blob: eb45461b817039c12148a55ca5a41b3e7b08c705 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
// <chrono>
// template <class Duration>
// class hh_mm_ss
//
// constexpr precision subseconds() const noexcept;
//
// See the table in hours.pass.cpp for correspondence between the magic values used below
#include <chrono>
#include <cassert>
#include "test_macros.h"
template <typename Duration>
constexpr long check_subseconds(Duration d)
{
using HMS = std::chrono::hh_mm_ss<Duration>;
ASSERT_SAME_TYPE(typename HMS::precision, decltype(std::declval<HMS>().subseconds()));
ASSERT_NOEXCEPT( std::declval<HMS>().subseconds());
return HMS(d).subseconds().count();
}
int main(int, char**)
{
using microfortnights = std::chrono::duration<int, std::ratio<756, 625>>;
static_assert( check_subseconds(std::chrono::seconds( 1)) == 0, "");
static_assert( check_subseconds(std::chrono::seconds(-1)) == 0, "");
assert( check_subseconds(std::chrono::seconds( 5000)) == 0);
assert( check_subseconds(std::chrono::seconds(-5000)) == 0);
assert( check_subseconds(std::chrono::minutes( 5000)) == 0);
assert( check_subseconds(std::chrono::minutes(-5000)) == 0);
assert( check_subseconds(std::chrono::hours( 11)) == 0);
assert( check_subseconds(std::chrono::hours(-11)) == 0);
assert( check_subseconds(std::chrono::milliseconds( 123456789LL)) == 789);
assert( check_subseconds(std::chrono::milliseconds(-123456789LL)) == 789);
assert( check_subseconds(std::chrono::microseconds( 123456789LL)) == 456789LL);
assert( check_subseconds(std::chrono::microseconds(-123456789LL)) == 456789LL);
assert( check_subseconds(std::chrono::nanoseconds( 123456789LL)) == 123456789LL);
assert( check_subseconds(std::chrono::nanoseconds(-123456789LL)) == 123456789LL);
assert( check_subseconds(microfortnights( 1000)) == 6000);
assert( check_subseconds(microfortnights( -1000)) == 6000);
assert( check_subseconds(microfortnights( 10000)) == 0);
assert( check_subseconds(microfortnights(-10000)) == 0);
return 0;
}
|
