Tryag File Manager

Home || Turbo Force || B-F Config_Cpanel

// Uses-allocator Construction -*- C++ -*- // Copyright (C) 2010-2013 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 3, 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. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // <http://www.gnu.org/licenses/>. #ifndef _USES_ALLOCATOR_H #define _USES_ALLOCATOR_H 1 #if __cplusplus < 201103L # include <bits/c++0x_warning.h> #else #include <type_traits> namespace std _GLIBCXX_VISIBILITY(default) { _GLIBCXX_BEGIN_NAMESPACE_VERSION /// [allocator.tag] struct allocator_arg_t { }; constexpr allocator_arg_t allocator_arg = allocator_arg_t(); _GLIBCXX_HAS_NESTED_TYPE(allocator_type) template<typename _Tp, typename _Alloc, bool = __has_allocator_type<_Tp>::value> struct __uses_allocator_helper : public false_type { }; template<typename _Tp, typename _Alloc> struct __uses_allocator_helper<_Tp, _Alloc, true> : public integral_constant<bool, is_convertible<_Alloc, typename _Tp::allocator_type>::value> { }; /// [allocator.uses.trait] template<typename _Tp, typename _Alloc> struct uses_allocator : public integral_constant<bool, __uses_allocator_helper<_Tp, _Alloc>::value> { }; template<typename _Tp, typename _Alloc, typename... _Args> struct __uses_allocator_arg : is_constructible<_Tp, _Alloc, _Args...> { static_assert( uses_allocator<_Tp, _Alloc>::value, "uses allocator" ); }; struct __uses_alloc_base { }; struct __uses_alloc0 : __uses_alloc_base { struct _Anything { _Anything(...) { } } _M_a; }; template<typename _Alloc> struct __uses_alloc1 : __uses_alloc_base { const _Alloc* _M_a; }; template<typename _Alloc> struct __uses_alloc2 : __uses_alloc_base { const _Alloc* _M_a; }; template<bool, typename _Alloc, typename... _Args> struct __uses_alloc; template<typename _Tp, typename _Alloc, typename... _Args> struct __uses_alloc<true, _Tp, _Alloc, _Args...> : conditional< is_constructible<_Tp, allocator_arg_t, _Alloc, _Args...>::value, __uses_alloc1<_Alloc>, __uses_alloc2<_Alloc>>::type { }; template<typename _Tp, typename _Alloc, typename... _Args> struct __uses_alloc<false, _Tp, _Alloc, _Args...> : __uses_alloc0 { }; template<typename _Tp, typename _Alloc, typename... _Args> struct __uses_alloc_impl : __uses_alloc<uses_allocator<_Tp, _Alloc>::value, _Tp, _Alloc, _Args...> { }; template<typename _Tp, typename _Alloc, typename... _Args> __uses_alloc_impl<_Tp, _Alloc, _Args...> __use_alloc(const _Alloc& __a) { __uses_alloc_impl<_Tp, _Alloc, _Args...> __ret; __ret._M_a = &__a; return __ret; } _GLIBCXX_END_NAMESPACE_VERSION } // namespace std #endif #endif