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 chrono::seconds seconds() 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 <cstdint>
21 #include <ratio>
22 #include <utility>
23 
24 #include "test_macros.h"
25 
26 template <typename Duration>
27 constexpr int64_t check_seconds(Duration d)
28 {
29     using HMS = std::chrono::hh_mm_ss<Duration>;
30     ASSERT_SAME_TYPE(std::chrono::seconds, decltype(std::declval<HMS>().seconds()));
31     ASSERT_NOEXCEPT(                                std::declval<HMS>().seconds());
32     return HMS(d).seconds().count();
33 }
34 
35 int main(int, char**)
36 {
37     using microfortnights = std::chrono::duration<int, std::ratio<756, 625>>;
38 
39     static_assert( check_seconds(std::chrono::seconds( 1)) == 1, "");
40     static_assert( check_seconds(std::chrono::seconds(-1)) == 1, "");
41 
42     assert( check_seconds(std::chrono::seconds( 5000)) == 20);
43     assert( check_seconds(std::chrono::seconds(-5000)) == 20);
44     assert( check_seconds(std::chrono::minutes( 5000)) == 0);
45     assert( check_seconds(std::chrono::minutes(-5000)) == 0);
46     assert( check_seconds(std::chrono::hours( 11))     == 0);
47     assert( check_seconds(std::chrono::hours(-11))     == 0);
48 
49     assert( check_seconds(std::chrono::milliseconds( 123456789LL)) == 36);
50     assert( check_seconds(std::chrono::milliseconds(-123456789LL)) == 36);
51     assert( check_seconds(std::chrono::microseconds( 123456789LL)) == 3);
52     assert( check_seconds(std::chrono::microseconds(-123456789LL)) == 3);
53     assert( check_seconds(std::chrono::nanoseconds( 123456789LL))  == 0);
54     assert( check_seconds(std::chrono::nanoseconds(-123456789LL))  == 0);
55 
56     assert( check_seconds(microfortnights(  1000)) ==  9);
57     assert( check_seconds(microfortnights( -1000)) ==  9);
58     assert( check_seconds(microfortnights( 10000)) == 36);
59     assert( check_seconds(microfortnights(-10000)) == 36);
60 
61     return 0;
62 }
63