inline _Expr<_UnClos<_Name,std::_Expr,_Dom>,_Tp> \ - _Expr<_Dom,_Tp>::operator _Op() const \ - { \ - typedef _UnClos<_Name,std::_Expr,_Dom> _Closure; \ - return _Expr<_Closure,_Tp>(_Closure(this->_M_closure)); \ - } - - _DEFINE_EXPR_UNARY_OPERATOR(+, __unary_plus) - _DEFINE_EXPR_UNARY_OPERATOR(-, __negate) - _DEFINE_EXPR_UNARY_OPERATOR(~, __bitwise_not) - -#undef _DEFINE_EXPR_UNARY_OPERATOR - - -#define _DEFINE_EXPR_BINARY_OPERATOR(_Op, _Name) \ - template<class _Dom1, class _Dom2> \ - inline _Expr<_BinClos<_Name,_Expr,_Expr,_Dom1,_Dom2>, \ - typename __fun<_Name, typename _Dom1::value_type>::result_type>\ - operator _Op(const _Expr<_Dom1,typename _Dom1::value_type>& __v, \ - const _Expr<_Dom2,typename _Dom2::value_type>& __w) \ - { \ - typedef typename _Dom1::value_type _Arg; \ - typedef typename __fun<_Name, _Arg>::result_type _Value; \ - typedef _BinClos<_Name,_Expr,_Expr,_Dom1,_Dom2> _Closure; \ - return _Expr<_Closure,_Value>(_Closure(__v(), __w())); \ - } \ - \ -template<class _Dom> \ -inline _Expr<_BinClos<_Name,_Expr,_Constant,_Dom,typename _Dom::value_type>,\ - typename __fun<_Name, typename _Dom::value_type>::result_type>\ -operator _Op(const _Expr<_Dom,typename _Dom::value_type>& __v, \ - const typename _Dom::value_type& __t) \ -{ \ - typedef typename _Dom::value_type _Arg; \ - typedef typename __fun<_Name, _Arg>::result_type _Value; \ - typedef _BinClos<_Name,_Expr,_Constant,_Dom,_Arg> _Closure; \ - return _Expr<_Closure,_Value>(_Closure(__v(), __t)); \ -} \ - \ -template<class _Dom> \ -inline _Expr<_BinClos<_Name,_Constant,_Expr,typename _Dom::value_type,_Dom>,\ - typename __fun<_Name, typename _Dom::value_type>::result_type>\ -operator _Op(const typename _Dom::value_type& __t, \ - const _Expr<_Dom,typename _Dom::value_type>& __v) \ -{ \ - typedef typename _Dom::value_type _Arg; \ - typedef typename __fun<_Name, _Arg>::result_type _Value; \ - typedef _BinClos<_Name,_Constant,_Expr,_Arg,_Dom> _Closure; \ - return _Expr<_Closure,_Value>(_Closure(__t, __v())); \ -} \ - \ -template<class _Dom> \ -inline _Expr<_BinClos<_Name,_Expr,_ValArray,_Dom,typename _Dom::value_type>,\ - typename __fun<_Name, typename _Dom::value_type>::result_type>\ -operator _Op(const _Expr<_Dom,typename _Dom::value_type>& __e, \ - const valarray<typename _Dom::value_type>& __v) \ -{ \ - typedef typename _Dom::value_type _Arg; \ - typedef typename __fun<_Name, _Arg>::result_type _Value; \ - typedef _BinClos<_Name,_Expr,_ValArray,_Dom,_Arg> _Closure; \ - return _Expr<_Closure,_Value>(_Closure(__e(), __v)); \ -} \ - \ -template<class _Dom> \ -inline _Expr<_BinClos<_Name,_ValArray,_Expr,typename _Dom::value_type,_Dom>,\ - typename __fun<_Name, typename _Dom::value_type>::result_type>\ -operator _Op(const valarray<typename _Dom::value_type>& __v, \ - const _Expr<_Dom,typename _Dom::value_type>& __e) \ -{ \ - typedef typename _Dom::value_type _Tp; \ - typedef typename __fun<_Name, _Tp>::result_type _Value; \ - typedef _BinClos<_Name,_ValArray,_Expr,_Tp,_Dom> _Closure; \ - return _Expr<_Closure,_Value> (_Closure (__v, __e ())); \ -} - - _DEFINE_EXPR_BINARY_OPERATOR(+, __plus) - _DEFINE_EXPR_BINARY_OPERATOR(-, __minus) - _DEFINE_EXPR_BINARY_OPERATOR(*, __multiplies) - _DEFINE_EXPR_BINARY_OPERATOR(/, __divides) - _DEFINE_EXPR_BINARY_OPERATOR(%, __modulus) - _DEFINE_EXPR_BINARY_OPERATOR(^, __bitwise_xor) - _DEFINE_EXPR_BINARY_OPERATOR(&, __bitwise_and) - _DEFINE_EXPR_BINARY_OPERATOR(|, __bitwise_or) - _DEFINE_EXPR_BINARY_OPERATOR(<<, __shift_left) - _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right) - _DEFINE_EXPR_BINARY_OPERATOR(&&, __logical_and) - _DEFINE_EXPR_BINARY_OPERATOR(||, __logical_or) - _DEFINE_EXPR_BINARY_OPERATOR(==, __equal_to) - _DEFINE_EXPR_BINARY_OPERATOR(!=, __not_equal_to) - _DEFINE_EXPR_BINARY_OPERATOR(<, __less) - _DEFINE_EXPR_BINARY_OPERATOR(>, __greater) - _DEFINE_EXPR_BINARY_OPERATOR(<=, __less_equal) - _DEFINE_EXPR_BINARY_OPERATOR(>=, __greater_equal) - -#undef _DEFINE_EXPR_BINARY_OPERATOR - -#define _DEFINE_EXPR_UNARY_FUNCTION(_Name) \ - template<class _Dom> \ - inline _Expr<_UnClos<__##_Name,_Expr,_Dom>,typename _Dom::value_type>\ - _Name(const _Expr<_Dom,typename _Dom::value_type>& __e) \ - { \ - typedef typename _Dom::value_type _Tp; \ - typedef _UnClos<__##_Name,_Expr,_Dom> _Closure; \ - return _Expr<_Closure,_Tp>(_Closure(__e())); \ - } \ - \ - template<typename _Tp> \ - inline _Expr<_UnClos<__##_Name,_ValArray,_Tp>,_Tp> \ - _Name(const valarray<_Tp>& __v) \ - { \ - typedef _UnClos<__##_Name,_ValArray,_Tp> _Closure; \ - return _Expr<_Closure,_Tp>(_Closure(__v)); \ - } - - _DEFINE_EXPR_UNARY_FUNCTION(abs) - _DEFINE_EXPR_UNARY_FUNCTION(cos) - _DEFINE_EXPR_UNARY_FUNCTION(acos) - _DEFINE_EXPR_UNARY_FUNCTION(cosh) - _DEFINE_EXPR_UNARY_FUNCTION(sin) - _DEFINE_EXPR_UNARY_FUNCTION(asin) - _DEFINE_EXPR_UNARY_FUNCTION(sinh) - _DEFINE_EXPR_UNARY_FUNCTION(tan) - _DEFINE_EXPR_UNARY_FUNCTION(tanh) - _DEFINE_EXPR_UNARY_FUNCTION(atan) - _DEFINE_EXPR_UNARY_FUNCTION(exp) - _DEFINE_EXPR_UNARY_FUNCTION(log) - _DEFINE_EXPR_UNARY_FUNCTION(log10) - _DEFINE_EXPR_UNARY_FUNCTION(sqrt) - -#undef _DEFINE_EXPR_UNARY_FUNCTION - -#define _DEFINE_EXPR_BINARY_FUNCTION(_Fun) \ - template<class _Dom1, class _Dom2> \ - inline _Expr<_BinClos<__##_Fun,_Expr,_Expr,_Dom1,_Dom2>, \ - typename _Dom1::value_type> \ - _Fun(const _Expr<_Dom1,typename _Dom1::value_type>& __e1, \ - const _Expr<_Dom2,typename _Dom2::value_type>& __e2) \ - { \ - typedef typename _Dom1::value_type _Tp; \ - typedef _BinClos<__##_Fun,_Expr,_Expr,_Dom1,_Dom2> _Closure; \ - return _Expr<_Closure,_Tp>(_Closure(__e1(), __e2())); \ - } \ - \ - template<class _Dom> \ - inline _Expr<_BinClos<__##_Fun, _Expr, _ValArray, _Dom, \ - typename _Dom::value_type>, \ - typename _Dom::value_type> \ - _Fun(const _Expr<_Dom,typename _Dom::value_type>& __e, \ - const valarray<typename _Dom::value_type>& __v) \ - { \ - typedef typename _Dom::value_type _Tp; \ - typedef _BinClos<__##_Fun, _Expr, _ValArray, _Dom, _Tp> _Closure;\ - return _Expr<_Closure,_Tp>(_Closure(__e(), __v)); \ - } \ - \ - template<class _Dom> \ - inline _Expr<_BinClos<__##_Fun, _ValArray, _Expr, \ - typename _Dom::value_type,_Dom>, \ - typename _Dom::value_type> \ - _Fun(const valarray<typename _Dom::valarray>& __v, \ - const _Expr<_Dom,typename _Dom::value_type>& __e) \ - { \ - typedef typename _Dom::value_type _Tp; \ - typedef _BinClos<__##_Fun,_ValArray,_Expr,_Tp,_Dom> _Closure; \ - return _Expr<_Closure,_Tp>(_Closure(__v, __e())); \ - } \ - \ - template<class _Dom> \ - inline _Expr<_BinClos<__##_Fun,_Expr,_Constant,_Dom, \ - typename _Dom::value_type>, \ - typename _Dom::value_type> \ - _Fun(const _Expr<_Dom, typename _Dom::value_type>& __e, \ - const typename _Dom::value_type& __t) \ - { \ - typedef typename _Dom::value_type _Tp; \ - typedef _BinClos<__##_Fun,_Expr,_Constant,_Dom,_Tp> _Closure; \ - return _Expr<_Closure,_Tp>(_Closure(__e(), __t)); \ - } \ - \ - template<class _Dom> \ - inline _Expr<_BinClos<__##_Fun,_Constant,_Expr, \ - typename _Dom::value_type,_Dom>, \ - typename _Dom::value_type> \ - _Fun(const typename _Dom::value_type& __t, \ - const _Expr<_Dom,typename _Dom::value_type>& __e) \ - { \ - typedef typename _Dom::value_type _Tp; \ - typedef _BinClos<__##_Fun, _Constant,_Expr,_Tp,_Dom> _Closure; \ - return _Expr<_Closure,_Tp>(_Closure(__t, __e())); \ - } \ - \ - template<typename _Tp> \ - inline _Expr<_BinClos<__##_Fun,_ValArray,_ValArray,_Tp,_Tp>, _Tp> \ - _Fun(const valarray<_Tp>& __v, const valarray<_Tp>& __w) \ - { \ - typedef _BinClos<__##_Fun,_ValArray,_ValArray,_Tp,_Tp> _Closure; \ - return _Expr<_Closure,_Tp>(_Closure(__v, __w)); \ - } \ - \ - template<typename _Tp> \ - inline _Expr<_BinClos<__##_Fun,_ValArray,_Constant,_Tp,_Tp>,_Tp> \ - _Fun(const valarray<_Tp>& __v, const _Tp& __t) \ - { \ - typedef _BinClos<__##_Fun,_ValArray,_Constant,_Tp,_Tp> _Closure; \ - return _Expr<_Closure,_Tp>(_Closure(__v, __t)); \ - } \ - \ - template<typename _Tp> \ - inline _Expr<_BinClos<__##_Fun,_Constant,_ValArray,_Tp,_Tp>,_Tp> \ - _Fun(const _Tp& __t, const valarray<_Tp>& __v) \ - { \ - typedef _BinClos<__##_Fun,_Constant,_ValArray,_Tp,_Tp> _Closure; \ - return _Expr<_Closure,_Tp>(_Closure(__t, __v)); \ - } - -_DEFINE_EXPR_BINARY_FUNCTION(atan2) -_DEFINE_EXPR_BINARY_FUNCTION(pow) - -#undef _DEFINE_EXPR_BINARY_FUNCTION - -} // std:: - - -#endif /* _CPP_VALARRAY_META_H */ - -// Local Variables: -// mode:c++ -// End: diff --git a/contrib/libstdc++/include/ext/stl_hash_fun.h b/contrib/libstdc++/include/ext/stl_hash_fun.h deleted file mode 100644 index 562fe7a..0000000 --- a/contrib/libstdc++/include/ext/stl_hash_fun.h +++ /dev/null @@ -1,126 +0,0 @@ -// 'struct hash' from SGI -*- C++ -*- - -// Copyright (C) 2001, 2002 Free Software Foundation, Inc. -// -// This file is part of the GNU ISO C++ Library. This library is free -// software; you can redistribute it and/or modify it under the -// terms of the GNU General Public License as published by the -// Free Software Foundation; either version 2, or (at your option) -// any later version. - -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. - -// You should have received a copy of the GNU General Public License along -// with this library; see the file COPYING. If not, write to the Free -// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, -// USA. - -// As a special exception, you may use this file as part of a free software -// library without restriction. Specifically, if other files instantiate -// templates or use macros or inline functions from this file, or you compile -// this file and link it with other files to produce an executable, this -// file does not by itself cause the resulting executable to be covered by -// the GNU General Public License. This exception does not however -// invalidate any other reasons why the executable file might be covered by -// the GNU General Public License. - -/* - * Copyright (c) 1996-1998 - * Silicon Graphics Computer Systems, Inc. - * - * Permission to use, copy, modify, distribute and sell this software - * and its documentation for any purpose is hereby granted without fee, - * provided that the above copyright notice appear in all copies and - * that both that copyright notice and this permission notice appear - * in supporting documentation. Silicon Graphics makes no - * representations about the suitability of this software for any - * purpose. It is provided "as is" without express or implied warranty. - * - * - * Copyright (c) 1994 - * Hewlett-Packard Company - * - * Permission to use, copy, modify, distribute and sell this software - * and its documentation for any purpose is hereby granted without fee, - * provided that the above copyright notice appear in all copies and - * that both that copyright notice and this permission notice appear - * in supporting documentation. Hewlett-Packard Company makes no - * representations about the suitability of this software for any - * purpose. It is provided "as is" without express or implied warranty. - * - */ - -/** @file ext/stl_hash_fun.h - * This file is a GNU extension to the Standard C++ Library (possibly - * containing extensions from the HP/SGI STL subset). You should only - * include this header if you are using GCC 3 or later. - */ - -#ifndef _CPP_BITS_STL_HASH_FUN_H -#define _CPP_BITS_STL_HASH_FUN_H 1 - -#include <cstddef> - -namespace __gnu_cxx -{ -using std::size_t; - -template <class _Key> struct hash { }; - -inline size_t __stl_hash_string(const char* __s) -{ - unsigned long __h = 0; - for ( ; *__s; ++__s) - __h = 5*__h + *__s; - - return size_t(__h); -} - -template<> struct hash<char*> -{ - size_t operator()(const char* __s) const { return __stl_hash_string(__s); } -}; - -template<> struct hash<const char*> -{ - size_t operator()(const char* __s) const { return __stl_hash_string(__s); } -}; - -template<> struct hash<char> { - size_t operator()(char __x) const { return __x; } -}; -template<> struct hash<unsigned char> { - size_t operator()(unsigned char __x) const { return __x; } -}; -template<> struct hash<signed char> { - size_t operator()(unsigned char __x) const { return __x; } -}; -template<> struct hash<short> { - size_t operator()(short __x) const { return __x; } -}; -template<> struct hash<unsigned short> { - size_t operator()(unsigned short __x) const { return __x; } -}; -template<> struct hash<int> { - size_t operator()(int __x) const { return __x; } -}; -template<> struct hash<unsigned int> { - size_t operator()(unsigned int __x) const { return __x; } -}; -template<> struct hash<long> { - size_t operator()(long __x) const { return __x; } -}; -template<> struct hash<unsigned long> { - size_t operator()(unsigned long __x) const { return __x; } -}; - -} // namespace __gnu_cxx - -#endif /* _CPP_BITS_STL_HASH_FUN_H */ - -// Local Variables: -// mode:C++ -// End: diff --git a/contrib/libstdc++/include/ext/stl_hashtable.h b/contrib/libstdc++/include/ext/stl_hashtable.h deleted file mode 100644 index b41c821..0000000 --- a/contrib/libstdc++/include/ext/stl_hashtable.h +++ /dev/null @@ -1,996 +0,0 @@ -// Hashtable implementation used by containers -*- C++ -*- - -// Copyright (C) 2001, 2002 Free Software Foundation, Inc. -// -// This file is part of the GNU ISO C++ Library. This library is free -// software; you can redistribute it and/or modify it under the -// terms of the GNU General Public License as published by the -// Free Software Foundation; either version 2, or (at your option) -// any later version. - -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. - -// You should have received a copy of the GNU General Public License along -// with this library; see the file COPYING. If not, write to the Free -// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, -// USA. - -// As a special exception, you may use this file as part of a free software -// library without restriction. Specifically, if other files instantiate -// templates or use macros or inline functions from this file, or you compile -// this file and link it with other files to produce an executable, this -// file does not by itself cause the resulting executable to be covered by -// the GNU General Public License. This exception does not however -// invalidate any other reasons why the executable file might be covered by -// the GNU General Public License. - -/* - * Copyright (c) 1996,1997 - * Silicon Graphics Computer Systems, Inc. - * - * Permission to use, copy, modify, distribute and sell this software - * and its documentation for any purpose is hereby granted without fee, - * provided that the above copyright notice appear in all copies and - * that both that copyright notice and this permission notice appear - * in supporting documentation. Silicon Graphics makes no - * representations about the suitability of this software for any - * purpose. It is provided "as is" without express or implied warranty. - * - * - * Copyright (c) 1994 - * Hewlett-Packard Company - * - * Permission to use, copy, modify, distribute and sell this software - * and its documentation for any purpose is hereby granted without fee, - * provided that the above copyright