/usr/include/c++/v1/experimental/__memory is in libc++-dev 6.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | // -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_EXPERIMENTAL___MEMORY
#define _LIBCPP_EXPERIMENTAL___MEMORY
#include <experimental/__config>
#include <experimental/utility> // for erased_type
#include <__functional_base>
#include <type_traits>
_LIBCPP_BEGIN_NAMESPACE_LFTS
template <
class _Tp, class _Alloc
, bool = uses_allocator<_Tp, _Alloc>::value
, bool = __has_allocator_type<_Tp>::value
>
struct __lfts_uses_allocator : public false_type {};
template <class _Tp, class _Alloc>
struct __lfts_uses_allocator<_Tp, _Alloc, false, false> : public false_type {};
template <class _Tp, class _Alloc, bool HasAlloc>
struct __lfts_uses_allocator<_Tp, _Alloc, true, HasAlloc> : public true_type {};
template <class _Tp, class _Alloc>
struct __lfts_uses_allocator<_Tp, _Alloc, false, true>
: public integral_constant<bool
, is_convertible<_Alloc, typename _Tp::allocator_type>::value
|| is_same<erased_type, typename _Tp::allocator_type>::value
>
{};
template <bool _UsesAlloc, class _Tp, class _Alloc, class ..._Args>
struct __lfts_uses_alloc_ctor_imp
{
static const int value = 0;
};
template <class _Tp, class _Alloc, class ..._Args>
struct __lfts_uses_alloc_ctor_imp<true, _Tp, _Alloc, _Args...>
{
static const bool __ic_first
= is_constructible<_Tp, allocator_arg_t, _Alloc, _Args...>::value;
static const bool __ic_second =
conditional<
__ic_first,
false_type,
is_constructible<_Tp, _Args..., _Alloc>
>::type::value;
static_assert(__ic_first || __ic_second,
"Request for uses allocator construction is ill-formed");
static const int value = __ic_first ? 1 : 2;
};
template <class _Tp, class _Alloc, class ..._Args>
struct __lfts_uses_alloc_ctor
: integral_constant<int,
__lfts_uses_alloc_ctor_imp<
__lfts_uses_allocator<_Tp, _Alloc>::value
, _Tp, _Alloc, _Args...
>::value
>
{};
template <class _Tp, class _Alloc, class ..._Args>
inline _LIBCPP_INLINE_VISIBILITY
void __lfts_user_alloc_construct(
_Tp * __store, const _Alloc & __a, _Args &&... __args)
{
_VSTD::__user_alloc_construct_impl(
typename __lfts_uses_alloc_ctor<_Tp, _Alloc, _Args...>::type()
, __store, __a, _VSTD::forward<_Args>(__args)...
);
}
_LIBCPP_END_NAMESPACE_LFTS
#endif /* _LIBCPP_EXPERIMENTAL___MEMORY */
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