1// Variable Templates For chrono -*- C++ -*-
2
3// Copyright (C) 2014-2017 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 */
28
29//
30// N3932 Variable Templates For Type Traits (Revision 1)
31//
32
33#ifndef _GLIBCXX_EXPERIMENTAL_CHRONO
34#define _GLIBCXX_EXPERIMENTAL_CHRONO 1
35
36#pragma GCC system_header
37
38#if __cplusplus >= 201402L
39
40#include <chrono>
41#include <experimental/bits/lfts_config.h>
42
43namespace std _GLIBCXX_VISIBILITY(default)
44{
45namespace chrono {
46namespace experimental
47{
48inline namespace fundamentals_v1
49{
50_GLIBCXX_BEGIN_NAMESPACE_VERSION
51// See C++14 §20.12.4, customization traits
52template <typename _Rep>
53   constexpr bool treat_as_floating_point_v =
54     treat_as_floating_point<_Rep>::value;
55_GLIBCXX_END_NAMESPACE_VERSION
56} // namespace fundamentals_v1
57} // namespace experimental
58} // namespace chrono
59} // namespace std
60
61#endif // __cplusplus <= 201103L
62
63#endif // _GLIBCXX_EXPERIMENTAL_CHRONO
64