notice appear in all copies and - * that both that copyright notice and this permission notice appear - * in supporting documentation. Hewlett-Packard Company makes no - * representations about the suitability of this software for any - * purpose. It is provided "as is" without express or implied warranty. - * - */ - -/** @file ext/stl_hashtable.h - * This file is a GNU extension to the Standard C++ Library (possibly - * containing extensions from the HP/SGI STL subset). You should only - * include this header if you are using GCC 3 or later. - */ - -#ifndef __SGI_STL_INTERNAL_HASHTABLE_H -#define __SGI_STL_INTERNAL_HASHTABLE_H - -// Hashtable class, used to implement the hashed associative containers -// hash_set, hash_map, hash_multiset, and hash_multimap. - -#include <vector> -#include <iterator> -#include <bits/stl_algo.h> -#include <bits/stl_function.h> -#include <ext/stl_hash_fun.h> - -namespace __gnu_cxx -{ -using std::size_t; -using std::ptrdiff_t; -using std::forward_iterator_tag; -using std::input_iterator_tag; -using std::_Alloc_traits; -using std::_Construct; -using std::_Destroy; -using std::distance; -using std::vector; -using std::pair; -using std::__iterator_category; - -template <class _Val> -struct _Hashtable_node -{ - _Hashtable_node* _M_next; - _Val _M_val; -}; - -template <class _Val, class _Key, class _HashFcn, - class _ExtractKey, class _EqualKey, class _Alloc = std::__alloc> -class hashtable; - -template <class _Val, class _Key, class _HashFcn, - class _ExtractKey, class _EqualKey, class _Alloc> -struct _Hashtable_iterator; - -template <class _Val, class _Key, class _HashFcn, - class _ExtractKey, class _EqualKey, class _Alloc> -struct _Hashtable_const_iterator; - -template <class _Val, class _Key, class _HashFcn, - class _ExtractKey, class _EqualKey, class _Alloc> -struct _Hashtable_iterator { - typedef hashtable<_Val,_Key,_HashFcn,_ExtractKey,_EqualKey,_Alloc> - _Hashtable; - typedef _Hashtable_iterator<_Val, _Key, _HashFcn, - _ExtractKey, _EqualKey, _Alloc> - iterator; - typedef _Hashtable_const_iterator<_Val, _Key, _HashFcn, - _ExtractKey, _EqualKey, _Alloc> - const_iterator; - typedef _Hashtable_node<_Val> _Node; - - typedef forward_iterator_tag iterator_category; - typedef _Val value_type; - typedef ptrdiff_t difference_type; - typedef size_t size_type; - typedef _Val& reference; - typedef _Val* pointer; - - _Node* _M_cur; - _Hashtable* _M_ht; - - _Hashtable_iterator(_Node* __n, _Hashtable* __tab) - : _M_cur(__n), _M_ht(__tab) {} - _Hashtable_iterator() {} - reference operator*() const { return _M_cur->_M_val; } - pointer operator->() const { return &(operator*()); } - iterator& operator++(); - iterator operator++(int); - bool operator==(const iterator& __it) const - { return _M_cur == __it._M_cur; } - bool operator!=(const iterator& __it) const - { return _M_cur != __it._M_cur; } -}; - - -template <class _Val, class _Key, class _HashFcn, - class _ExtractKey, class _EqualKey, class _Alloc> -struct _Hashtable_const_iterator { - typedef hashtable<_Val,_Key,_HashFcn,_ExtractKey,_EqualKey,_Alloc> - _Hashtable; - typedef _Hashtable_iterator<_Val,_Key,_HashFcn, - _ExtractKey,_EqualKey,_Alloc> - iterator; - typedef _Hashtable_const_iterator<_Val, _Key, _HashFcn, - _ExtractKey, _EqualKey, _Alloc> - const_iterator; - typedef _Hashtable_node<_Val> _Node; - - typedef forward_iterator_tag iterator_category; - typedef _Val value_type; - typedef ptrdiff_t difference_type; - typedef size_t size_type; - typedef const _Val& reference; - typedef const _Val* pointer; - - const _Node* _M_cur; - const _Hashtable* _M_ht; - - _Hashtable_const_iterator(const _Node* __n, const _Hashtable* __tab) - : _M_cur(__n), _M_ht(__tab) {} - _Hashtable_const_iterator() {} - _Hashtable_const_iterator(const iterator& __it) - : _M_cur(__it._M_cur), _M_ht(__it._M_ht) {} - reference operator*() const { return _M_cur->_M_val; } - pointer operator->() const { return &(operator*()); } - const_iterator& operator++(); - const_iterator operator++(int); - bool operator==(const const_iterator& __it) const - { return _M_cur == __it._M_cur; } - bool operator!=(const const_iterator& __it) const - { return _M_cur != __it._M_cur; } -}; - -// Note: assumes long is at least 32 bits. -enum { __stl_num_primes = 28 }; - -static const unsigned long __stl_prime_list[__stl_num_primes] = -{ - 53ul, 97ul, 193ul, 389ul, 769ul, - 1543ul, 3079ul, 6151ul, 12289ul, 24593ul, - 49157ul, 98317ul, 196613ul, 393241ul, 786433ul, - 1572869ul, 3145739ul, 6291469ul, 12582917ul, 25165843ul, - 50331653ul, 100663319ul, 201326611ul, 402653189ul, 805306457ul, - 1610612741ul, 3221225473ul, 4294967291ul -}; - -inline unsigned long __stl_next_prime(unsigned long __n) -{ - const unsigned long* __first = __stl_prime_list; - const unsigned long* __last = __stl_prime_list + (int)__stl_num_primes; - const unsigned long* pos = std::lower_bound(__first, __last, __n); - return pos == __last ? *(__last - 1) : *pos; -} - -// Forward declaration of operator==. - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -class hashtable; - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -bool operator==(const hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>& __ht1, - const hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>& __ht2); - - -// Hashtables handle allocators a bit differently than other containers -// do. If we're using standard-conforming allocators, then a hashtable -// unconditionally has a member variable to hold its allocator, even if -// it so happens that all instances of the allocator type are identical. -// This is because, for hashtables, this extra storage is negligible. -// Additionally, a base class wouldn't serve any other purposes; it -// wouldn't, for example, simplify the exception-handling code. - -template <class _Val, class _Key, class _HashFcn, - class _ExtractKey, class _EqualKey, class _Alloc> -class hashtable { -public: - typedef _Key key_type; - typedef _Val value_type; - typedef _HashFcn hasher; - typedef _EqualKey key_equal; - - typedef size_t size_type; - typedef ptrdiff_t difference_type; - typedef value_type* pointer; - typedef const value_type* const_pointer; - typedef value_type& reference; - typedef const value_type& const_reference; - - hasher hash_funct() const { return _M_hash; } - key_equal key_eq() const { return _M_equals; } - -private: - typedef _Hashtable_node<_Val> _Node; - -public: - typedef typename _Alloc_traits<_Val,_Alloc>::allocator_type allocator_type; - allocator_type get_allocator() const { return _M_node_allocator; } -private: - typename _Alloc_traits<_Node, _Alloc>::allocator_type _M_node_allocator; - _Node* _M_get_node() { return _M_node_allocator.allocate(1); } - void _M_put_node(_Node* __p) { _M_node_allocator.deallocate(__p, 1); } - -private: - hasher _M_hash; - key_equal _M_equals; - _ExtractKey _M_get_key; - vector<_Node*,_Alloc> _M_buckets; - size_type _M_num_elements; - -public: - typedef _Hashtable_iterator<_Val,_Key,_HashFcn,_ExtractKey,_EqualKey,_Alloc> - iterator; - typedef _Hashtable_const_iterator<_Val,_Key,_HashFcn,_ExtractKey,_EqualKey, - _Alloc> - const_iterator; - - friend struct - _Hashtable_iterator<_Val,_Key,_HashFcn,_ExtractKey,_EqualKey,_Alloc>; - friend struct - _Hashtable_const_iterator<_Val,_Key,_HashFcn,_ExtractKey,_EqualKey,_Alloc>; - -public: - hashtable(size_type __n, - const _HashFcn& __hf, - const _EqualKey& __eql, - const _ExtractKey& __ext, - const allocator_type& __a = allocator_type()) - : _M_node_allocator(__a), - _M_hash(__hf), - _M_equals(__eql), - _M_get_key(__ext), - _M_buckets(__a), - _M_num_elements(0) - { - _M_initialize_buckets(__n); - } - - hashtable(size_type __n, - const _HashFcn& __hf, - const _EqualKey& __eql, - const allocator_type& __a = allocator_type()) - : _M_node_allocator(__a), - _M_hash(__hf), - _M_equals(__eql), - _M_get_key(_ExtractKey()), - _M_buckets(__a), - _M_num_elements(0) - { - _M_initialize_buckets(__n); - } - - hashtable(const hashtable& __ht) - : _M_node_allocator(__ht.get_allocator()), - _M_hash(__ht._M_hash), - _M_equals(__ht._M_equals), - _M_get_key(__ht._M_get_key), - _M_buckets(__ht.get_allocator()), - _M_num_elements(0) - { - _M_copy_from(__ht); - } - - hashtable& operator= (const hashtable& __ht) - { - if (&__ht != this) { - clear(); - _M_hash = __ht._M_hash; - _M_equals = __ht._M_equals; - _M_get_key = __ht._M_get_key; - _M_copy_from(__ht); - } - return *this; - } - - ~hashtable() { clear(); } - - size_type size() const { return _M_num_elements; } - size_type max_size() const { return size_type(-1); } - bool empty() const { return size() == 0; } - - void swap(hashtable& __ht) - { - std::swap(_M_hash, __ht._M_hash); - std::swap(_M_equals, __ht._M_equals); - std::swap(_M_get_key, __ht._M_get_key); - _M_buckets.swap(__ht._M_buckets); - std::swap(_M_num_elements, __ht._M_num_elements); - } - - iterator begin() - { - for (size_type __n = 0; __n < _M_buckets.size(); ++__n) - if (_M_buckets[__n]) - return iterator(_M_buckets[__n], this); - return end(); - } - - iterator end() { return iterator(0, this); } - - const_iterator begin() const - { - for (size_type __n = 0; __n < _M_buckets.size(); ++__n) - if (_M_buckets[__n]) - return const_iterator(_M_buckets[__n], this); - return end(); - } - - const_iterator end() const { return const_iterator(0, this); } - - template <class _Vl, class _Ky, class _HF, class _Ex, class _Eq, class _Al> - friend bool operator== (const hashtable<_Vl, _Ky, _HF, _Ex, _Eq, _Al>&, - const hashtable<_Vl, _Ky, _HF, _Ex, _Eq, _Al>&); -public: - - size_type bucket_count() const { return _M_buckets.size(); } - - size_type max_bucket_count() const - { return __stl_prime_list[(int)__stl_num_primes - 1]; } - - size_type elems_in_bucket(size_type __bucket) const - { - size_type __result = 0; - for (_Node* __cur = _M_buckets[__bucket]; __cur; __cur = __cur->_M_next) - __result += 1; - return __result; - } - - pair<iterator, bool> insert_unique(const value_type& __obj) - { - resize(_M_num_elements + 1); - return insert_unique_noresize(__obj); - } - - iterator insert_equal(const value_type& __obj) - { - resize(_M_num_elements + 1); - return insert_equal_noresize(__obj); - } - - pair<iterator, bool> insert_unique_noresize(const value_type& __obj); - iterator insert_equal_noresize(const value_type& __obj); - - template <class _InputIterator> - void insert_unique(_InputIterator __f, _InputIterator __l) - { - insert_unique(__f, __l, __iterator_category(__f)); - } - - template <class _InputIterator> - void insert_equal(_InputIterator __f, _InputIterator __l) - { - insert_equal(__f, __l, __iterator_category(__f)); - } - - template <class _InputIterator> - void insert_unique(_InputIterator __f, _InputIterator __l, - input_iterator_tag) - { - for ( ; __f != __l; ++__f) - insert_unique(*__f); - } - - template <class _InputIterator> - void insert_equal(_InputIterator __f, _InputIterator __l, - input_iterator_tag) - { - for ( ; __f != __l; ++__f) - insert_equal(*__f); - } - - template <class _ForwardIterator> - void insert_unique(_ForwardIterator __f, _ForwardIterator __l, - forward_iterator_tag) - { - size_type __n = distance(__f, __l); - resize(_M_num_elements + __n); - for ( ; __n > 0; --__n, ++__f) - insert_unique_noresize(*__f); - } - - template <class _ForwardIterator> - void insert_equal(_ForwardIterator __f, _ForwardIterator __l, - forward_iterator_tag) - { - size_type __n = distance(__f, __l); - resize(_M_num_elements + __n); - for ( ; __n > 0; --__n, ++__f) - insert_equal_noresize(*__f); - } - - reference find_or_insert(const value_type& __obj); - - iterator find(const key_type& __key) - { - size_type __n = _M_bkt_num_key(__key); - _Node* __first; - for ( __first = _M_buckets[__n]; - __first && !_M_equals(_M_get_key(__first->_M_val), __key); - __first = __first->_M_next) - {} - return iterator(__first, this); - } - - const_iterator find(const key_type& __key) const - { - size_type __n = _M_bkt_num_key(__key); - const _Node* __first; - for ( __first = _M_buckets[__n]; - __first && !_M_equals(_M_get_key(__first->_M_val), __key); - __first = __first->_M_next) - {} - return const_iterator(__first, this); - } - - size_type count(const key_type& __key) const - { - const size_type __n = _M_bkt_num_key(__key); - size_type __result = 0; - - for (const _Node* __cur = _M_buckets[__n]; __cur; __cur = __cur->_M_next) - if (_M_equals(_M_get_key(__cur->_M_val), __key)) - ++__result; - return __result; - } - - pair<iterator, iterator> - equal_range(const key_type& __key); - - pair<const_iterator, const_iterator> - equal_range(const key_type& __key) const; - - size_type erase(const key_type& __key); - void erase(const iterator& __it); - void erase(iterator __first, iterator __last); - - void erase(const const_iterator& __it); - void erase(const_iterator __first, const_iterator __last); - - void resize(size_type __num_elements_hint); - void clear(); - -private: - size_type _M_next_size(size_type __n) const - { return __stl_next_prime(__n); } - - void _M_initialize_buckets(size_type __n) - { - const size_type __n_buckets = _M_next_size(__n); - _M_buckets.reserve(__n_buckets); - _M_buckets.insert(_M_buckets.end(), __n_buckets, (_Node*) 0); - _M_num_elements = 0; - } - - size_type _M_bkt_num_key(const key_type& __key) const - { - return _M_bkt_num_key(__key, _M_buckets.size()); - } - - size_type _M_bkt_num(const value_type& __obj) const - { - return _M_bkt_num_key(_M_get_key(__obj)); - } - - size_type _M_bkt_num_key(const key_type& __key, size_t __n) const - { - return _M_hash(__key) % __n; - } - - size_type _M_bkt_num(const value_type& __obj, size_t __n) const - { - return _M_bkt_num_key(_M_get_key(__obj), __n); - } - - _Node* _M_new_node(const value_type& __obj) - { - _Node* __n = _M_get_node(); - __n->_M_next = 0; - try { - _Construct(&__n->_M_val, __obj); - return __n; - } - catch(...) - { - _M_put_node(__n); - __throw_exception_again; - } - } - - void _M_delete_node(_Node* __n) - { - _Destroy(&__n->_M_val); - _M_put_node(__n); - } - - void _M_erase_bucket(const size_type __n, _Node* __first, _Node* __last); - void _M_erase_bucket(const size_type __n, _Node* __last); - - void _M_copy_from(const hashtable& __ht); - -}; - -template <class _Val, class _Key, class _HF, class _ExK, class _EqK, - class _All> -_Hashtable_iterator<_Val,_Key,_HF,_ExK,_EqK,_All>& -_Hashtable_iterator<_Val,_Key,_HF,_ExK,_EqK,_All>::operator++() -{ - const _Node* __old = _M_cur; - _M_cur = _M_cur->_M_next; - if (!_M_cur) { - size_type __bucket = _M_ht->_M_bkt_num(__old->_M_val); - while (!_M_cur && ++__bucket < _M_ht->_M_buckets.size()) - _M_cur = _M_ht->_M_buckets[__bucket]; - } - return *this; -} - -template <class _Val, class _Key, class _HF, class _ExK, class _EqK, - class _All> -inline _Hashtable_iterator<_Val,_Key,_HF,_ExK,_EqK,_All> -_Hashtable_iterator<_Val,_Key,_HF,_ExK,_EqK,_All>::operator++(int) -{ - iterator __tmp = *this; - ++*this; - return __tmp; -} - -template <class _Val, class _Key, class _HF, class _ExK, class _EqK, - class _All> -_Hashtable_const_iterator<_Val,_Key,_HF,_ExK,_EqK,_All>& -_Hashtable_const_iterator<_Val,_Key,_HF,_ExK,_EqK,_All>::operator++() -{ - const _Node* __old = _M_cur; - _M_cur = _M_cur->_M_next; - if (!