libstdc++: utility Source File

libstdc++

experimental/utility
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1// <experimental/utility> -*- C++ -*-
2
3// Copyright (C) 2015-2026 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library. This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 3, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14// GNU General Public License for more details.
15
16// Under Section 7 of GPL version 3, you are granted additional
17// permissions described in the GCC Runtime Library Exception, version
18// 3.1, as published by the Free Software Foundation.
19
20// You should have received a copy of the GNU General Public License and
21// a copy of the GCC Runtime Library Exception along with this program;
22// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23// <http://www.gnu.org/licenses/>.
24
25/** @file experimental/utility
26 * This is a TS C++ Library header.
27 * @ingroup libfund-ts
28 */
29
30#ifndef _GLIBCXX_EXPERIMENTAL_UTILITY
31#define _GLIBCXX_EXPERIMENTAL_UTILITY 1
32
33#include <bits/requires_hosted.h> // experimental is currently omitted
34
35#if __cplusplus >= 201402L
36#include <utility>
37#include <bits/uses_allocator.h>
38#include <experimental/bits/lfts_config.h>
39
40namespace std {
41_GLIBCXX_BEGIN_NAMESPACE_VERSION
42
43namespace experimental {
44inline namespace fundamentals_v2 {
45 // 3.1.2, erased-type placeholder
46 using erased_type = std::__erased_type;
47} // namespace fundamentals_v2
48} // namespace experimental
49
50_GLIBCXX_END_NAMESPACE_VERSION
51} // namespace std
52
53#endif // C++14
54#endif // _GLIBCXX_EXPERIMENTAL_UTILITY
requires_hosted.h
lfts_config.h
std
ISO C++ entities toplevel namespace is std.
std::experimental
Namespace for features defined in ISO Technical Specifications.
utility