1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 // UNSUPPORTED: c++03, c++11, c++14, c++17
9 // <chrono>
10
11 // template <class Duration>
12 // class hh_mm_ss
13 //
14 // constexpr precision to_duration() const noexcept;
15 //
16 // See the table in hours.pass.cpp for correspondence between the magic values used below
17
18 #include <chrono>
19 #include <cassert>
20 #include <ratio>
21 #include <utility>
22
23 #include "test_macros.h"
24
25 template <typename Duration>
check_duration(Duration d)26 constexpr long long check_duration(Duration d)
27 {
28 using HMS = std::chrono::hh_mm_ss<Duration>;
29 ASSERT_SAME_TYPE(typename HMS::precision, decltype(std::declval<HMS>().to_duration()));
30 ASSERT_NOEXCEPT( std::declval<HMS>().to_duration());
31
32 return HMS(d).to_duration().count();
33 }
34
main(int,char **)35 int main(int, char**)
36 {
37 using microfortnights = std::chrono::duration<int, std::ratio<756, 625>>;
38
39 static_assert( check_duration(std::chrono::minutes( 1)) == 60, "");
40 static_assert( check_duration(std::chrono::minutes(-1)) == -60, "");
41
42 assert( check_duration(std::chrono::seconds( 5000)) == 5000LL);
43 assert( check_duration(std::chrono::seconds(-5000)) == -5000LL);
44 assert( check_duration(std::chrono::minutes( 5000)) == 300000LL);
45 assert( check_duration(std::chrono::minutes(-5000)) == -300000LL);
46 assert( check_duration(std::chrono::hours( 11)) == 39600LL);
47 assert( check_duration(std::chrono::hours(-11)) == -39600LL);
48
49 assert( check_duration(std::chrono::milliseconds( 123456789LL)) == 123456789LL);
50 assert( check_duration(std::chrono::milliseconds(-123456789LL)) == -123456789LL);
51 assert( check_duration(std::chrono::microseconds( 123456789LL)) == 123456789LL);
52 assert( check_duration(std::chrono::microseconds(-123456789LL)) == -123456789LL);
53 assert( check_duration(std::chrono::nanoseconds( 123456789LL)) == 123456789LL);
54 assert( check_duration(std::chrono::nanoseconds(-123456789LL)) == -123456789LL);
55
56 assert( check_duration(microfortnights( 1000)) == 12096000);
57 assert( check_duration(microfortnights( -1000)) == -12096000);
58 assert( check_duration(microfortnights( 10000)) == 120960000);
59 assert( check_duration(microfortnights(-10000)) == -120960000);
60
61 return 0;
62 }
63