_M_cur) { - size_type __bucket = _M_ht->_M_bkt_num(__old->_M_val); - while (!_M_cur && ++__bucket < _M_ht->_M_buckets.size()) - _M_cur = _M_ht->_M_buckets[__bucket]; - } - return *this; -} - -template <class _Val, class _Key, class _HF, class _ExK, class _EqK, - class _All> -inline _Hashtable_const_iterator<_Val,_Key,_HF,_ExK,_EqK,_All> -_Hashtable_const_iterator<_Val,_Key,_HF,_ExK,_EqK,_All>::operator++(int) -{ - const_iterator __tmp = *this; - ++*this; - return __tmp; -} - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -bool operator==(const hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>& __ht1, - const hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>& __ht2) -{ - typedef typename hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>::_Node _Node; - if (__ht1._M_buckets.size() != __ht2._M_buckets.size()) - return false; - for (size_t __n = 0; __n < __ht1._M_buckets.size(); ++__n) { - _Node* __cur1 = __ht1._M_buckets[__n]; - _Node* __cur2 = __ht2._M_buckets[__n]; - // Check same length of lists - for ( ; __cur1 && __cur2; - __cur1 = __cur1->_M_next, __cur2 = __cur2->_M_next) - {} - if (__cur1 || __cur2) - return false; - // Now check one's elements are in the other - for (__cur1 = __ht1._M_buckets[__n] ; __cur1; __cur1 = __cur1->_M_next) - { - bool _found__cur1 = false; - for (_Node* __cur2 = __ht2._M_buckets[__n]; - __cur2; __cur2 = __cur2->_M_next) - { - if (__cur1->_M_val == __cur2->_M_val) - { - _found__cur1 = true; - break; - } - } - if (!_found__cur1) - return false; - } - } - return true; -} - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -inline bool operator!=(const hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>& __ht1, - const hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>& __ht2) { - return !(__ht1 == __ht2); -} - -template <class _Val, class _Key, class _HF, class _Extract, class _EqKey, - class _All> -inline void swap(hashtable<_Val, _Key, _HF, _Extract, _EqKey, _All>& __ht1, - hashtable<_Val, _Key, _HF, _Extract, _EqKey, _All>& __ht2) { - __ht1.swap(__ht2); -} - - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -pair<typename hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>::iterator, bool> -hashtable<_Val,_Key,_HF,_Ex,_Eq,_All> - ::insert_unique_noresize(const value_type& __obj) -{ - const size_type __n = _M_bkt_num(__obj); - _Node* __first = _M_buckets[__n]; - - for (_Node* __cur = __first; __cur; __cur = __cur->_M_next) - if (_M_equals(_M_get_key(__cur->_M_val), _M_get_key(__obj))) - return pair<iterator, bool>(iterator(__cur, this), false); - - _Node* __tmp = _M_new_node(__obj); - __tmp->_M_next = __first; - _M_buckets[__n] = __tmp; - ++_M_num_elements; - return pair<iterator, bool>(iterator(__tmp, this), true); -} - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -typename hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>::iterator -hashtable<_Val,_Key,_HF,_Ex,_Eq,_All> - ::insert_equal_noresize(const value_type& __obj) -{ - const size_type __n = _M_bkt_num(__obj); - _Node* __first = _M_buckets[__n]; - - for (_Node* __cur = __first; __cur; __cur = __cur->_M_next) - if (_M_equals(_M_get_key(__cur->_M_val), _M_get_key(__obj))) { - _Node* __tmp = _M_new_node(__obj); - __tmp->_M_next = __cur->_M_next; - __cur->_M_next = __tmp; - ++_M_num_elements; - return iterator(__tmp, this); - } - - _Node* __tmp = _M_new_node(__obj); - __tmp->_M_next = __first; - _M_buckets[__n] = __tmp; - ++_M_num_elements; - return iterator(__tmp, this); -} - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -typename hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>::reference -hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>::find_or_insert(const value_type& __obj) -{ - resize(_M_num_elements + 1); - - size_type __n = _M_bkt_num(__obj); - _Node* __first = _M_buckets[__n]; - - for (_Node* __cur = __first; __cur; __cur = __cur->_M_next) - if (_M_equals(_M_get_key(__cur->_M_val), _M_get_key(__obj))) - return __cur->_M_val; - - _Node* __tmp = _M_new_node(__obj); - __tmp->_M_next = __first; - _M_buckets[__n] = __tmp; - ++_M_num_elements; - return __tmp->_M_val; -} - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -pair<typename hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>::iterator, - typename hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>::iterator> -hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>::equal_range(const key_type& __key) -{ - typedef pair<iterator, iterator> _Pii; - const size_type __n = _M_bkt_num_key(__key); - - for (_Node* __first = _M_buckets[__n]; __first; __first = __first->_M_next) - if (_M_equals(_M_get_key(__first->_M_val), __key)) { - for (_Node* __cur = __first->_M_next; __cur; __cur = __cur->_M_next) - if (!_M_equals(_M_get_key(__cur->_M_val), __key)) - return _Pii(iterator(__first, this), iterator(__cur, this)); - for (size_type __m = __n + 1; __m < _M_buckets.size(); ++__m) - if (_M_buckets[__m]) - return _Pii(iterator(__first, this), - iterator(_M_buckets[__m], this)); - return _Pii(iterator(__first, this), end()); - } - return _Pii(end(), end()); -} - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -pair<typename hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>::const_iterator, - typename hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>::const_iterator> -hashtable<_Val,_Key,_HF,_Ex,_Eq,_All> - ::equal_range(const key_type& __key) const -{ - typedef pair<const_iterator, const_iterator> _Pii; - const size_type __n = _M_bkt_num_key(__key); - - for (const _Node* __first = _M_buckets[__n] ; - __first; - __first = __first->_M_next) { - if (_M_equals(_M_get_key(__first->_M_val), __key)) { - for (const _Node* __cur = __first->_M_next; - __cur; - __cur = __cur->_M_next) - if (!_M_equals(_M_get_key(__cur->_M_val), __key)) - return _Pii(const_iterator(__first, this), - const_iterator(__cur, this)); - for (size_type __m = __n + 1; __m < _M_buckets.size(); ++__m) - if (_M_buckets[__m]) - return _Pii(const_iterator(__first, this), - const_iterator(_M_buckets[__m], this)); - return _Pii(const_iterator(__first, this), end()); - } - } - return _Pii(end(), end()); -} - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -typename hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>::size_type -hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>::erase(const key_type& __key) -{ - const size_type __n = _M_bkt_num_key(__key); - _Node* __first = _M_buckets[__n]; - size_type __erased = 0; - - if (__first) { - _Node* __cur = __first; - _Node* __next = __cur->_M_next; - while (__next) { - if (_M_equals(_M_get_key(__next->_M_val), __key)) { - __cur->_M_next = __next->_M_next; - _M_delete_node(__next); - __next = __cur->_M_next; - ++__erased; - --_M_num_elements; - } - else { - __cur = __next; - __next = __cur->_M_next; - } - } - if (_M_equals(_M_get_key(__first->_M_val), __key)) { - _M_buckets[__n] = __first->_M_next; - _M_delete_node(__first); - ++__erased; - --_M_num_elements; - } - } - return __erased; -} - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -void hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>::erase(const iterator& __it) -{ - _Node* __p = __it._M_cur; - if (__p) { - const size_type __n = _M_bkt_num(__p->_M_val); - _Node* __cur = _M_buckets[__n]; - - if (__cur == __p) { - _M_buckets[__n] = __cur->_M_next; - _M_delete_node(__cur); - --_M_num_elements; - } - else { - _Node* __next = __cur->_M_next; - while (__next) { - if (__next == __p) { - __cur->_M_next = __next->_M_next; - _M_delete_node(__next); - --_M_num_elements; - break; - } - else { - __cur = __next; - __next = __cur->_M_next; - } - } - } - } -} - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -void hashtable<_Val,_Key,_HF,_Ex,_Eq,_All> - ::erase(iterator __first, iterator __last) -{ - size_type __f_bucket = __first._M_cur ? - _M_bkt_num(__first._M_cur->_M_val) : _M_buckets.size(); - size_type __l_bucket = __last._M_cur ? - _M_bkt_num(__last._M_cur->_M_val) : _M_buckets.size(); - - if (__first._M_cur == __last._M_cur) - return; - else if (__f_bucket == __l_bucket) - _M_erase_bucket(__f_bucket, __first._M_cur, __last._M_cur); - else { - _M_erase_bucket(__f_bucket, __first._M_cur, 0); - for (size_type __n = __f_bucket + 1; __n < __l_bucket; ++__n) - _M_erase_bucket(__n, 0); - if (__l_bucket != _M_buckets.size()) - _M_erase_bucket(__l_bucket, __last._M_cur); - } -} - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -inline void -hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>::erase(const_iterator __first, - const_iterator __last) -{ - erase(iterator(const_cast<_Node*>(__first._M_cur), - const_cast<hashtable*>(__first._M_ht)), - iterator(const_cast<_Node*>(__last._M_cur), - const_cast<hashtable*>(__last._M_ht))); -} - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -inline void -hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>::erase(const const_iterator& __it) -{ - erase(iterator(const_cast<_Node*>(__it._M_cur), - const_cast<hashtable*>(__it._M_ht))); -} - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -void hashtable<_Val,_Key,_HF,_Ex,_Eq,_All> - ::resize(size_type __num_elements_hint) -{ - const size_type __old_n = _M_buckets.size(); - if (__num_elements_hint > __old_n) { - const size_type __n = _M_next_size(__num_elements_hint); - if (__n > __old_n) { - vector<_Node*, _All> __tmp(__n, (_Node*)(0), - _M_buckets.get_allocator()); - try { - for (size_type __bucket = 0; __bucket < __old_n; ++__bucket) { - _Node* __first = _M_buckets[__bucket]; - while (__first) { - size_type __new_bucket = _M_bkt_num(__first->_M_val, __n); - _M_buckets[__bucket] = __first->_M_next; - __first->_M_next = __tmp[__new_bucket]; - __tmp[__new_bucket] = __first; - __first = _M_buckets[__bucket]; - } - } - _M_buckets.swap(__tmp); - } - catch(...) { - for (size_type __bucket = 0; __bucket < __tmp.size(); ++__bucket) { - while (__tmp[__bucket]) { - _Node* __next = __tmp[__bucket]->_M_next; - _M_delete_node(__tmp[__bucket]); - __tmp[__bucket] = __next; - } - } - __throw_exception_again; - } - } - } -} - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -void hashtable<_Val,_Key,_HF,_Ex,_Eq,_All> - ::_M_erase_bucket(const size_type __n, _Node* __first, _Node* __last) -{ - _Node* __cur = _M_buckets[__n]; - if (__cur == __first) - _M_erase_bucket(__n, __last); - else { - _Node* __next; - for (__next = __cur->_M_next; - __next != __first; - __cur = __next, __next = __cur->_M_next) - ; - while (__next != __last) { - __cur->_M_next = __next->_M_next; - _M_delete_node(__next); - __next = __cur->_M_next; - --_M_num_elements; - } - } -} - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -void hashtable<_Val,_Key,_HF,_Ex,_Eq,_All> - ::_M_erase_bucket(const size_type __n, _Node* __last) -{ - _Node* __cur = _M_buckets[__n]; - while (__cur != __last) { - _Node* __next = __cur->_M_next; - _M_delete_node(__cur); - __cur = __next; - _M_buckets[__n] = __cur; - --_M_num_elements; - } -} - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -void hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>::clear() -{ - for (size_type __i = 0; __i < _M_buckets.size(); ++__i) { - _Node* __cur = _M_buckets[__i]; - while (__cur != 0) { - _Node* __next = __cur->_M_next; - _M_delete_node(__cur); - __cur = __next; - } - _M_buckets[__i] = 0; - } - _M_num_elements = 0; -} - - -template <class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All> -void hashtable<_Val,_Key,_HF,_Ex,_Eq,_All> - ::_M_copy_from(const hashtable& __ht) -{ - _M_buckets.clear(); - _M_buckets.reserve(__ht._M_buckets.size()); - _M_buckets.insert(_M_buckets.end(), __ht._M_buckets.size(), (_Node*) 0); - try { - for (size_type __i = 0; __i < __ht._M_buckets.size(); ++__i) { - const _Node* __cur = __ht._M_buckets[__i]; - if (__cur) { - _Node* __local_copy = _M_new_node(__cur->_M_val); - _M_buckets[__i] = __local_copy; - - for (_Node* __next = __cur->_M_next; - __next; - __cur = __next, __next = __cur->_M_next) { - __local_copy->_M_next = _M_new_node(__next->_M_val); - __local_copy = __local_copy->_M_next; - } - } - } - _M_num_elements = __ht._M_num_elements; - } - catch(...) - { - clear(); - __throw_exception_again; - } -} - -} // namespace __gnu_cxx - -#endif /* __SGI_STL_INTERNAL_HASHTABLE_H */ - -// Local Variables: -// mode:C++ -// End: diff --git a/contrib/libstdc++/include/ext/stl_rope.h b/contrib/libstdc++/include/ext/stl_rope.h deleted file mode 100644 index eae2613..0000000 --- a/contrib/libstdc++/include/ext/stl_rope.h +++ /dev/null @@ -1,2503 +0,0 @@ -// SGI's rope implementation -*- C++ -*- - -// Copyright (C) 2001, 2002 Free Software Foundation, Inc. -// -// This file is part of the GNU ISO C++ Library. This library is free -// software; you can redistribute it and/or modify it under the -// terms of the GNU General Public License as published by the -// Free Software Foundation; either version 2, or (at your option) -// any later version. - -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. - -// You should have received a copy of the GNU General Public License along -// with this library; see the file COPYING. If not, write to the Free -// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, -// USA. - -// As a special exception, you may use this file as part of a free software -// library without restriction. Specifically, if other files instantiate -// templates or use macros or inline functions from this file, or you compile -// this file and link it with other files to produce an executable, this -// file does not by itself cause the resulting executable to be covered by -// the GNU General Public License. This exception does not however -// invalidate any other reasons why the executable file might be covered by -// the GNU General Public License. - -/* - * Copyright (c) 1997-1998 - * Silicon Graphics Computer Systems, Inc. - * - * Permission to use, copy, modify, distribute and sell this software - * and its documentation for any purpose is hereby granted without fee, - * provided that the above copyright notice appear in all copies and - * that both that copyright notice and this permission notice appear - * in supporting documentation. Silicon Graphics makes no - * representations about the suitability of this software for any - * purpose. It is provided "as is" without express or implied warranty. - */ - -/** @file ext/stl_rope.h - * This file is a GNU extension to the Standard C++ Library (possibly - * containing extensions from the HP/SGI STL subset). You should only - * include this header if you are using GCC 3 or later. - */ - -// rope<_CharT,_Alloc> is a sequence of _CharT. -// Ropes appear to be mutable, but update operations -// really copy enough of the data structure to leave the original -// valid. Thus ropes can be logically copied by just copying -// a pointer value. - -#ifndef __SGI_STL_INTERNAL_ROPE_H -# define __SGI_STL_INTERNAL_ROPE_H - -# ifdef __GC -# define __GC_CONST const -# else -# include <bits/stl_threads.h> -# define __GC_CONST // constant except for deallocation -# endif - -#include <ext/memory> // For