1// Variable Templates For chrono -*- C++ -*-
2
3// Copyright (C) 2014-2022 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/chrono
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_CHRONO
35#define _GLIBCXX_EXPERIMENTAL_CHRONO 1
36
37#pragma GCC system_header
38
39#if __cplusplus >= 201402L
40
41#include <bits/chrono.h> // Only the C++14 parts of <chrono>
42#include <experimental/bits/lfts_config.h>
43
44namespace std _GLIBCXX_VISIBILITY(default)
45{
46_GLIBCXX_BEGIN_NAMESPACE_VERSION
47
48namespace chrono {
49namespace experimental
50{
51inline namespace fundamentals_v1
52{
53// See C++14 20.12.4, customization traits
54template <typename _Rep>
55   constexpr bool treat_as_floating_point_v =
56     treat_as_floating_point<_Rep>::value;
57} // namespace fundamentals_v1
58} // namespace experimental
59} // namespace chrono
60_GLIBCXX_END_NAMESPACE_VERSION
61} // namespace std
62
63#endif // __cplusplus <= 201103L
64
65#endif // _GLIBCXX_EXPERIMENTAL_CHRONO
66