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Diffstat (limited to 'contrib/libstdc++/include/backward/defalloc.h')
-rw-r--r-- | contrib/libstdc++/include/backward/defalloc.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/contrib/libstdc++/include/backward/defalloc.h b/contrib/libstdc++/include/backward/defalloc.h new file mode 100644 index 0000000..264e296 --- /dev/null +++ b/contrib/libstdc++/include/backward/defalloc.h @@ -0,0 +1,117 @@ +// Backward-compat support -*- 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) 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. + * + */ + +// Inclusion of this file is DEPRECATED. This is the original HP +// default allocator. It is provided only for backward compatibility. +// This file WILL BE REMOVED in a future release. +// +// DO NOT USE THIS FILE unless you have an old container implementation +// that requires an allocator with the HP-style interface. +// +// Standard-conforming allocators have a very different interface. The +// standard default allocator is declared in the header <memory>. + +#ifndef _CPP_BACKWARD_DEFALLOC_H +#define _CPP_BACKWARD_DEFALLOC_H 1 + +#include "backward_warning.h" +#include "new.h" +#include <stddef.h> +#include <stdlib.h> +#include <limits.h> +#include "iostream.h" +#include "algobase.h" + + +template <class _Tp> +inline _Tp* allocate(ptrdiff_t __size, _Tp*) { + set_new_handler(0); + _Tp* __tmp = (_Tp*)(::operator new((size_t)(__size * sizeof(_Tp)))); + if (__tmp == 0) { + cerr << "out of memory" << endl; + exit(1); + } + return __tmp; +} + + +template <class _Tp> +inline void deallocate(_Tp* __buffer) { + ::operator delete(__buffer); +} + +template <class _Tp> +class allocator { +public: + typedef _Tp value_type; + typedef _Tp* pointer; + typedef const _Tp* const_pointer; + typedef _Tp& reference; + typedef const _Tp& const_reference; + typedef size_t size_type; + typedef ptrdiff_t difference_type; + pointer allocate(size_type __n) { + return ::allocate((difference_type)__n, (pointer)0); + } + void deallocate(pointer __p) { ::deallocate(__p); } + pointer address(reference __x) { return (pointer)&__x; } + const_pointer const_address(const_reference __x) { + return (const_pointer)&__x; + } + size_type init_page_size() { + return max(size_type(1), size_type(4096/sizeof(_Tp))); + } + size_type max_size() const { + return max(size_type(1), size_type(UINT_MAX/sizeof(_Tp))); + } +}; + +class allocator<void> { +public: + typedef void* pointer; +}; + + + +#endif /* _CPP_BACKWARD_DEFALLOC_H */ |