uninitialized_copy_n - -namespace __gnu_cxx -{ -using std::size_t; -using std::ptrdiff_t; -using std::allocator; -using std::iterator; -using std::reverse_iterator; -using std::_Alloc_traits; -using std::_Destroy; -using std::_Refcount_Base; - -// The _S_eos function is used for those functions that -// convert to/from C-like strings to detect the end of the string. - -// The end-of-C-string character. -// This is what the draft standard says it should be. -template <class _CharT> -inline _CharT _S_eos(_CharT*) { return _CharT(); } - -// Test for basic character types. -// For basic character types leaves having a trailing eos. -template <class _CharT> -inline bool _S_is_basic_char_type(_CharT*) { return false; } -template <class _CharT> -inline bool _S_is_one_byte_char_type(_CharT*) { return false; } - -inline bool _S_is_basic_char_type(char*) { return true; } -inline bool _S_is_one_byte_char_type(char*) { return true; } -inline bool _S_is_basic_char_type(wchar_t*) { return true; } - -// Store an eos iff _CharT is a basic character type. -// Do not reference _S_eos if it isn't. -template <class _CharT> -inline void _S_cond_store_eos(_CharT&) {} - -inline void _S_cond_store_eos(char& __c) { __c = 0; } -inline void _S_cond_store_eos(wchar_t& __c) { __c = 0; } - -// char_producers are logically functions that generate a section of -// a string. These can be convereted to ropes. The resulting rope -// invokes the char_producer on demand. This allows, for example, -// files to be viewed as ropes without reading the entire file. -template <class _CharT> -class char_producer { - public: - virtual ~char_producer() {}; - virtual void operator()(size_t __start_pos, size_t __len, - _CharT* __buffer) = 0; - // Buffer should really be an arbitrary output iterator. - // That way we could flatten directly into an ostream, etc. - // This is thoroughly impossible, since iterator types don't - // have runtime descriptions. -}; - -// Sequence buffers: -// -// Sequence must provide an append operation that appends an -// array to the sequence. Sequence buffers are useful only if -// appending an entire array is cheaper than appending element by element. -// This is true for many string representations. -// This should perhaps inherit from ostream<sequence::value_type> -// and be implemented correspondingly, so that they can be used -// for formatted. For the sake of portability, we don't do this yet. -// -// For now, sequence buffers behave as output iterators. But they also -// behave a little like basic_ostringstream<sequence::value_type> and a -// little like containers. - -template<class _Sequence, size_t _Buf_sz = 100> -class sequence_buffer : public iterator<std::output_iterator_tag,void,void,void,void> -{ - public: - typedef typename _Sequence::value_type value_type; - protected: - _Sequence* _M_prefix; - value_type _M_buffer[_Buf_sz]; - size_t _M_buf_count; - public: - void flush() { - _M_prefix->append(_M_buffer, _M_buffer + _M_buf_count); - _M_buf_count = 0; - } - ~sequence_buffer() { flush(); } - sequence_buffer() : _M_prefix(0), _M_buf_count(0) {} - sequence_buffer(const sequence_buffer& __x) { - _M_prefix = __x._M_prefix; - _M_buf_count = __x._M_buf_count; - copy(__x._M_buffer, __x._M_buffer + __x._M_buf_count, _M_buffer); - } - sequence_buffer(sequence_buffer& __x) { - __x.flush(); - _M_prefix = __x._M_prefix; - _M_buf_count = 0; - } - sequence_buffer(_Sequence& __s) : _M_prefix(&__s), _M_buf_count(0) {} - sequence_buffer& operator= (sequence_buffer& __x) { - __x.flush(); - _M_prefix = __x._M_prefix; - _M_buf_count = 0; - return *this; - } - sequence_buffer& operator= (const sequence_buffer& __x) { - _M_prefix = __x._M_prefix; - _M_buf_count = __x._M_buf_count; - copy(__x._M_buffer, __x._M_buffer + __x._M_buf_count, _M_buffer); - return *this; - } - void push_back(value_type __x) - { - if (_M_buf_count < _Buf_sz) { - _M_buffer[_M_buf_count] = __x; - ++_M_buf_count; - } else { - flush(); - _M_buffer[0] = __x; - _M_buf_count = 1; - } - } - void append(value_type* __s, size_t __len) - { - if (__len + _M_buf_count <= _Buf_sz) { - size_t __i = _M_buf_count; - size_t __j = 0; - for (; __j < __len; __i++, __j++) { - _M_buffer[__i] = __s[__j]; - } - _M_buf_count += __len; - } else if (0 == _M_buf_count) { - _M_prefix->append(__s, __s + __len); - } else { - flush(); - append(__s, __len); - } - } - sequence_buffer& write(value_type* __s, size_t __len) - { - append(__s, __len); - return *this; - } - sequence_buffer& put(value_type __x) - { - push_back(__x); - return *this; - } - sequence_buffer& operator=(const value_type& __rhs) - { - push_back(__rhs); - return *this; - } - sequence_buffer& operator*() { return *this; } - sequence_buffer& operator++() { return *this; } - sequence_buffer& operator++(int) { return *this; } -}; - -// The following should be treated as private, at least for now. -template<class _CharT> -class _Rope_char_consumer { - public: - // If we had member templates, these should not be virtual. - // For now we need to use run-time parametrization where - // compile-time would do. Hence this should all be private - // for now. - // The symmetry with char_producer is accidental and temporary. - virtual ~_Rope_char_consumer() {}; - virtual bool operator()(const _CharT* __buffer, size_t __len) = 0; -}; - -// First a lot of forward declarations. The standard seems to require -// much stricter "declaration before use" than many of the implementations -// that preceded it. -template<class _CharT, class _Alloc=allocator<_CharT> > class rope; -template<class _CharT, class _Alloc> struct _Rope_RopeConcatenation; -template<class _CharT, class _Alloc> struct _Rope_RopeLeaf; -template<class _CharT, class _Alloc> struct _Rope_RopeFunction; -template<class _CharT, class _Alloc> struct _Rope_RopeSubstring; -template<class _CharT, class _Alloc> class _Rope_iterator; -template<class _CharT, class _Alloc> class _Rope_const_iterator; -template<class _CharT, class _Alloc> class _Rope_char_ref_proxy; -template<class _CharT, class _Alloc> class _Rope_char_ptr_proxy; - -template<class _CharT, class _Alloc> -bool operator== (const _Rope_char_ptr_proxy<_CharT,_Alloc>& __x, - const _Rope_char_ptr_proxy<_CharT,_Alloc>& __y); - -template<class _CharT, class _Alloc> -_Rope_const_iterator<_CharT,_Alloc> operator- - (const _Rope_const_iterator<_CharT,_Alloc>& __x, - ptrdiff_t __n); - -template<class _CharT, class _Alloc> -_Rope_const_iterator<_CharT,_Alloc> operator+ - (const _Rope_const_iterator<_CharT,_Alloc>& __x, - ptrdiff_t __n); - -template<class _CharT, class _Alloc> -_Rope_const_iterator<_CharT,_Alloc> operator+ - (ptrdiff_t __n, - const _Rope_const_iterator<_CharT,_Alloc>& __x); - -template<class _CharT, class _Alloc> -bool operator== - (const _Rope_const_iterator<_CharT,_Alloc>& __x, - const _Rope_const_iterator<_CharT,_Alloc>& __y); - -template<class _CharT, class _Alloc> -bool operator< - (const _Rope_const_iterator<_CharT,_Alloc>& __x, - const _Rope_const_iterator<_CharT,_Alloc>& __y); - -template<class _CharT, class _Alloc> -ptrdiff_t operator- - (const _Rope_const_iterator<_CharT,_Alloc>& __x, - const _Rope_const_iterator<_CharT,_Alloc>& __y); - -template<class _CharT, class _Alloc> -_Rope_iterator<_CharT,_Alloc> operator- - (const _Rope_iterator<_CharT,_Alloc>& __x, - ptrdiff_t __n); - -template<class _CharT, class _Alloc> -_Rope_iterator<_CharT,_Alloc> operator+ - (const _Rope_iterator<_CharT,_Alloc>& __x, - ptrdiff_t __n); - -template<class _CharT, class _Alloc> -_Rope_iterator<_CharT,_Alloc> operator+ - (ptrdiff_t __n, - const _Rope_iterator<_CharT,_Alloc>& __x); - -template<class _CharT, class _Alloc> -bool operator== - (const _Rope_iterator<_CharT,_Alloc>& __x, - const _Rope_iterator<_CharT,_Alloc>& __y); - -template<class _CharT, class _Alloc> -bool operator< - (const _Rope_iterator<_CharT,_Alloc>& __x, - const _Rope_iterator<_CharT,_Alloc>& __y); - -template<class _CharT, class _Alloc> -ptrdiff_t operator- - (const _Rope_iterator<_CharT,_Alloc>& __x, - const _Rope_iterator<_CharT,_Alloc>& __y); - -template<class _CharT, class _Alloc> -rope<_CharT,_Alloc> operator+ (const rope<_CharT,_Alloc>& __left, - const rope<_CharT,_Alloc>& __right); - -template<class _CharT, class _Alloc> -rope<_CharT,_Alloc> operator+ (const rope<_CharT,_Alloc>& __left, - const _CharT* __right); - -template<class _CharT, class _Alloc> -rope<_CharT,_Alloc> operator+ (const rope<_CharT,_Alloc>& __left, - _CharT __right); - -// Some helpers, so we can use power on ropes. -// See below for why this isn't local to the implementation. - -// This uses a nonstandard refcount convention. -// The result has refcount 0. -template<class _CharT, class _Alloc> -struct _Rope_Concat_fn - : public std::binary_function<rope<_CharT,_Alloc>, rope<_CharT,_Alloc>, - rope<_CharT,_Alloc> > { - rope<_CharT,_Alloc> operator() (const rope<_CharT,_Alloc>& __x, - const rope<_CharT,_Alloc>& __y) { - return __x + __y; - } -}; - -template <class _CharT, class _Alloc> -inline -rope<_CharT,_Alloc> -identity_element(_Rope_Concat_fn<_CharT, _Alloc>) -{ - return rope<_CharT,_Alloc>(); -} - - -// -// What follows should really be local to rope. Unfortunately, -// that doesn't work, since it makes it impossible to define generic -// equality on rope iterators. According to the draft standard, the -// template parameters for such an equality operator cannot be inferred -// from the occurrence of a member class as a parameter. -// (SGI compilers in fact allow this, but the __result wouldn't be -// portable.) -// Similarly, some of the static member functions are member functions -// only to avoid polluting the global namespace, and to circumvent -// restrictions on type inference for template functions. -// - -// -// The internal data structure for representing a rope. This is -// private to the implementation. A rope is really just a pointer -// to one of these. -// -// A few basic functions for manipulating this data structure -// are members of _RopeRep. Most of the more complex algorithms -// are implemented as rope members. -// -// Some of the static member functions of _RopeRep have identically -// named functions in rope that simply invoke the _RopeRep versions. -// -// A macro to introduce various allocation and deallocation functions -// These need to be defined differently depending on whether or not -// we are using standard conforming allocators, and whether the allocator -// instances have real state. Thus this macro is invoked repeatedly -// with different definitions of __ROPE_DEFINE_ALLOC. -// __ROPE_DEFINE_ALLOC(type,name) defines -// type * name_allocate(size_t) and -// void name_deallocate(tipe *, size_t) -// Both functions may or may not be static. - -#define __ROPE_DEFINE_ALLOCS(__a) \ - __ROPE_DEFINE_ALLOC(_CharT,_Data) /* character data */ \ - typedef _Rope_RopeConcatenation<_CharT,__a> __C; \ - __ROPE_DEFINE_ALLOC(__C,_C) \ - typedef _Rope_RopeLeaf<_CharT,__a> __L; \ - __ROPE_DEFINE_ALLOC(__L,_L) \ - typedef _Rope_RopeFunction<_CharT,__a> __F; \ - __ROPE_DEFINE_ALLOC(__F,_F) \ - typedef _Rope_RopeSubstring<_CharT,__a> __S; \ - __ROPE_DEFINE_ALLOC(__S,_S) - -// Internal rope nodes potentially store a copy of the allocator -// instance used to allocate them. This is mostly redundant. -// But the alternative would be to pass allocator instances around -// in some form to nearly all internal functions, since any pointer -// assignment may result in a zero reference count and thus require -// deallocation. -// The _Rope_rep_base class encapsulates -// the differences between SGI-style allocators and standard-conforming -// allocators. - -#define __STATIC_IF_SGI_ALLOC /* not static */ - -// Base class for ordinary allocators. -template <class _CharT, class _Allocator, bool _IsStatic> -class _Rope_rep_alloc_base { -public: - typedef typename _Alloc_traits<_CharT,_Allocator>::allocator_type - allocator_type; - allocator_type get_allocator() const { return _M_data_allocator; } - _Rope_rep_alloc_base(size_t __size, const allocator_type& __a) - : _M_size(__size), _M_data_allocator(__a) {} - size_t _M_size; // This is here only to avoid wasting space - // for an otherwise empty base class. - - -protected: - allocator_type _M_data_allocator; - -# define __ROPE_DEFINE_ALLOC(_Tp, __name) \ - typedef typename \ - _Alloc_traits<_Tp,_Allocator>::allocator_type __name##Allocator; \ - /*static*/ _Tp * __name##_allocate(size_t __n) \ - { return __name##Allocator(_M_data_allocator).allocate(__n); } \ - void __name##_deallocate(_Tp* __p, size_t __n) \ - { __name##Allocator(_M_data_allocator).deallocate(__p, __n); } - __ROPE_DEFINE_ALLOCS(_Allocator); -# undef __ROPE_DEFINE_ALLOC -}; - -// Specialization for allocators that have the property that we don't -// actually have to store an allocator object. -template <class _CharT, class _Allocator> -class _Rope_rep_alloc_base<_CharT,_Allocator,true> { -public: - typedef typename _Alloc_traits<_CharT,_Allocator>::allocator_type - allocator_type; - allocator_type get_allocator() const { return allocator_type(); } - _Rope_rep_alloc_base(size_t __size, const allocator_type&) - : _M_size(__size) {} - size_t _M_size; - -protected: - -# define __ROPE_DEFINE_ALLOC(_Tp, __name) \ - typedef typename \ - _Alloc_traits<_Tp,_Allocator>::_Alloc_type __name##Alloc; \ - typedef typename \ - _Alloc_traits<_Tp,_Allocator>::allocator_type __name##Allocator; \ - static _Tp* __name##_allocate(size_t __n) \ - { return __name##Alloc::allocate(__n); } \ - void __name##_deallocate(_Tp *__p, size_t __n) \ - { __name##Alloc::deallocate(__p, __n); } - __ROPE_DEFINE_ALLOCS(_Allocator); -# undef __ROPE_DEFINE_ALLOC -}; - -template <class _CharT, class _Alloc> -struct _Rope_rep_base - : public _Rope_rep_alloc_base<_CharT,_Alloc, - _Alloc_traits<_CharT,_Alloc>::_S_instanceless> -{ - typedef _Rope_rep_alloc_base<_CharT,_Alloc, - _Alloc_traits<_CharT,_Alloc>::_S_instanceless> - _Base; - typedef typename _Base::allocator_type allocator_type; - _Rope_rep_base(size_t __size, const allocator_type& __a) - : _Base(__size, __a) {} -}; - - -template<class _CharT, class _Alloc> -struct _Rope_RopeRep : public _Rope_rep_base<_CharT,_Alloc> -# ifndef __GC - , _Refcount_Base -# endif -{ - public: - enum { _S_max_rope_depth = 45 }; - enum _Tag {_S_leaf, _S_concat, _S_substringfn, _S_function}; - _Tag _M_tag:8; - bool _M_is_balanced:8; - unsigned char _M_depth; - __GC_CONST _CharT* _M_c_string; - /* Flattened version of string, if needed. */ - /* typically 0. */ - /* If it's not 0, then the memory is owned */ - /* by this node. */ - /* In the case of a leaf, this may point to */ - /* the same memory as the data field. */ - typedef typename _Rope_rep_base<_CharT,_Alloc>::allocator_type - allocator_type; - _Rope_RopeRep(_Tag __t, int __d, bool __b, size_t __size, - allocator_type __a) - : _Rope_rep_base<_CharT,_Alloc>(__size, __a), -# ifndef __GC - _Refcount_Base(1), -# endif - _M_tag(__t), _M_is_balanced(__b), _M_depth(__d), _M_c_string(0) - { } -# ifdef __GC - void _M_incr () {} -# endif - static void _S_free_string(__GC_CONST _CharT*, size_t __len, - allocator_type __a); -# define __STL_FREE_STRING(__s, __l, __a) _S_free_string(__s, __l, __a); - // Deallocate data section of a leaf. - // This shouldn't be a member function. - // But its hard to do anything else at the - // moment, because it's templatized w.r.t. - // an allocator. - // Does nothing if __GC is defined. -# ifndef __GC - void _M_free_c_string(); - void _M_free_tree(); - // Deallocate t. Assumes t is not 0. - void _M_unref_nonnil() - { - if (0 == _M_decr()) _M_free_tree(); - } - void _M_ref_nonnil() - { - _M_incr(); - } - static void _S_unref(_Rope_RopeRep* __t) - { - if (0 != __t) { - __t->_M_unref_nonnil(); - } - } - static void _S_ref(_Rope_RopeRep* __t) - { - if (0 != __t) __t->_M_incr(); - } - static void _S_free_if_unref(_Rope_RopeRep* __t) - { - if (0 != __t && 0 == __t->_M_ref_count) __t->_M_free_tree(); - } -# else /* __GC */ - void _M_unref_nonnil() {} - void _M_ref_nonnil() {} - static void _S_unref(_Rope_RopeRep*) {} - static void _S_ref(_Rope_RopeRep*) {} - static void _S_free_if_unref(_Rope_RopeRep*) {} -# endif - -}; - -template<class _CharT, class _Alloc> -struct _Rope_RopeLeaf : public _Rope_RopeRep<_CharT,_Alloc> { - public: - // Apparently needed by VC++ - // The data fields of leaves are allocated with some - // extra space, to accommodate future growth and for basic - // character types, to hold a trailing eos character. - enum { _S_alloc_granularity = 8 }; - static size_t _S_rounded_up_size(size_t __n) { - size_t __size_with_eos; - - if (_S_is_basic_char_type((_CharT*)0)) { - __size_with_eos = __n + 1; - } else { - __size_with_eos = __n; - } -# ifdef __GC - return __size_with_eos; -# else - // Allow slop for in-place expansion. - return (__size_with_eos + _S_alloc_granularity-1) - &~ (_S_alloc_granularity-1); -# endif - } - __GC_CONST _CharT* _M_data; /* Not necessarily 0 terminated. */ - /* The allocated size is */ - /* _S_rounded_up_size(size), except */ - /* in the GC case, in which it */ - /* doesn't matter. */ - typedef typename _Rope_rep_base<_CharT,_Alloc>::allocator_type - allocator_type; - _Rope_RopeLeaf(__GC_CONST _CharT* __d, size_t __size, allocator_type __a) - : _Rope_RopeRep<_CharT,_Alloc>(_S_leaf, 0, true, __size, __a), - _M_data(__d) - { - if (_S_is_basic_char_type((_CharT *)0)) { - // already eos terminated. - _M_c_string = __d; - } - } - // The constructor assumes that d has been allocated with - // the proper allocator and the properly padded size. - // In contrast, the destructor deallocates the data: -# ifndef __GC - ~_Rope_RopeLeaf() { - if (_M_data != _M_c_string) { - _M_free_c_string(); - } - __STL_FREE_STRING(_M_data, _M_size, get_allocator()); - } -# endif -}; - -template<class _CharT, class _Alloc> -struct _Rope_RopeConcatenation : public _Rope_RopeRep<_CharT,_Alloc> { - public: - _Rope_RopeRep<_CharT,_Alloc>* _M_left; - _Rope_RopeRep<_CharT,_Alloc>* _M_right; - typedef typename _Rope_rep_base<_CharT,_Alloc>::allocator_type - allocator_type; - _Rope_RopeConcatenation(_Rope_RopeRep<_CharT,_Alloc>* __l, - _Rope_RopeRep<_CharT,_Alloc>* __r, - allocator_type __a) - - : _Rope_RopeRep<_CharT,_Alloc>(_S_concat, - std::max(__l->_M_depth, __r->_M_depth) + 1, - false, - __l->_M_size + __r->_M_size, __a), - _M_left(__l), _M_right(__r) - {} -# ifndef __GC - ~_Rope_RopeConcatenation() { - _M_free_c_string(); - _M_left->_M_unref_nonnil(); - _M_right->_M_unref_nonnil(); - } -# endif -}; - -template<class _CharT, class _Alloc> -struct _Rope_RopeFunction : public _Rope_RopeRep<_CharT,_Alloc> { - public: - char_producer<_CharT>* _M_fn; -# ifndef __GC - bool _M_delete_when_done; // Char_producer is owned by the - // rope and should be explicitly - // deleted when the rope becomes - // inaccessible. -# else - // In the GC case, we either register the rope for - // finalization, or not. Thus the field is unnecessary; - // the information is stored in the collector data structures. - // We do need a finalization procedure to be invoked by the - // collector. - static void _S_fn_finalization_proc(void * __tree, void *) { - delete ((_Rope_RopeFunction *)__tree) -> _M_fn; - } -# endif - typedef typename _Rope_rep_base<_CharT,_Alloc>::allocator_type - allocator_type; - _Rope_RopeFunction(char_producer<_CharT>* __f, size_t __size, - bool __d, allocator_type __a) - : _Rope_RopeRep<_CharT,_Alloc>(_S_function, 0, true, __size, __a) - , _M_fn(__f) -# ifndef __GC - , _M_delete_when_done(__d) -# endif - { -# ifdef __GC - if (__d) { - GC_REGISTER_FINALIZER( - this, _Rope_RopeFunction::_S_fn_finalization_proc, 0, 0, 0); - } -# endif - } -# ifndef __GC - ~_Rope_RopeFunction() { - _M_free_c_string(); - if (_M_delete_when_done) { - delete _M_fn; - } - } -# endif -}; -// Substring results are usually represented using just -// concatenation nodes. But in the case of very long flat ropes -// or ropes with a functional representation that isn't practical. -// In that case, we represent the __result as a special case of -// RopeFunction, whose char_producer points back to the rope itself. -// In all cases except repeated substring operations and -// deallocation, we treat the __result as a RopeFunction. -template<class _CharT, class _Alloc> -struct _Rope_RopeSubstring : public _Rope_RopeFunction<_CharT,_Alloc>, - public char_producer<_CharT> { - public: - // XXX this whole class should be rewritten. - _Rope_RopeRep<_CharT,_Alloc>* _M_base; // not 0 - size_t _M_start; - virtual void operator()(size_t __start_pos, size_t __req_len, - _CharT* __buffer) { - switch(_M_base->_M_tag) { - case _S_function: - case _S_substringfn: - { - char_producer<_CharT>* __fn = - ((_Rope_RopeFunction<_CharT,_Alloc>*)_M_base)->_M_fn; - (*__fn)(__start_pos + _M_start, __req_len, __buffer); - } - break; - case _S_leaf: - { - __GC_CONST _CharT* __s = - ((_Rope_RopeLeaf<_CharT,_Alloc>*)_M_base)->_M_data; - uninitialized_copy_n(__s + __start_pos + _M_start, __req_len, - __buffer); - } - break; - default: - break; - } - } - typedef typename _Rope_rep_base<_CharT,_Alloc>::allocator_type - allocator_type; - _Rope_RopeSubstring(_Rope_RopeRep<_CharT,_Alloc>* __b, size_t __s, - size_t __l, allocator_type __a) - : _Rope_RopeFunction<_CharT,_Alloc>(this, __l, false, __a), - char_producer<_CharT>(), - _M_base(__b), - _M_start(__s) - { -# ifndef __GC - _M_base->_M_ref_nonnil(); -# endif - _M_tag = _S_substringfn; - } - virtual ~_Rope_RopeSubstring() - { -# ifndef __GC - _M_base->_M_unref_nonnil(); - // _M_free_c_string(); -- done by parent class -# endif - } -}; - - -// Self-destructing pointers to Rope_rep. -// These are not conventional smart pointers. Their -// only purpose in life is to ensure that unref is called -// on the pointer either at normal exit or if an exception -// is raised. It is the caller's responsibility to -// adjust reference counts when these pointers are initialized -// or assigned to. (This convention significantly reduces -// the number of potentially expensive reference count -// updates.) -#ifndef __GC - template<class _CharT, class _Alloc> - struct _Rope_self_destruct_ptr { - _Rope_RopeRep<_CharT,_Alloc>* _M_ptr; - ~_Rope_self_destruct_ptr() - { _Rope_RopeRep<_CharT,_Alloc>::_S_unref(_M_ptr); } -#ifdef __EXCEPTIONS - _Rope_self_destruct_ptr() : _M_ptr(0) {}; -#else - _Rope_self_destruct_ptr() {}; -#endif - _Rope_self_destruct_ptr(_Rope_RopeRep<_CharT,_Alloc>* __p) : _M_ptr(__p) {} - _Rope_RopeRep<_CharT,_Alloc>& operator*() { return *_M_ptr; } - _Rope_RopeRep<_CharT,_Alloc>* operator->() { return _M_ptr; } - operator _Rope_RopeRep<_CharT,_Alloc>*() { return _M_ptr; } - _Rope_self_destruct_ptr& operator= (_Rope_RopeRep<_CharT,_Alloc>* __x) - { _M_ptr = __x; return *this; } - }; -#endif - -// Dereferencing a nonconst iterator has to return something -// that behaves almost like a reference. It's not possible to -// return an actual reference since assignment requires extra -// work. And we would get into the same problems as with the -// CD2 version of basic_string. -template<class _CharT, class _Alloc> -class _Rope_char_ref_proxy { - friend class rope<_CharT,_Alloc>; - friend class _Rope_iterator<_CharT,_Alloc>; - friend class _Rope_char_ptr_proxy<_CharT,_Alloc>; -# ifdef __GC - typedef _Rope_RopeRep<_CharT,_Alloc>* _Self_destruct_ptr; -# else - typedef _Rope_self_destruct_ptr<_CharT,_Alloc> _Self_destruct_ptr; -# endif - typedef _Rope_RopeRep<_CharT,_Alloc> _RopeRep; - typedef rope<_CharT,_Alloc> _My_rope; - size_t _M_pos; - _CharT _M_current; - bool _M_current_valid; - _My_rope* _M_root; // The whole rope. - public: - _Rope_char_ref_proxy(_My_rope* __r, size_t __p) - : _M_pos(__p), _M_current_valid(false), _M_root(__r) {} - _Rope_char_ref_proxy(const _Rope_char_ref_proxy& __x) - : _M_pos(__x._M_pos), _M_current_valid(false), _M_root(__x._M_root) {} - // Don't preserve cache if the reference can outlive the - // expression. We claim that's not possible without calling - // a copy constructor or generating reference to a proxy - // reference. We declare the latter to have undefined semantics. - _Rope_char_ref_proxy(_My_rope* __r, size_t __p, _CharT __c) - : _M_pos(__p), _M_current(__c), _M_current_valid(true), _M_root(__r) {} - inline operator _CharT () const; - _Rope_char_ref_proxy& operator= (_CharT __c); - _Rope_char_ptr_proxy<_CharT,_Alloc> operator& () const; - _Rope_char_ref_proxy& operator= (const _Rope_char_ref_proxy& __c) { - return operator=((_CharT)__c); - } -}; - -template<class _CharT, class __Alloc> -inline void swap(_Rope_char_ref_proxy <_CharT, __Alloc > __a, - _Rope_char_ref_proxy <_CharT, __Alloc > __b) { - _CharT __tmp = __a; - __a = __b; - __b = __tmp; -} - -template<class _CharT, class _Alloc> -class _Rope_char_ptr_proxy { - // XXX this class should be rewritten. - friend class _Rope_char_ref_proxy<_CharT,_Alloc>; - size_t _M_pos; - rope<_CharT,_Alloc>* _M_root; // The whole rope. - public: - _Rope_char_ptr_proxy(const _Rope_char_ref_proxy<_CharT,_Alloc>& __x) - : _M_pos(__x._M_pos), _M_root(__x._M_root) {} - _Rope_char_ptr_proxy(const _Rope_char_ptr_proxy& __x) - : _M_pos(__x._M_pos), _M_root(__x._M_root) {} - _Rope_char_ptr_proxy() {} - _Rope_char_ptr_proxy(_CharT* __x) : _M_root(0), _M_pos(0) { - } - _Rope_char_ptr_proxy& - operator= (const _Rope_char_ptr_proxy& __x) { - _M_pos = __x._M_pos; - _M_root = __x._M_root; - return *this; - } - template<class _CharT2, class _Alloc2> - friend bool operator== (const _Rope_char_ptr_proxy<_CharT2,_Alloc2>& __x, - const _Rope_char_ptr_proxy<_CharT2,_Alloc2>& __y); - _Rope_char_ref_proxy<_CharT,_Alloc> operator*() const { - return _Rope_char_ref_proxy<_CharT,_Alloc>(_M_root, _M_pos); - } -}; - - -// Rope iterators: -// Unlike in the C version, we cache only part of the stack -// for rope iterators, since they must be efficiently copyable. -// When we run out of cache, we have to reconstruct the iterator -// value. -// Pointers from iterators are not included in reference counts. -// Iterators are assumed to be thread private. Ropes can -// be shared. - -template<class _CharT, class _Alloc> -class _Rope_iterator_base - : public iterator<std::random_access_iterator_tag, _CharT> -{ - friend class rope<_CharT,_Alloc>; - public: - typedef _Alloc _allocator_type; // used in _Rope_rotate, VC++ workaround - typedef _Rope_RopeRep<_CharT,_Alloc> _RopeRep; - // Borland doesn't want this to be protected. - protected: - enum { _S_path_cache_len = 4 }; // Must be <= 9. - enum { _S_iterator_buf_len = 15 }; - size_t _M_current_pos; - _RopeRep* _M_root; // The whole rope. - size_t _M_leaf_pos; // Starting position for current leaf - __GC_CONST _CharT* _M_buf_start; - // Buffer possibly - // containing current char. - __GC_CONST _CharT* _M_buf_ptr; - // Pointer to current char in buffer. - // != 0 ==> buffer valid. - __GC_CONST _CharT* _M_buf_end; - // One past __last valid char in buffer. - // What follows is the path cache. We go out of our - // way to make this compact. - // Path_end contains the bottom section of the path from - // the root to the current leaf. - const _RopeRep* _M_path_end[_S_path_cache_len]; - int _M_leaf_index; // Last valid __pos in path_end; - // _M_path_end[0] ... _M_path_end[leaf_index-1] - // point to concatenation nodes. - unsigned char _M_path_directions; - // (path_directions >> __i) & 1 is 1 - // iff we got from _M_path_end[leaf_index - __i - 1] - // to _M_path_end[leaf_index - __i] by going to the - // __right. Assumes path_cache_len <= 9. - _CharT _M_tmp_buf[_S_iterator_buf_len]; - // Short buffer for surrounding chars. - // This is useful primarily for - // RopeFunctions. We put the buffer - // here to avoid locking in the - // multithreaded case. - // The cached path is generally assumed to be valid - // only if the buffer is valid. - static void _S_setbuf(_Rope_iterator_base& __x); - // Set buffer contents given - // path cache. - static void _S_setcache(_Rope_iterator_base& __x); - // Set buffer contents and - // path cache. - static void _S_setcache_for_incr(_Rope_iterator_base& __x); - // As above, but assumes path - // cache is valid for previous posn. - _Rope_iterator_base() {} - _Rope_iterator_base(_RopeRep* __root, size_t __pos) - : _M_current_pos(__pos), _M_root(__root), _M_buf_ptr(0) {} - void _M_incr(size_t __n); - void _M_decr(size_t __n); - public: - size_t index() const { return _M_current_pos; } - _Rope_iterator_base(const _Rope_iterator_base& __x) { - if (0 != __x._M_buf_ptr) { - *this = __x; - } else { - _M_current_pos = __x._M_current_pos; - _M_root = __x._M_root; - _M_buf_ptr = 0; - } - } -}; - -template<class _CharT, class _Alloc> class _Rope_iterator; - -template<class _CharT, class _Alloc> -class _Rope_const_iterator : public _Rope_iterator_base<_CharT,_Alloc> { - friend class rope<_CharT,_Alloc>; - protected: - typedef _Rope_RopeRep<_CharT,_Alloc> _RopeRep; - // The one from the base class may not be directly visible. - _Rope_const_iterator(const _RopeRep* __root, size_t __pos): - _Rope_iterator_base<_CharT,_Alloc>( - const_cast<_RopeRep*>(__root), __pos) - // Only nonconst iterators modify root ref count - {} - public: - typedef _CharT reference; // Really a value. Returning a reference - // Would be a mess, since it would have - // to be included in refcount. - typedef const _CharT* pointer; - - public: - _Rope_const_iterator() {}; - _Rope_const_iterator(const _Rope_const_iterator& __x) : - _Rope_iterator_base<_CharT,_Alloc>(__x) { } - _Rope_const_iterator(const _Rope_iterator<_CharT,_Alloc>& __x); - _Rope_const_iterator(const rope<_CharT,_Alloc>& __r, size_t __pos) : - _Rope_iterator_base<_CharT,_Alloc>(__r._M_tree_ptr, __pos) {} - _Rope_const_iterator& operator= (const _Rope_const_iterator& __x) { - if (0 != __x._M_buf_ptr) { - *(static_cast<_Rope_iterator_base<_CharT,_Alloc>*>(this)) = __x; - } else { - _M_current_pos = __x._M_current_pos; - _M_root = __x._M_root; - _M_buf_ptr = 0; - } - return(*this); - } - reference operator*() { - if (0 == _M_buf_ptr) _S_setcache(*this); - return *_M_buf_ptr; - } - _Rope_const_iterator& operator++() { - __GC_CONST _CharT* __next; - if (0 != _M_buf_ptr && (__next = _M_buf_ptr + 1) < _M_buf_end) { - _M_buf_ptr = __next; - ++_M_current_pos; - } else { - _M_incr(1); - } - return *this; - } - _Rope_const_iterator& operator+=(ptrdiff_t __n) { - if (__n >= 0) { - _M_incr(__n); - } else { - _M_decr(-__n); - } - return *this; - } - _Rope_const_iterator& operator--() { - _M_decr(1); - return *this; - } - _Rope_const_iterator& operator-=(ptrdiff_t __n) { - if (__n >= 0) { - _M_decr(__n); - } else { - _M_incr(-__n); - } - return *this; - } - _Rope_const_iterator operator++(int) { - size_t __old_pos = _M_current_pos; - _M_incr(1); - return _Rope_const_iterator<_CharT,_Alloc>(_M_root, __old_pos); - // This makes a subsequent dereference expensive. - // Perhaps we should instead copy the iterator - // if it has a valid cache? - } - _Rope_const_iterator operator--(int) { - size_t __old_pos = _M_current_pos; - _M_decr(1); - return _Rope_const_iterator<_CharT,_Alloc>(_M_root, __old_pos); - } - template<class _CharT2, class _Alloc2> - friend _Rope_const_iterator<_CharT2,_Alloc2> operator- - (const _Rope_const_iterator<_CharT2,_Alloc2>& __x, - ptrdiff_t __n); - template<class _CharT2, class _Alloc2> - friend _Rope_const_iterator<_CharT2,_Alloc2> operator+ - (const _Rope_const_iterator<_CharT2,_Alloc2>& __x, - ptrdiff_t __n); - template<class _CharT2, class _Alloc2> - friend _Rope_const_iterator<_CharT2,_Alloc2> operator+ - (ptrdiff_t __n, - const _Rope_const_iterator<_CharT2,_Alloc2>& __x); - reference operator[](size_t __n) { - return rope<_CharT,_Alloc>::_S_fetch(_M_root, _M_current_pos + __n); - } - - template<class _CharT2, class _Alloc2> - friend bool operator== - (const _Rope_const_iterator<_CharT2,_Alloc2>& __x, - const _Rope_const_iterator<_CharT2,_Alloc2>& __y); - template<class _CharT2, class _Alloc2> - friend bool operator< - (const _Rope_const_iterator<_CharT2,_Alloc2>& __x, - const _Rope_const_iterator<_CharT2,_Alloc2>& __y); - template<class _CharT2, class _Alloc2> - friend ptrdiff_t operator- - (const _Rope_const_iterator<_CharT2,_Alloc2>& __x, - const _Rope_const_iterator<_CharT2,_Alloc2>& __y); -}; - -template<class _CharT, class _Alloc> -class _Rope_iterator : public _Rope_iterator_base<_CharT,_Alloc> { - friend class rope<_CharT,_Alloc>; - protected: - typedef typename _Rope_iterator_base<_CharT,_Alloc>::_RopeRep _RopeRep; - rope<_CharT,_Alloc>* _M_root_rope; - // root is treated as a cached version of this, - // and is used to detect changes to the underlying - // rope. - // Root is included in the reference count. - // This is necessary so that we can detect changes reliably. - // Unfortunately, it requires careful bookkeeping for the - // nonGC case. - _Rope_iterator(rope<_CharT,_Alloc>* __r, size_t __pos) - : _Rope_iterator_base<_CharT,_Alloc>(__r->_M_tree_ptr, __pos), - _M_root_rope(__r) - { _RopeRep::_S_ref(_M_root); if (!(__r -> empty()))_S_setcache(*this); } - - void _M_check(); - public: - typedef _Rope_char_ref_proxy<_CharT,_Alloc> reference; - typedef _Rope_char_ref_proxy<_CharT,_Alloc>* pointer; - - public: - rope<_CharT,_Alloc>& container() { return *_M_root_rope; } - _Rope_iterator() { - _M_root = 0; // Needed for reference counting. - }; - _Rope_iterator(const _Rope_iterator& __x) : - _Rope_iterator_base<_CharT,_Alloc>(__x) { - _M_root_rope = __x._M_root_rope; - _RopeRep::_S_ref(_M_root); - } - _Rope_iterator(rope<_CharT,_Alloc>& __r, size_t __pos); - ~_Rope_iterator() { - _RopeRep::_S_unref(_M_root); - } - _Rope_iterator& operator= (const _Rope_iterator& __x) { - _RopeRep* __old = _M_root; - - _RopeRep::_S_ref(__x._M_root); - if (0 != __x._M_buf_ptr) { - _M_root_rope = __x._M_root_rope; - *(static_cast<_Rope_iterator_base<_CharT,_Alloc>*>(this)) = __x; - } else { - _M_current_pos = __x._M_current_pos; - _M_root = __x._M_root; - _M_root_rope = __x._M_root_rope; - _M_buf_ptr = 0; - } - _RopeRep::_S_unref(__old); - return(*this); - } - reference operator*() { - _M_check(); - if (0 == _M_buf_ptr) { - return _Rope_char_ref_proxy<_CharT,_Alloc>( - _M_root_rope, _M_current_pos); - } else { - return _Rope_char_ref_proxy<_CharT,_Alloc>( - _M_root_rope, _M_current_pos, *_M_buf_ptr); - } - } - _Rope_iterator& operator++() { - _M_incr(1); - return *this; - } - _Rope_iterator& operator+=(ptrdiff_t __n) { - if (__n >= 0) { - _M_incr(__n); - } else { - _M_decr(-__n); - } - return *this; - } - _Rope_iterator& operator--() { - _M_decr(1); - return *this; - } - _Rope_iterator& operator-=(ptrdiff_t __n) { - if (__n >= 0) { - _M_decr(__n); - } else { - _M_incr(-__n); - } - return *this; - } - _Rope_iterator operator++(int) { - size_t __old_pos = _M_current_pos; - _M_incr(1); - return _Rope_iterator<_CharT,_Alloc>(_M_root_rope, __old_pos); - } - _Rope_iterator operator--(int) { - size_t __old_pos = _M_current_pos; - _M_decr(1); - return _Rope_iterator<_CharT,_Alloc>(_M_root_rope, __old_pos); - } - reference operator[](ptrdiff_t __n) { - return _Rope_char_ref_proxy<_CharT,_Alloc>( - _M_root_rope, _M_current_pos + __n); - } - - template<class _CharT2, class _Alloc2> - friend bool operator== - (const _Rope_iterator<_CharT2,_Alloc2>& __x, - const _Rope_iterator<_CharT2,_Alloc2>& __y); - template<class _CharT2, class _Alloc2> - friend bool operator< - (const _Rope_iterator<_CharT2,_Alloc2>& __x, - const _Rope_iterator<_CharT2,_Alloc2>& __y); - template<class _CharT2, class _Alloc2> - friend ptrdiff_t operator- - (const _Rope_iterator<_CharT2,_Alloc2>& __x, - const _Rope_iterator<_CharT2,_Alloc2>& __y); - template<class _CharT2, class _Alloc2> - friend _Rope_iterator<_CharT2,_Alloc2> operator- - (const _Rope_iterator<_CharT2,_Alloc2>& __x, - ptrdiff_t __n); - template<class _CharT2, class _Alloc2> - friend _Rope_iterator<_CharT2,_Alloc2> operator+ - (const _Rope_iterator<_CharT2,_Alloc2>& __x, - ptrdiff_t __n); - template<class _CharT2, class _Alloc2> - friend _Rope_iterator<_CharT2,_Alloc2> operator+ - (ptrdiff_t __n, - const _Rope_iterator<_CharT2,_Alloc2>& __x); -}; - -// The rope base class encapsulates -// the differences between SGI-style allocators and standard-conforming -// allocators. - -// Base class for ordinary allocators. -template <class _CharT, class _Allocator, bool _IsStatic> -class _Rope_alloc_base { -public: - typedef _Rope_RopeRep<_CharT,_Allocator> _RopeRep; - typedef typename _Alloc_traits<_CharT,_Allocator>::allocator_type - allocator_type; - allocator_type get_allocator() const { return _M_data_allocator; } - _Rope_alloc_base(_RopeRep *__t, const allocator_type& __a) - : _M_tree_ptr(__t), _M_data_allocator(__a) {} - _Rope_alloc_base(const allocator_type& __a) - : _M_data_allocator(__a) {} - -protected: - // The only data members of a rope: - allocator_type _M_data_allocator; - _RopeRep* _M_tree_ptr; - -# define __ROPE_DEFINE_ALLOC(_Tp, __name) \ - typedef typename \ - _Alloc_traits<_Tp,_Allocator>::allocator_type __name##Allocator; \ - _Tp* __name##_allocate(size_t __n) const \ - { return __name##Allocator(_M_data_allocator).allocate(__n); } \ - void __name##_deallocate(_Tp *__p, size_t __n) const \ - { __name##Allocator(_M_data_allocator).deallocate(__p, __n); } - __ROPE_DEFINE_ALLOCS(_Allocator) -# undef __ROPE_DEFINE_ALLOC -}; - -// Specialization for allocators that have the property that we don't -// actually have to store an allocator object. -template <class _CharT, class _Allocator> -class _Rope_alloc_base<_CharT,_Allocator,true> { -public: - typedef _Rope_RopeRep<_CharT,_Allocator> _RopeRep; - typedef typename _Alloc_traits<_CharT,_Allocator>::allocator_type - allocator_type; - allocator_type get_allocator() const { return allocator_type(); } - _Rope_alloc_base(_RopeRep *__t, const allocator_type&) - : _M_tree_ptr(__t) {} - _Rope_alloc_base(const allocator_type&) {} - -protected: - // The only data member of a rope: - _RopeRep *_M_tree_ptr; - -# define __ROPE_DEFINE_ALLOC(_Tp, __name) \ - typedef typename \ - _Alloc_traits<_Tp,_Allocator>::_Alloc_type __name##Alloc; \ - typedef typename \ - _Alloc_traits<_Tp,_Allocator>::allocator_type __name##Allocator; \ - static _Tp* __name##_allocate(size_t __n) \ - { return __name##Alloc::allocate(__n); } \ - static void __name##_deallocate(_Tp *__p, size_t __n) \ - { __name##Alloc::deallocate(__p, __n); } - __ROPE_DEFINE_ALLOCS(_Allocator) -# undef __ROPE_DEFINE_ALLOC -}; - -template <class _CharT, class _Alloc> -struct _Rope_base - : public _Rope_alloc_base<_CharT,_Alloc, - _Alloc_traits<_CharT,_Alloc>::_S_instanceless> -{ - typedef _Rope_alloc_base<_CharT,_Alloc, - _Alloc_traits<_CharT,_Alloc>::_S_instanceless> - _Base; - typedef typename _Base::allocator_type allocator_type; - typedef _Rope_RopeRep<_CharT,_Alloc> _RopeRep; - // The one in _Base may not be visible due to template rules. - _Rope_base(_RopeRep* __t, const allocator_type& __a) : _Base(__t, __a) {} - _Rope_base(const allocator_type& __a) : _Base(__a) {} -}; - - -/** - * This is an SGI extension. - * @ingroup SGIextensions - * @doctodo -*/ -template <class _CharT, class _Alloc> -class rope : public _Rope_base<_CharT,_Alloc> { - public: - typedef _CharT value_type; - typedef ptrdiff_t difference_type; - typedef size_t size_type; - typedef _CharT const_reference; - typedef const _CharT* const_pointer; - typedef _Rope_iterator<_CharT,_Alloc> iterator; - typedef _Rope_const_iterator<_CharT,_Alloc> const_iterator; - typedef _Rope_char_ref_proxy<_CharT,_Alloc> reference; - typedef _Rope_char_ptr_proxy<_CharT,_Alloc> pointer; - - friend class _Rope_iterator<_CharT,_Alloc>; - friend class _Rope_const_iterator<_CharT,_Alloc>; - friend struct _Rope_RopeRep<_CharT,_Alloc>; - friend class _Rope_iterator_base<_CharT,_Alloc>; - friend class _Rope_char_ptr_proxy<_CharT,_Alloc>; - friend class _Rope_char_ref_proxy<_CharT,_Alloc>; - friend struct _Rope_RopeSubstring<_CharT,_Alloc>; - - protected: - typedef _Rope_base<_CharT,_Alloc> _Base; - typedef typename _Base::allocator_type allocator_type; - using _Base::_M_tree_ptr; - typedef __GC_CONST _CharT* _Cstrptr; - - static _CharT _S_empty_c_str[1]; - - static bool _S_is0(_CharT __c) { return __c == _S_eos((_CharT*)0); } - enum { _S_copy_max = 23 }; - // For strings shorter than _S_copy_max, we copy to - // concatenate. - - typedef _Rope_RopeRep<_CharT,_Alloc> _RopeRep; - typedef _Rope_RopeConcatenation<_CharT,_Alloc> _RopeConcatenation; - typedef _Rope_RopeLeaf<_CharT,_Alloc> _RopeLeaf; - typedef _Rope_RopeFunction<_CharT,_Alloc> _RopeFunction; - typedef _Rope_RopeSubstring<_CharT,_Alloc> _RopeSubstring; - - // Retrieve a character at the indicated position. - static _CharT _S_fetch(_RopeRep* __r, size_type __pos); - -# ifndef __GC - // Obtain a pointer to the character at the indicated position. - // The pointer can be used to change the character. - // If such a pointer cannot be produced, as is frequently the - // case, 0 is returned instead. - // (Returns nonzero only if all nodes in the path have a refcount - // of 1.) - static _CharT* _S_fetch_ptr(_RopeRep* __r, size_type __pos); -# endif - - static bool _S_apply_to_pieces( - // should be template parameter - _Rope_char_consumer<_CharT>& __c, - const _RopeRep* __r, - size_t __begin, size_t __end); - // begin and end are assumed to be in range. - -# ifndef __GC - static void _S_unref(_RopeRep* __t) - { - _RopeRep::_S_unref(__t); - } - static void _S_ref(_RopeRep* __t) - { - _RopeRep::_S_ref(__t); - } -# else /* __GC */ - static void _S_unref(_RopeRep*) {} - static void _S_ref(_RopeRep*) {} -# endif - - -# ifdef __GC - typedef _Rope_RopeRep<_CharT,_Alloc>* _Self_destruct_ptr; -# else - typedef _Rope_self_destruct_ptr<_CharT,_Alloc> _Self_destruct_ptr; -# endif - - // _Result is counted in refcount. - static _RopeRep* _S_substring(_RopeRep* __base, - size_t __start, size_t __endp1); - - static _RopeRep* _S_concat_char_iter(_RopeRep* __r, - const _CharT* __iter, size_t __slen); - // Concatenate rope and char ptr, copying __s. - // Should really take an arbitrary iterator. - // Result is counted in refcount. - static _RopeRep* _S_destr_concat_char_iter(_RopeRep* __r, - const _CharT* __iter, size_t __slen) - // As above, but one reference to __r is about to be - // destroyed. Thus the pieces may be recycled if all - // relevant reference counts are 1. -# ifdef __GC - // We can't really do anything since refcounts are unavailable. - { return _S_concat_char_iter(__r, __iter, __slen); } -# else - ; -# endif - - static _RopeRep* _S_concat(_RopeRep* __left, _RopeRep* __right); - // General concatenation on _RopeRep. _Result - // has refcount of 1. Adjusts argument refcounts. - - public: - void apply_to_pieces( size_t __begin, size_t __end, - _Rope_char_consumer<_CharT>& __c) const { - _S_apply_to_pieces(__c, _M_tree_ptr, __begin, __end); - } - - - protected: - - static size_t _S_rounded_up_size(size_t __n) { - return _RopeLeaf::_S_rounded_up_size(__n); - } - - static size_t _S_allocated_capacity(size_t __n) { - if (_S_is_basic_char_type((_CharT*)0)) { - return _S_rounded_up_size(__n) - 1; - } else { - return _S_rounded_up_size(__n); - } - } - - // Allocate and construct a RopeLeaf using the supplied allocator - // Takes ownership of s instead of copying. - static _RopeLeaf* _S_new_RopeLeaf(__GC_CONST _CharT *__s, - size_t __size, allocator_type __a) - { - _RopeLeaf* __space = typename _Base::_LAllocator(__a).allocate(1); - return new(__space) _RopeLeaf(__s, __size, __a); - } - - static _RopeConcatenation* _S_new_RopeConcatenation( - _RopeRep* __left, _RopeRep* __right, - allocator_type __a) - { - _RopeConcatenation* __space = typename _Base::_CAllocator(__a).allocate(1); - return new(__space) _RopeConcatenation(__left, __right, __a); - } - - static _RopeFunction* _S_new_RopeFunction(char_producer<_CharT>* __f, - size_t __size, bool __d, allocator_type __a) - { - _RopeFunction* __space = typename _Base::_FAllocator(__a).allocate(1); - return new(__space) _RopeFunction(__f, __size, __d, __a); - } - - static _RopeSubstring* _S_new_RopeSubstring( - _Rope_RopeRep<_CharT,_Alloc>* __b, size_t __s, - size_t __l, allocator_type __a) - { - _RopeSubstring* __space = typename _Base::_SAllocator(__a).allocate(1); - return new(__space) _RopeSubstring(__b, __s, __l, __a); - } - - static - _RopeLeaf* _S_RopeLeaf_from_unowned_char_ptr(const _CharT *__s, - size_t __size, allocator_type __a) -# define __STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __size, __a) \ - _S_RopeLeaf_from_unowned_char_ptr(__s, __size, __a) - { - if (0 == __size) return 0; - _CharT* __buf = __a.allocate(_S_rounded_up_size(__size)); - - uninitialized_copy_n(__s, __size, __buf); - _S_cond_store_eos(__buf[__size]); - try { - return _S_new_RopeLeaf(__buf, __size, __a); - } - catch(...) - { - _RopeRep::__STL_FREE_STRING(__buf, __size, __a); - __throw_exception_again; - } - } - - - // Concatenation of nonempty strings. - // Always builds a concatenation node. - // Rebalances if the result is too deep. - // Result has refcount 1. - // Does not increment left and right ref counts even though - // they are referenced. - static _RopeRep* - _S_tree_concat(_RopeRep* __left, _RopeRep* __right); - - // Concatenation helper functions - static _RopeLeaf* - _S_leaf_concat_char_iter(_RopeLeaf* __r, - const _CharT* __iter, size_t __slen); - // Concatenate by copying leaf. - // should take an arbitrary iterator - // result