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Diffstat (limited to 'contrib/libstdc++/stl/type_traits.h')
-rw-r--r-- | contrib/libstdc++/stl/type_traits.h | 373 |
1 files changed, 0 insertions, 373 deletions
diff --git a/contrib/libstdc++/stl/type_traits.h b/contrib/libstdc++/stl/type_traits.h deleted file mode 100644 index b6a7dfc6..0000000 --- a/contrib/libstdc++/stl/type_traits.h +++ /dev/null @@ -1,373 +0,0 @@ -/* - * - * Copyright (c) 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. - */ - -#ifndef __TYPE_TRAITS_H -#define __TYPE_TRAITS_H - -#ifndef __STL_CONFIG_H -#include <stl_config.h> -#endif - -/* -This header file provides a framework for allowing compile time dispatch -based on type attributes. This is useful when writing template code. -For example, when making a copy of an array of an unknown type, it helps -to know if the type has a trivial copy constructor or not, to help decide -if a memcpy can be used. - -The class template __type_traits provides a series of typedefs each of -which is either __true_type or __false_type. The argument to -__type_traits can be any type. The typedefs within this template will -attain their correct values by one of these means: - 1. The general instantiation contain conservative values which work - for all types. - 2. Specializations may be declared to make distinctions between types. - 3. Some compilers (such as the Silicon Graphics N32 and N64 compilers) - will automatically provide the appropriate specializations for all - types. - -EXAMPLE: - -//Copy an array of elements which have non-trivial copy constructors -template <class T> void copy(T* source, T* destination, int n, __false_type); -//Copy an array of elements which have trivial copy constructors. Use memcpy. -template <class T> void copy(T* source, T* destination, int n, __true_type); - -//Copy an array of any type by using the most efficient copy mechanism -template <class T> inline void copy(T* source,T* destination,int n) { - copy(source, destination, n, - typename __type_traits<T>::has_trivial_copy_constructor()); -} -*/ - - -struct __true_type { -}; - -struct __false_type { -}; - -template <class _Tp> -struct __type_traits { - typedef __true_type this_dummy_member_must_be_first; - /* Do not remove this member. It informs a compiler which - automatically specializes __type_traits that this - __type_traits template is special. It just makes sure that - things work if an implementation is using a template - called __type_traits for something unrelated. */ - - /* The following restrictions should be observed for the sake of - compilers which automatically produce type specific specializations - of this class: - - You may reorder the members below if you wish - - You may remove any of the members below if you wish - - You must not rename members without making the corresponding - name change in the compiler - - Members you add will be treated like regular members unless - you add the appropriate support in the compiler. */ - - - typedef __false_type has_trivial_default_constructor; - typedef __false_type has_trivial_copy_constructor; - typedef __false_type has_trivial_assignment_operator; - typedef __false_type has_trivial_destructor; - typedef __false_type is_POD_type; -}; - - - -// Provide some specializations. This is harmless for compilers that -// have built-in __types_traits support, and essential for compilers -// that don't. - -#ifndef __STL_NO_BOOL - -__STL_TEMPLATE_NULL struct __type_traits<bool> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -#endif /* __STL_NO_BOOL */ - -__STL_TEMPLATE_NULL struct __type_traits<char> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -__STL_TEMPLATE_NULL struct __type_traits<signed char> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -__STL_TEMPLATE_NULL struct __type_traits<unsigned char> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -#ifdef __STL_HAS_WCHAR_T - -__STL_TEMPLATE_NULL struct __type_traits<wchar_t> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -#endif /* __STL_HAS_WCHAR_T */ - -__STL_TEMPLATE_NULL struct __type_traits<short> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -__STL_TEMPLATE_NULL struct __type_traits<unsigned short> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -__STL_TEMPLATE_NULL struct __type_traits<int> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -__STL_TEMPLATE_NULL struct __type_traits<unsigned int> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -__STL_TEMPLATE_NULL struct __type_traits<long> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -__STL_TEMPLATE_NULL struct __type_traits<unsigned long> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -#ifdef __STL_LONG_LONG - -__STL_TEMPLATE_NULL struct __type_traits<long long> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -__STL_TEMPLATE_NULL struct __type_traits<unsigned long long> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -#endif /* __STL_LONG_LONG */ - -__STL_TEMPLATE_NULL struct __type_traits<float> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -__STL_TEMPLATE_NULL struct __type_traits<double> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -__STL_TEMPLATE_NULL struct __type_traits<long double> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -#ifdef __STL_CLASS_PARTIAL_SPECIALIZATION - -template <class _Tp> -struct __type_traits<_Tp*> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -#else /* __STL_CLASS_PARTIAL_SPECIALIZATION */ - -__STL_TEMPLATE_NULL struct __type_traits<char*> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -__STL_TEMPLATE_NULL struct __type_traits<signed char*> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -__STL_TEMPLATE_NULL struct __type_traits<unsigned char*> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -__STL_TEMPLATE_NULL struct __type_traits<const char*> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -__STL_TEMPLATE_NULL struct __type_traits<const signed char*> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -__STL_TEMPLATE_NULL struct __type_traits<const unsigned char*> { - typedef __true_type has_trivial_default_constructor; - typedef __true_type has_trivial_copy_constructor; - typedef __true_type has_trivial_assignment_operator; - typedef __true_type has_trivial_destructor; - typedef __true_type is_POD_type; -}; - -#endif /* __STL_CLASS_PARTIAL_SPECIALIZATION */ - - -// The following could be written in terms of numeric_limits. -// We're doing it separately to reduce the number of dependencies. - -template <class _Tp> struct _Is_integer { - typedef __false_type _Integral; -}; - -#ifndef __STL_NO_BOOL - -__STL_TEMPLATE_NULL struct _Is_integer<bool> { - typedef __true_type _Integral; -}; - -#endif /* __STL_NO_BOOL */ - -__STL_TEMPLATE_NULL struct _Is_integer<char> { - typedef __true_type _Integral; -}; - -__STL_TEMPLATE_NULL struct _Is_integer<signed char> { - typedef __true_type _Integral; -}; - -__STL_TEMPLATE_NULL struct _Is_integer<unsigned char> { - typedef __true_type _Integral; -}; - -#ifdef __STL_HAS_WCHAR_T - -__STL_TEMPLATE_NULL struct _Is_integer<wchar_t> { - typedef __true_type _Integral; -}; - -#endif /* __STL_HAS_WCHAR_T */ - -__STL_TEMPLATE_NULL struct _Is_integer<short> { - typedef __true_type _Integral; -}; - -__STL_TEMPLATE_NULL struct _Is_integer<unsigned short> { - typedef __true_type _Integral; -}; - -__STL_TEMPLATE_NULL struct _Is_integer<int> { - typedef __true_type _Integral; -}; - -__STL_TEMPLATE_NULL struct _Is_integer<unsigned int> { - typedef __true_type _Integral; -}; - -__STL_TEMPLATE_NULL struct _Is_integer<long> { - typedef __true_type _Integral; -}; - -__STL_TEMPLATE_NULL struct _Is_integer<unsigned long> { - typedef __true_type _Integral; -}; - -#ifdef __STL_LONG_LONG - -__STL_TEMPLATE_NULL struct _Is_integer<long long> { - typedef __true_type _Integral; -}; - -__STL_TEMPLATE_NULL struct _Is_integer<unsigned long long> { - typedef __true_type _Integral; -}; - -#endif /* __STL_LONG_LONG */ - -#endif /* __TYPE_TRAITS_H */ - -// Local Variables: -// mode:C++ -// End: |