libstdc++: system_error Source File

libstdc++

experimental/system_error
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1// Variable Templates For system_error -*- C++ -*-
2
3// Copyright (C) 2014-2026 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/system_error
26 * This is a TS C++ Library header.
27 * @ingroup libfund-ts
28 */
29
30//
31// N3932 Variable Templates For Type Traits (Revision 1)
32//
33
34#ifndef _GLIBCXX_EXPERIMENTAL_SYSTEM_ERROR
35#define _GLIBCXX_EXPERIMENTAL_SYSTEM_ERROR 1
36
37#ifdef _GLIBCXX_SYSHDR
38#pragma GCC system_header
39#endif
40
41#include <bits/requires_hosted.h> // experimental is currently omitted
42
43#if __cplusplus >= 201402L
44
45#include <system_error>
46#include <experimental/bits/lfts_config.h>
47
48namespace std _GLIBCXX_VISIBILITY(default)
49{
50_GLIBCXX_BEGIN_NAMESPACE_VERSION
51
52namespace experimental
53{
54inline namespace fundamentals_v1
55{
56// See C++14 19.5, System error support
57template <typename _Tp>
58 constexpr bool is_error_code_enum_v = is_error_code_enum<_Tp>::value;
59template <typename _Tp>
60 constexpr bool is_error_condition_enum_v =
61 is_error_condition_enum<_Tp>::value;
62} // namespace fundamentals_v1
63} // namespace experimental
64
65_GLIBCXX_END_NAMESPACE_VERSION
66} // namespace std
67
68#endif // __cplusplus <= 201103L
69
70#endif // _GLIBCXX_EXPERIMENTAL_SYSTEM_ERROR
requires_hosted.h
lfts_config.h
std
ISO C++ entities toplevel namespace is std.
std::experimental
Namespace for features defined in ISO Technical Specifications.
system_error