has refcount 1. -# ifndef __GC - static _RopeLeaf* _S_destr_leaf_concat_char_iter - (_RopeLeaf* __r, const _CharT* __iter, size_t __slen); - // A version that potentially clobbers __r if __r->_M_ref_count == 1. -# endif - - private: - - static size_t _S_char_ptr_len(const _CharT* __s); - // slightly generalized strlen - - rope(_RopeRep* __t, const allocator_type& __a = allocator_type()) - : _Base(__t,__a) { } - - - // Copy __r to the _CharT buffer. - // Returns __buffer + __r->_M_size. - // Assumes that buffer is uninitialized. - static _CharT* _S_flatten(_RopeRep* __r, _CharT* __buffer); - - // Again, with explicit starting position and length. - // Assumes that buffer is uninitialized. - static _CharT* _S_flatten(_RopeRep* __r, - size_t __start, size_t __len, - _CharT* __buffer); - - static const unsigned long - _S_min_len[_RopeRep::_S_max_rope_depth + 1]; - - static bool _S_is_balanced(_RopeRep* __r) - { return (__r->_M_size >= _S_min_len[__r->_M_depth]); } - - static bool _S_is_almost_balanced(_RopeRep* __r) - { return (__r->_M_depth == 0 || - __r->_M_size >= _S_min_len[__r->_M_depth - 1]); } - - static bool _S_is_roughly_balanced(_RopeRep* __r) - { return (__r->_M_depth <= 1 || - __r->_M_size >= _S_min_len[__r->_M_depth - 2]); } - - // Assumes the result is not empty. - static _RopeRep* _S_concat_and_set_balanced(_RopeRep* __left, - _RopeRep* __right) - { - _RopeRep* __result = _S_concat(__left, __right); - if (_S_is_balanced(__result)) __result->_M_is_balanced = true; - return __result; - } - - // The basic rebalancing operation. Logically copies the - // rope. The result has refcount of 1. The client will - // usually decrement the reference count of __r. - // The result is within height 2 of balanced by the above - // definition. - static _RopeRep* _S_balance(_RopeRep* __r); - - // Add all unbalanced subtrees to the forest of balanceed trees. - // Used only by balance. - static void _S_add_to_forest(_RopeRep*__r, _RopeRep** __forest); - - // Add __r to forest, assuming __r is already balanced. - static void _S_add_leaf_to_forest(_RopeRep* __r, _RopeRep** __forest); - - // Print to stdout, exposing structure - static void _S_dump(_RopeRep* __r, int __indent = 0); - - // Return -1, 0, or 1 if __x < __y, __x == __y, or __x > __y resp. - static int _S_compare(const _RopeRep* __x, const _RopeRep* __y); - - public: - bool empty() const { return 0 == _M_tree_ptr; } - - // Comparison member function. This is public only for those - // clients that need a ternary comparison. Others - // should use the comparison operators below. - int compare(const rope& __y) const { - return _S_compare(_M_tree_ptr, __y._M_tree_ptr); - } - - rope(const _CharT* __s, const allocator_type& __a = allocator_type()) - : _Base(__STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, _S_char_ptr_len(__s), - __a),__a) - { } - - rope(const _CharT* __s, size_t __len, - const allocator_type& __a = allocator_type()) - : _Base(__STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __len, __a), __a) - { } - - // Should perhaps be templatized with respect to the iterator type - // and use Sequence_buffer. (It should perhaps use sequence_buffer - // even now.) - rope(const _CharT *__s, const _CharT *__e, - const allocator_type& __a = allocator_type()) - : _Base(__STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __e - __s, __a), __a) - { } - - rope(const const_iterator& __s, const const_iterator& __e, - const allocator_type& __a = allocator_type()) - : _Base(_S_substring(__s._M_root, __s._M_current_pos, - __e._M_current_pos), __a) - { } - - rope(const iterator& __s, const iterator& __e, - const allocator_type& __a = allocator_type()) - : _Base(_S_substring(__s._M_root, __s._M_current_pos, - __e._M_current_pos), __a) - { } - - rope(_CharT __c, const allocator_type& __a = allocator_type()) - : _Base(__a) - { - _CharT* __buf = _Data_allocate(_S_rounded_up_size(1)); - - std::_Construct(__buf, __c); - try { - _M_tree_ptr = _S_new_RopeLeaf(__buf, 1, __a); - } - catch(...) - { - _RopeRep::__STL_FREE_STRING(__buf, 1, __a); - __throw_exception_again; - } - } - - rope(size_t __n, _CharT __c, - const allocator_type& __a = allocator_type()); - - rope(const allocator_type& __a = allocator_type()) - : _Base(0, __a) {} - - // Construct a rope from a function that can compute its members - rope(char_producer<_CharT> *__fn, size_t __len, bool __delete_fn, - const allocator_type& __a = allocator_type()) - : _Base(__a) - { - _M_tree_ptr = (0 == __len) ? - 0 : _S_new_RopeFunction(__fn, __len, __delete_fn, __a); - } - - rope(const rope& __x, const allocator_type& __a = allocator_type()) - : _Base(__x._M_tree_ptr, __a) - { - _S_ref(_M_tree_ptr); - } - - ~rope() - { - _S_unref(_M_tree_ptr); - } - - rope& operator=(const rope& __x) - { - _RopeRep* __old = _M_tree_ptr; - _M_tree_ptr = __x._M_tree_ptr; - _S_ref(_M_tree_ptr); - _S_unref(__old); - return(*this); - } - - void clear() - { - _S_unref(_M_tree_ptr); - _M_tree_ptr = 0; - } - - void push_back(_CharT __x) - { - _RopeRep* __old = _M_tree_ptr; - _M_tree_ptr = _S_destr_concat_char_iter(_M_tree_ptr, &__x, 1); - _S_unref(__old); - } - - void pop_back() - { - _RopeRep* __old = _M_tree_ptr; - _M_tree_ptr = - _S_substring(_M_tree_ptr, 0, _M_tree_ptr->_M_size - 1); - _S_unref(__old); - } - - _CharT back() const - { - return _S_fetch(_M_tree_ptr, _M_tree_ptr->_M_size - 1); - } - - void push_front(_CharT __x) - { - _RopeRep* __old = _M_tree_ptr; - _RopeRep* __left = - __STL_ROPE_FROM_UNOWNED_CHAR_PTR(&__x, 1, get_allocator()); - try { - _M_tree_ptr = _S_concat(__left, _M_tree_ptr); - _S_unref(__old); - _S_unref(__left); - } - catch(...) - { - _S_unref(__left); - __throw_exception_again; - } - } - - void pop_front() - { - _RopeRep* __old = _M_tree_ptr; - _M_tree_ptr = _S_substring(_M_tree_ptr, 1, _M_tree_ptr->_M_size); - _S_unref(__old); - } - - _CharT front() const - { - return _S_fetch(_M_tree_ptr, 0); - } - - void balance() - { - _RopeRep* __old = _M_tree_ptr; - _M_tree_ptr = _S_balance(_M_tree_ptr); - _S_unref(__old); - } - - void copy(_CharT* __buffer) const { - _Destroy(__buffer, __buffer + size()); - _S_flatten(_M_tree_ptr, __buffer); - } - - // This is the copy function from the standard, but - // with the arguments reordered to make it consistent with the - // rest of the interface. - // Note that this guaranteed not to compile if the draft standard - // order is assumed. - size_type copy(size_type __pos, size_type __n, _CharT* __buffer) const - { - size_t __size = size(); - size_t __len = (__pos + __n > __size? __size - __pos : __n); - - _Destroy(__buffer, __buffer + __len); - _S_flatten(_M_tree_ptr, __pos, __len, __buffer); - return __len; - } - - // Print to stdout, exposing structure. May be useful for - // performance debugging. - void dump() { - _S_dump(_M_tree_ptr); - } - - // Convert to 0 terminated string in new allocated memory. - // Embedded 0s in the input do not terminate the copy. - const _CharT* c_str() const; - - // As above, but lso use the flattened representation as the - // the new rope representation. - const _CharT* replace_with_c_str(); - - // Reclaim memory for the c_str generated flattened string. - // Intentionally undocumented, since it's hard to say when this - // is safe for multiple threads. - void delete_c_str () { - if (0 == _M_tree_ptr) return; - if (_RopeRep::_S_leaf == _M_tree_ptr->_M_tag && - ((_RopeLeaf*)_M_tree_ptr)->_M_data == - _M_tree_ptr->_M_c_string) { - // Representation shared - return; - } -# ifndef __GC - _M_tree_ptr->_M_free_c_string(); -# endif - _M_tree_ptr->_M_c_string = 0; - } - - _CharT operator[] (size_type __pos) const { - return _S_fetch(_M_tree_ptr, __pos); - } - - _CharT at(size_type __pos) const { - // if (__pos >= size()) throw out_of_range; // XXX - return (*this)[__pos]; - } - - const_iterator begin() const { - return(const_iterator(_M_tree_ptr, 0)); - } - - // An easy way to get a const iterator from a non-const container. - const_iterator const_begin() const { - return(const_iterator(_M_tree_ptr, 0)); - } - - const_iterator end() const { - return(const_iterator(_M_tree_ptr, size())); - } - - const_iterator const_end() const { - return(const_iterator(_M_tree_ptr, size())); - } - - size_type size() const { - return(0 == _M_tree_ptr? 0 : _M_tree_ptr->_M_size); - } - - size_type length() const { - return size(); - } - - size_type max_size() const { - return _S_min_len[_RopeRep::_S_max_rope_depth-1] - 1; - // Guarantees that the result can be sufficirntly - // balanced. Longer ropes will probably still work, - // but it's harder to make guarantees. - } - - typedef reverse_iterator<const_iterator> const_reverse_iterator; - - const_reverse_iterator rbegin() const { - return const_reverse_iterator(end()); - } - - const_reverse_iterator const_rbegin() const { - return const_reverse_iterator(end()); - } - - const_reverse_iterator rend() const { - return const_reverse_iterator(begin()); - } - - const_reverse_iterator const_rend() const { - return const_reverse_iterator(begin()); - } - - template<class _CharT2, class _Alloc2> - friend rope<_CharT2,_Alloc2> - operator+ (const rope<_CharT2,_Alloc2>& __left, - const rope<_CharT2,_Alloc2>& __right); - - template<class _CharT2, class _Alloc2> - friend rope<_CharT2,_Alloc2> - operator+ (const rope<_CharT2,_Alloc2>& __left, - const _CharT2* __right); - - template<class _CharT2, class _Alloc2> - friend rope<_CharT2,_Alloc2> - operator+ (const rope<_CharT2,_Alloc2>& __left, _CharT2 __right); - // The symmetric cases are intentionally omitted, since they're presumed - // to be less common, and we don't handle them as well. - - // The following should really be templatized. - // The first argument should be an input iterator or - // forward iterator with value_type _CharT. - rope& append(const _CharT* __iter, size_t __n) { - _RopeRep* __result = - _S_destr_concat_char_iter(_M_tree_ptr, __iter, __n); - _S_unref(_M_tree_ptr); - _M_tree_ptr = __result; - return *this; - } - - rope& append(const _CharT* __c_string) { - size_t __len = _S_char_ptr_len(__c_string); - append(__c_string, __len); - return(*this); - } - - rope& append(const _CharT* __s, const _CharT* __e) { - _RopeRep* __result = - _S_destr_concat_char_iter(_M_tree_ptr, __s, __e - __s); - _S_unref(_M_tree_ptr); - _M_tree_ptr = __result; - return *this; - } - - rope& append(const_iterator __s, const_iterator __e) { - _Self_destruct_ptr __appendee(_S_substring( - __s._M_root, __s._M_current_pos, __e._M_current_pos)); - _RopeRep* __result = - _S_concat(_M_tree_ptr, (_RopeRep*)__appendee); - _S_unref(_M_tree_ptr); - _M_tree_ptr = __result; - return *this; - } - - rope& append(_CharT __c) { - _RopeRep* __result = - _S_destr_concat_char_iter(_M_tree_ptr, &__c, 1); - _S_unref(_M_tree_ptr); - _M_tree_ptr = __result; - return *this; - } - - rope& append() { return append(_CharT()); } // XXX why? - - rope& append(const rope& __y) { - _RopeRep* __result = _S_concat(_M_tree_ptr, __y._M_tree_ptr); - _S_unref(_M_tree_ptr); - _M_tree_ptr = __result; - return *this; - } - - rope& append(size_t __n, _CharT __c) { - rope<_CharT,_Alloc> __last(__n, __c); - return append(__last); - } - - void swap(rope& __b) { - _RopeRep* __tmp = _M_tree_ptr; - _M_tree_ptr = __b._M_tree_ptr; - __b._M_tree_ptr = __tmp; - } - - - protected: - // Result is included in refcount. - static _RopeRep* replace(_RopeRep* __old, size_t __pos1, - size_t __pos2, _RopeRep* __r) { - if (0 == __old) { _S_ref(__r); return __r; } - _Self_destruct_ptr __left( - _S_substring(__old, 0, __pos1)); - _Self_destruct_ptr __right( - _S_substring(__old, __pos2, __old->_M_size)); - _RopeRep* __result; - - if (0 == __r) { - __result = _S_concat(__left, __right); - } else { - _Self_destruct_ptr __left_result(_S_concat(__left, __r)); - __result = _S_concat(__left_result, __right); - } - return __result; - } - - public: - void insert(size_t __p, const rope& __r) { - _RopeRep* __result = - replace(_M_tree_ptr, __p, __p, __r._M_tree_ptr); - _S_unref(_M_tree_ptr); - _M_tree_ptr = __result; - } - - void insert(size_t __p, size_t __n, _CharT __c) { - rope<_CharT,_Alloc> __r(__n,__c); - insert(__p, __r); - } - - void insert(size_t __p, const _CharT* __i, size_t __n) { - _Self_destruct_ptr __left(_S_substring(_M_tree_ptr, 0, __p)); - _Self_destruct_ptr __right(_S_substring(_M_tree_ptr, __p, size())); - _Self_destruct_ptr __left_result( - _S_concat_char_iter(__left, __i, __n)); - // _S_ destr_concat_char_iter should be safe here. - // But as it stands it's probably not a win, since __left - // is likely to have additional references. - _RopeRep* __result = _S_concat(__left_result, __right); - _S_unref(_M_tree_ptr); - _M_tree_ptr = __result; - } - - void insert(size_t __p, const _CharT* __c_string) { - insert(__p, __c_string, _S_char_ptr_len(__c_string)); - } - - void insert(size_t __p, _CharT __c) { - insert(__p, &__c, 1); - } - - void insert(size_t __p) { - _CharT __c = _CharT(); - insert(__p, &__c, 1); - } - - void insert(size_t __p, const _CharT* __i, const _CharT* __j) { - rope __r(__i, __j); - insert(__p, __r); - } - - void insert(size_t __p, const const_iterator& __i, - const const_iterator& __j) { - rope __r(__i, __j); - insert(__p, __r); - } - - void insert(size_t __p, const iterator& __i, - const iterator& __j) { - rope __r(__i, __j); - insert(__p, __r); - } - - // (position, length) versions of replace operations: - - void replace(size_t __p, size_t __n, const rope& __r) { - _RopeRep* __result = - replace(_M_tree_ptr, __p, __p + __n, __r._M_tree_ptr); - _S_unref(_M_tree_ptr); - _M_tree_ptr = __result; - } - - void replace(size_t __p, size_t __n, - const _CharT* __i, size_t __i_len) { - rope __r(__i, __i_len); - replace(__p, __n, __r); - } - - void replace(size_t __p, size_t __n, _CharT __c) { - rope __r(__c); - replace(__p, __n, __r); - } - - void replace(size_t __p, size_t __n, const _CharT* __c_string) { - rope __r(__c_string); - replace(__p, __n, __r); - } - - void replace(size_t __p, size_t __n, - const _CharT* __i, const _CharT* __j) { - rope __r(__i, __j); - replace(__p, __n, __r); - } - - void replace(size_t __p, size_t __n, - const const_iterator& __i, const const_iterator& __j) { - rope __r(__i, __j); - replace(__p, __n, __r); - } - - void replace(size_t __p, size_t __n, - const iterator& __i, const iterator& __j) { - rope __r(__i, __j); - replace(__p, __n, __r); - } - - // Single character variants: - void replace(size_t __p, _CharT __c) { - iterator __i(this, __p); - *__i = __c; - } - - void replace(size_t __p, const rope& __r) { - replace(__p, 1, __r); - } - - void replace(size_t __p, const _CharT* __i, size_t __i_len) { - replace(__p, 1, __i, __i_len); - } - - void replace(size_t __p, const _CharT* __c_string) { - replace(__p, 1, __c_string); - } - - void replace(size_t __p, const _CharT* __i, const _CharT* __j) { - replace(__p, 1, __i, __j); - } - - void replace(size_t __p, const const_iterator& __i, - const const_iterator& __j) { - replace(__p, 1, __i, __j); - } - - void replace(size_t __p, const iterator& __i, - const iterator& __j) { - replace(__p, 1, __i, __j); - } - - // Erase, (position, size) variant. - void