1// -*- C++ -*-
2//===----------------------------------------------------------------------===//
3//
4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5// See https://llvm.org/LICENSE.txt for license information.
6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef _LIBCPP___CHRONO_LITERALS_H
11#define _LIBCPP___CHRONO_LITERALS_H
12
13#include <__chrono/day.h>
14#include <__chrono/year.h>
15#include <__config>
16
17#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
18# pragma GCC system_header
19#endif
20
21#if _LIBCPP_STD_VER >= 20
22
23_LIBCPP_BEGIN_NAMESPACE_STD
24
25inline namespace literals {
26inline namespace chrono_literals {
27_LIBCPP_HIDE_FROM_ABI constexpr chrono::day operator""d(unsigned long long __d) noexcept {
28 return chrono::day(static_cast<unsigned>(__d));
29}
30
31_LIBCPP_HIDE_FROM_ABI constexpr chrono::year operator""y(unsigned long long __y) noexcept {
32 return chrono::year(static_cast<int>(__y));
33}
34} // namespace chrono_literals
35} // namespace literals
36
37namespace chrono { // hoist the literals into namespace std::chrono
38using namespace literals::chrono_literals;
39} // namespace chrono
40
41_LIBCPP_END_NAMESPACE_STD
42
43#endif // _LIBCPP_STD_VER >= 20
44
45#endif // _LIBCPP___CHRONO_LITERALS_H
46