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ðŸ“„ boost_concept_check.h(26.52 KB)
ðŸ“„ c++0x_warning.h(1.44 KB)
ðŸ“„ char_traits.h(20.42 KB)
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ðŸ“„ exception_defines.h(1.61 KB)
ðŸ“„ exception_ptr.h(5.84 KB)
ðŸ“„ forward_list.h(47.77 KB)
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ðŸ“„ fstream.tcc(32.03 KB)
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ðŸ“„ invoke.h(3.57 KB)
ðŸ“„ ios_base.h(30.3 KB)
ðŸ“„ istream.tcc(30.36 KB)
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ðŸ“„ locale_facets_nonio.tcc(44.22 KB)
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ðŸ“„ move.h(6.38 KB)
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ðŸ“„ sstream.tcc(9.9 KB)
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ðŸ“„ std_function.h(22.71 KB)
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ðŸ“„ stl_algo.h(209.27 KB)
ðŸ“„ stl_algobase.h(49.31 KB)
ðŸ“„ stl_bvector.h(32.94 KB)
ðŸ“„ stl_construct.h(7.22 KB)
ðŸ“„ stl_deque.h(76.73 KB)
ðŸ“„ stl_function.h(40.77 KB)
ðŸ“„ stl_heap.h(19.73 KB)
ðŸ“„ stl_iterator.h(41.3 KB)
ðŸ“„ stl_iterator_base_funcs.h(7.99 KB)
ðŸ“„ stl_iterator_base_types.h(8.48 KB)
ðŸ“„ stl_list.h(65.97 KB)
ðŸ“„ stl_map.h(51.55 KB)
ðŸ“„ stl_multimap.h(40.58 KB)
ðŸ“„ stl_multiset.h(34.97 KB)
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ðŸ“„ stl_pair.h(18.21 KB)
ðŸ“„ stl_queue.h(23.51 KB)
ðŸ“„ stl_raw_storage_iter.h(3.74 KB)
ðŸ“„ stl_relops.h(4.49 KB)
ðŸ“„ stl_set.h(35.28 KB)
ðŸ“„ stl_stack.h(11.66 KB)
ðŸ“„ stl_tempbuf.h(8.15 KB)
ðŸ“„ stl_tree.h(73.15 KB)
ðŸ“„ stl_uninitialized.h(27.06 KB)
ðŸ“„ stl_vector.h(59.12 KB)
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ðŸ“„ streambuf.tcc(4.81 KB)
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ðŸ“„ stringfwd.h(2.55 KB)
ðŸ“„ uniform_int_dist.h(9.84 KB)
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ðŸ“„ unordered_map.h(73.58 KB)
ðŸ“„ unordered_set.h(57.76 KB)
ðŸ“„ uses_allocator.h(6.37 KB)
ðŸ“„ valarray_after.h(22.12 KB)
ðŸ“„ valarray_array.h(21.3 KB)
ðŸ“„ valarray_array.tcc(7.08 KB)
ðŸ“„ valarray_before.h(18.08 KB)
ðŸ“„ vector.tcc(28.95 KB)

Editing: uses_allocator.h

// Uses-allocator Construction -*- C++ -*-

// Copyright (C) 2010-2018 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>
#include <bits/move.h>

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

struct __erased_type { };

template<typename _Alloc, typename _Tp>
    using __is_erased_or_convertible
      = __or_<is_same<_Tp, __erased_type>, is_convertible<_Alloc, _Tp>>;

/// [allocator.tag]
  struct allocator_arg_t { explicit allocator_arg_t() = default; };

_GLIBCXX17_INLINE constexpr allocator_arg_t allocator_arg =
    allocator_arg_t();

template<typename _Tp, typename _Alloc, typename = __void_t<>>
    struct __uses_allocator_helper
    : false_type { };

template<typename _Tp, typename _Alloc>
    struct __uses_allocator_helper<_Tp, _Alloc,
				   __void_t<typename _Tp::allocator_type>>
    : __is_erased_or_convertible<_Alloc, typename _Tp::allocator_type>::type
    { };