erase(size_t __p, size_t __n) { - _RopeRep* __result = replace(_M_tree_ptr, __p, __p + __n, 0); - _S_unref(_M_tree_ptr); - _M_tree_ptr = __result; - } - - // Erase, single character - void erase(size_t __p) { - erase(__p, __p + 1); - } - - // Insert, iterator variants. - iterator insert(const iterator& __p, const rope& __r) - { insert(__p.index(), __r); return __p; } - iterator insert(const iterator& __p, size_t __n, _CharT __c) - { insert(__p.index(), __n, __c); return __p; } - iterator insert(const iterator& __p, _CharT __c) - { insert(__p.index(), __c); return __p; } - iterator insert(const iterator& __p ) - { insert(__p.index()); return __p; } - iterator insert(const iterator& __p, const _CharT* c_string) - { insert(__p.index(), c_string); return __p; } - iterator insert(const iterator& __p, const _CharT* __i, size_t __n) - { insert(__p.index(), __i, __n); return __p; } - iterator insert(const iterator& __p, const _CharT* __i, - const _CharT* __j) - { insert(__p.index(), __i, __j); return __p; } - iterator insert(const iterator& __p, - const const_iterator& __i, const const_iterator& __j) - { insert(__p.index(), __i, __j); return __p; } - iterator insert(const iterator& __p, - const iterator& __i, const iterator& __j) - { insert(__p.index(), __i, __j); return __p; } - - // Replace, range variants. - void replace(const iterator& __p, const iterator& __q, - const rope& __r) - { replace(__p.index(), __q.index() - __p.index(), __r); } - void replace(const iterator& __p, const iterator& __q, _CharT __c) - { replace(__p.index(), __q.index() - __p.index(), __c); } - void replace(const iterator& __p, const iterator& __q, - const _CharT* __c_string) - { replace(__p.index(), __q.index() - __p.index(), __c_string); } - void replace(const iterator& __p, const iterator& __q, - const _CharT* __i, size_t __n) - { replace(__p.index(), __q.index() - __p.index(), __i, __n); } - void replace(const iterator& __p, const iterator& __q, - const _CharT* __i, const _CharT* __j) - { replace(__p.index(), __q.index() - __p.index(), __i, __j); } - void replace(const iterator& __p, const iterator& __q, - const const_iterator& __i, const const_iterator& __j) - { replace(__p.index(), __q.index() - __p.index(), __i, __j); } - void replace(const iterator& __p, const iterator& __q, - const iterator& __i, const iterator& __j) - { replace(__p.index(), __q.index() - __p.index(), __i, __j); } - - // Replace, iterator variants. - void replace(const iterator& __p, const rope& __r) - { replace(__p.index(), __r); } - void replace(const iterator& __p, _CharT __c) - { replace(__p.index(), __c); } - void replace(const iterator& __p, const _CharT* __c_string) - { replace(__p.index(), __c_string); } - void replace(const iterator& __p, const _CharT* __i, size_t __n) - { replace(__p.index(), __i, __n); } - void replace(const iterator& __p, const _CharT* __i, const _CharT* __j) - { replace(__p.index(), __i, __j); } - void replace(const iterator& __p, const_iterator __i, - const_iterator __j) - { replace(__p.index(), __i, __j); } - void replace(const iterator& __p, iterator __i, iterator __j) - { replace(__p.index(), __i, __j); } - - // Iterator and range variants of erase - iterator erase(const iterator& __p, const iterator& __q) { - size_t __p_index = __p.index(); - erase(__p_index, __q.index() - __p_index); - return iterator(this, __p_index); - } - iterator erase(const iterator& __p) { - size_t __p_index = __p.index(); - erase(__p_index, 1); - return iterator(this, __p_index); - } - - rope substr(size_t __start, size_t __len = 1) const { - return rope<_CharT,_Alloc>( - _S_substring(_M_tree_ptr, __start, __start + __len)); - } - - rope substr(iterator __start, iterator __end) const { - return rope<_CharT,_Alloc>( - _S_substring(_M_tree_ptr, __start.index(), __end.index())); - } - - rope substr(iterator __start) const { - size_t __pos = __start.index(); - return rope<_CharT,_Alloc>( - _S_substring(_M_tree_ptr, __pos, __pos + 1)); - } - - rope substr(const_iterator __start, const_iterator __end) const { - // This might eventually take advantage of the cache in the - // iterator. - return rope<_CharT,_Alloc>( - _S_substring(_M_tree_ptr, __start.index(), __end.index())); - } - - rope<_CharT,_Alloc> substr(const_iterator __start) { - size_t __pos = __start.index(); - return rope<_CharT,_Alloc>( - _S_substring(_M_tree_ptr, __pos, __pos + 1)); - } - - static const size_type npos; - - size_type find(_CharT __c, size_type __pos = 0) const; - size_type find(const _CharT* __s, size_type __pos = 0) const { - size_type __result_pos; - const_iterator __result = - std::search(const_begin() + __pos, const_end(), - __s, __s + _S_char_ptr_len(__s)); - __result_pos = __result.index(); -# ifndef __STL_OLD_ROPE_SEMANTICS - if (__result_pos == size()) __result_pos = npos; -# endif - return __result_pos; - } - - iterator mutable_begin() { - return(iterator(this, 0)); - } - - iterator mutable_end() { - return(iterator(this, size())); - } - - typedef reverse_iterator<iterator> reverse_iterator; - - reverse_iterator mutable_rbegin() { - return reverse_iterator(mutable_end()); - } - - reverse_iterator mutable_rend() { - return reverse_iterator(mutable_begin()); - } - - reference mutable_reference_at(size_type __pos) { - return reference(this, __pos); - } - -# ifdef __STD_STUFF - reference operator[] (size_type __pos) { - return _char_ref_proxy(this, __pos); - } - - reference at(size_type __pos) { - // if (__pos >= size()) throw out_of_range; // XXX - return (*this)[__pos]; - } - - void resize(size_type __n, _CharT __c) {} - void resize(size_type __n) {} - void reserve(size_type __res_arg = 0) {} - size_type capacity() const { - return max_size(); - } - - // Stuff below this line is dangerous because it's error prone. - // I would really like to get rid of it. - // copy function with funny arg ordering. - size_type copy(_CharT* __buffer, size_type __n, - size_type __pos = 0) const { - return copy(__pos, __n, __buffer); - } - - iterator end() { return mutable_end(); } - - iterator begin() { return mutable_begin(); } - - reverse_iterator rend() { return mutable_rend(); } - - reverse_iterator rbegin() { return mutable_rbegin(); } - -# else - - const_iterator end() { return const_end(); } - - const_iterator begin() { return const_begin(); } - - const_reverse_iterator rend() { return const_rend(); } - - const_reverse_iterator rbegin() { return const_rbegin(); } - -# endif - -}; - -template <class _CharT, class _Alloc> -const typename rope<_CharT, _Alloc>::size_type rope<_CharT, _Alloc>::npos = - (size_type)(-1); - -template <class _CharT, class _Alloc> -inline bool operator== (const _Rope_const_iterator<_CharT,_Alloc>& __x, - const _Rope_const_iterator<_CharT,_Alloc>& __y) { - return (__x._M_current_pos == __y._M_current_pos && - __x._M_root == __y._M_root); -} - -template <class _CharT, class _Alloc> -inline bool operator< (const _Rope_const_iterator<_CharT,_Alloc>& __x, - const _Rope_const_iterator<_CharT,_Alloc>& __y) { - return (__x._M_current_pos < __y._M_current_pos); -} - -template <class _CharT, class _Alloc> -inline bool operator!= (const _Rope_const_iterator<_CharT,_Alloc>& __x, - const _Rope_const_iterator<_CharT,_Alloc>& __y) { - return !(__x == __y); -} - -template <class _CharT, class _Alloc> -inline bool operator> (const _Rope_const_iterator<_CharT,_Alloc>& __x, - const _Rope_const_iterator<_CharT,_Alloc>& __y) { - return __y < __x; -} - -template <class _CharT, class _Alloc> -inline bool operator<= (const _Rope_const_iterator<_CharT,_Alloc>& __x, - const _Rope_const_iterator<_CharT,_Alloc>& __y) { - return !(__y < __x); -} - -template <class _CharT, class _Alloc> -inline bool operator>= (const _Rope_const_iterator<_CharT,_Alloc>& __x, - const _Rope_const_iterator<_CharT,_Alloc>& __y) { - return !(__x < __y); -} - -template <class _CharT, class _Alloc> -inline ptrdiff_t operator-(const _Rope_const_iterator<_CharT,_Alloc>& __x, - const _Rope_const_iterator<_CharT,_Alloc>& __y) { - return (ptrdiff_t)__x._M_current_pos - (ptrdiff_t)__y._M_current_pos; -} - -template <class _CharT, class _Alloc> -inline _Rope_const_iterator<_CharT,_Alloc> -operator-(const _Rope_const_iterator<_CharT,_Alloc>& __x, ptrdiff_t __n) { - return _Rope_const_iterator<_CharT,_Alloc>( - __x._M_root, __x._M_current_pos - __n); -} - -template <class _CharT, class _Alloc> -inline _Rope_const_iterator<_CharT,_Alloc> -operator+(const _Rope_const_iterator<_CharT,_Alloc>& __x, ptrdiff_t __n) { - return _Rope_const_iterator<_CharT,_Alloc>( - __x._M_root, __x._M_current_pos + __n); -} - -template <class _CharT, class _Alloc> -inline _Rope_const_iterator<_CharT,_Alloc> -operator+(ptrdiff_t __n, const _Rope_const_iterator<_CharT,_Alloc>& __x) { - return _Rope_const_iterator<_CharT,_Alloc>( - __x._M_root, __x._M_current_pos + __n); -} - -template <class _CharT, class _Alloc> -inline bool operator== (const _Rope_iterator<_CharT,_Alloc>& __x, - const _Rope_iterator<_CharT,_Alloc>& __y) { - return (__x._M_current_pos == __y._M_current_pos && - __x._M_root_rope == __y._M_root_rope); -} - -template <class _CharT, class _Alloc> -inline bool operator< (const _Rope_iterator<_CharT,_Alloc>& __x, - const _Rope_iterator<_CharT,_Alloc>& __y) { - return (__x._M_current_pos < __y._M_current_pos); -} - -template <class _CharT, class _Alloc> -inline bool operator!= (const _Rope_iterator<_CharT,_Alloc>& __x, - const _Rope_iterator<_CharT,_Alloc>& __y) { - return !(__x == __y); -} - -template <class _CharT, class _Alloc> -inline bool operator> (const _Rope_iterator<_CharT,_Alloc>& __x, - const _Rope_iterator<_CharT,_Alloc>& __y) { - return __y < __x; -} - -template <class _CharT, class _Alloc> -inline bool operator<= (const _Rope_iterator<_CharT,_Alloc>& __x, - const _Rope_iterator<_CharT,_Alloc>& __y) { - return !(__y < __x); -} - -template <class _CharT, class _Alloc> -inline bool operator>= (const _Rope_iterator<_CharT,_Alloc>& __x, - const _Rope_iterator<_CharT,_Alloc>& __y) { - return !(__x < __y); -} - -template <class _CharT, class _Alloc> -inline ptrdiff_t operator-(const _Rope_iterator<_CharT,_Alloc>& __x, - const _Rope_iterator<_CharT,_Alloc>& __y) { - return (ptrdiff_t)__x._M_current_pos - (ptrdiff_t)__y._M_current_pos; -} - -template <class _CharT, class _Alloc> -inline _Rope_iterator<_CharT,_Alloc> -operator-(const _Rope_iterator<_CharT,_Alloc>& __x, - ptrdiff_t __n) { - return _Rope_iterator<_CharT,_Alloc>( - __x._M_root_rope, __x._M_current_pos - __n); -} - -template <class _CharT, class _Alloc> -inline _Rope_iterator<_CharT,_Alloc> -operator+(const _Rope_iterator<_CharT,_Alloc>& __x, - ptrdiff_t __n) { - return _Rope_iterator<_CharT,_Alloc>( - __x._M_root_rope, __x._M_current_pos + __n); -} - -template <class _CharT, class _Alloc> -inline _Rope_iterator<_CharT,_Alloc> -operator+(ptrdiff_t __n, const _Rope_iterator<_CharT,_Alloc>& __x) { - return _Rope_iterator<_CharT,_Alloc>( - __x._M_root_rope, __x._M_current_pos + __n); -} - -template <class _CharT, class _Alloc> -inline -rope<_CharT,_Alloc> -operator+ (const rope<_CharT,_Alloc>& __left, - const rope<_CharT,_Alloc>& __right) -{ - return rope<_CharT,_Alloc>( - rope<_CharT,_Alloc>::_S_concat(__left._M_tree_ptr, __right._M_tree_ptr)); - // Inlining this should make it possible to keep __left and - // __right in registers. -} - -template <class _CharT, class _Alloc> -inline -rope<_CharT,_Alloc>& -operator+= (rope<_CharT,_Alloc>& __left, - const rope<_CharT,_Alloc>& __right) -{ - __left.append(__right); - return __left; -} - -template <class _CharT, class _Alloc> -inline -rope<_CharT,_Alloc> -operator+ (const rope<_CharT,_Alloc>& __left, - const _CharT* __right) { - size_t __rlen = rope<_CharT,_Alloc>::_S_char_ptr_len(__right); - return rope<_CharT,_Alloc>( - rope<_CharT,_Alloc>::_S_concat_char_iter( - __left._M_tree_ptr, __right, __rlen)); -} - -template <class _CharT, class _Alloc> -inline -rope<_CharT,_Alloc>& -operator+= (rope<_CharT,_Alloc>& __left, - const _CharT* __right) { - __left.append(__right); - return __left; -} - -template <class _CharT, class _Alloc> -inline -rope<_CharT,_Alloc> -operator+ (const rope<_CharT,_Alloc>& __left, _CharT __right) { - return rope<_CharT,_Alloc>( - rope<_CharT,_Alloc>::_S_concat_char_iter( - __left._M_tree_ptr, &__right, 1)); -} - -template <class _CharT, class _Alloc> -inline -rope<_CharT,_Alloc>& -operator+= (rope<_CharT,_Alloc>& __left, _CharT __right) { - __left.append(__right); - return __left; -} - -template <class _CharT, class _Alloc> -bool -operator< (const rope<_CharT,_Alloc>& __left, - const rope<_CharT,_Alloc>& __right) { - return __left.compare(__right) < 0; -} - -template <class _CharT, class _Alloc> -bool -operator== (const rope<_CharT,_Alloc>& __left, - const rope<_CharT,_Alloc>& __right) { - return __left.compare(__right) == 0; -} - -template <class _CharT, class _Alloc> -inline bool operator== (const _Rope_char_ptr_proxy<_CharT,_Alloc>& __x, - const _Rope_char_ptr_proxy<_CharT,_Alloc>& __y) { - return (__x._M_pos == __y._M_pos && __x._M_root == __y._M_root); -} - -template <class _CharT, class _Alloc> -inline bool -operator!= (const rope<_CharT,_Alloc>& __x, const rope<_CharT,_Alloc>& __y) { - return !(__x == __y); -} - -template <class _CharT, class _Alloc> -inline bool -operator> (const rope<_CharT,_Alloc>& __x, const rope<_CharT,_Alloc>& __y) { - return __y < __x; -} - -template <class _CharT, class _Alloc> -inline bool -operator<= (const rope<_CharT,_Alloc>& __x, const rope<_CharT,_Alloc>& __y) { - return !(__y < __x); -} - -template <class _CharT, class _Alloc> -inline bool -operator>= (const rope<_CharT,_Alloc>& __x, const rope<_CharT,_Alloc>& __y) { - return !(__x < __y); -} - -template <class _CharT, class _Alloc> -inline bool operator!= (const _Rope_char_ptr_proxy<_CharT,_Alloc>& __x, - const _Rope_char_ptr_proxy<_CharT,_Alloc>& __y) { - return !(__x == __y); -} - -template<class _CharT, class _Traits, class _Alloc> -std::basic_ostream<_CharT, _Traits>& operator<< - (std::basic_ostream<_CharT, _Traits>& __o, - const rope<_CharT, _Alloc>& __r); - -typedef rope<char> crope; -typedef rope<wchar_t> wrope; - -inline crope::reference __mutable_reference_at(crope& __c, size_t __i) -{ - return __c.mutable_reference_at(__i); -} - -inline wrope::reference __mutable_reference_at(wrope& __c, size_t __i) -{ - return __c.mutable_reference_at(__i); -} - -template <class _CharT, class _Alloc> -inline void swap(rope<_CharT,_Alloc>& __x, rope<_CharT,_Alloc>& __y) { - __x.swap(__y); -} - -// Hash functions should probably be revisited later: -template<> struct hash<crope> -{ - size_t operator()(const crope& __str) const - { - size_t __size = __str.size(); - - if (0 == __size) return 0; - return 13*__str[0] + 5*__str[__size - 1] + __size; - } -}; - - -template<> struct hash<wrope> -{ - size_t operator()(const wrope& __str) const - { - size_t __size = __str.size(); - - if (0 == __size) return 0; - return 13*__str[0] + 5*__str[__size - 1] + __size; - } -}; - -} // namespace __gnu_cxx - -# include <ext/ropeimpl.h> - -# endif /* __SGI_STL_INTERNAL_ROPE_H */ - -// Local Variables: -// mode:C++ -// End: |