/// [allocator.uses.trait]
  template<typename _Tp, typename _Alloc>
    struct uses_allocator
    : __uses_allocator_helper<_Tp, _Alloc>::type
    { };

struct __uses_alloc_base { };

struct __uses_alloc0 : __uses_alloc_base
  {
    struct _Sink { void operator=(const void*) { } } _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 _Tp, 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, const _Alloc&, _Args...>::value,
        __uses_alloc1<_Alloc>,
       	__uses_alloc2<_Alloc>>::type
    {
      // _GLIBCXX_RESOLVE_LIB_DEFECTS
      // 2586. Wrong value category used in scoped_allocator_adaptor::construct
      static_assert(__or_<
	  is_constructible<_Tp, allocator_arg_t, const _Alloc&, _Args...>,
	  is_constructible<_Tp, _Args..., const _Alloc&>>::value,
	  "construction with an allocator must be possible"
	  " if uses_allocator is true");
    };

template<typename _Tp, typename _Alloc, typename... _Args>
    struct __uses_alloc<false, _Tp, _Alloc, _Args...>
    : __uses_alloc0 { };

template<typename _Tp, typename _Alloc, typename... _Args>
    using __uses_alloc_t =
      __uses_alloc<uses_allocator<_Tp, _Alloc>::value, _Tp, _Alloc, _Args...>;

template<typename _Tp, typename _Alloc, typename... _Args>
    inline __uses_alloc_t<_Tp, _Alloc, _Args...>
    __use_alloc(const _Alloc& __a)
    {
      __uses_alloc_t<_Tp, _Alloc, _Args...> __ret;
      __ret._M_a = std::__addressof(__a);
      return __ret;
    }

template<typename _Tp, typename _Alloc, typename... _Args>
    void
    __use_alloc(const _Alloc&&) = delete;

#if __cplusplus > 201402L
  template <typename _Tp, typename _Alloc>
    inline constexpr bool uses_allocator_v =
      uses_allocator<_Tp, _Alloc>::value;
#endif // C++17

template<template<typename...> class _Predicate,
	   typename _Tp, typename _Alloc, typename... _Args>
    struct __is_uses_allocator_predicate
    : conditional<uses_allocator<_Tp, _Alloc>::value,
      __or_<_Predicate<_Tp, allocator_arg_t, _Alloc, _Args...>,
	    _Predicate<_Tp, _Args..., _Alloc>>,
      _Predicate<_Tp, _Args...>>::type { };

template<typename _Tp, typename _Alloc, typename... _Args>
    struct __is_uses_allocator_constructible
    : __is_uses_allocator_predicate<is_constructible, _Tp, _Alloc, _Args...>
    { };

#if __cplusplus >= 201402L
  template<typename _Tp, typename _Alloc, typename... _Args>
    _GLIBCXX17_INLINE constexpr bool __is_uses_allocator_constructible_v =
      __is_uses_allocator_constructible<_Tp, _Alloc, _Args...>::value;
#endif // C++14

template<typename _Tp, typename _Alloc, typename... _Args>
    struct __is_nothrow_uses_allocator_constructible
    : __is_uses_allocator_predicate<is_nothrow_constructible,
				    _Tp, _Alloc, _Args...>
    { };

#if __cplusplus >= 201402L
  template<typename _Tp, typename _Alloc, typename... _Args>
    _GLIBCXX17_INLINE constexpr bool
    __is_nothrow_uses_allocator_constructible_v =
      __is_nothrow_uses_allocator_constructible<_Tp, _Alloc, _Args...>::value;
#endif // C++14

template<typename _Tp, typename... _Args>
    void __uses_allocator_construct_impl(__uses_alloc0 __a, _Tp* __ptr,
					 _Args&&... __args)
    { ::new ((void*)__ptr) _Tp(std::forward<_Args>(__args)...); }

template<typename _Tp, typename _Alloc, typename... _Args>
    void __uses_allocator_construct_impl(__uses_alloc1<_Alloc> __a, _Tp* __ptr,
					 _Args&&... __args)
    {
      ::new ((void*)__ptr) _Tp(allocator_arg, *__a._M_a,
			       std::forward<_Args>(__args)...);
    }

template<typename _Tp, typename _Alloc, typename... _Args>
    void __uses_allocator_construct_impl(__uses_alloc2<_Alloc> __a, _Tp* __ptr,
					 _Args&&... __args)
    { ::new ((void*)__ptr) _Tp(std::forward<_Args>(__args)..., *__a._M_a); }

template<typename _Tp, typename _Alloc, typename... _Args>
    void __uses_allocator_construct(const _Alloc& __a, _Tp* __ptr,
				    _Args&&... __args)
    {
      __uses_allocator_construct_impl(__use_alloc<_Tp, _Alloc, _Args...>(__a),
				      __ptr, std::forward<_Args>(__args)...);
    }

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std

#endif
#endif

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