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
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <chrono>
// duration
// template <class Rep1, class Period1, class Rep2, class Period2>
// constexpr
// typename common_type<duration<Rep1, Period1>, duration<Rep2, Period2>>::type
// operator-(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);
#include <chrono>
#include <cassert>
#include "test_macros.h"
int main()
{
{
std::chrono::seconds s1(3);
std::chrono::seconds s2(5);
std::chrono::seconds r = s1 - s2;
assert(r.count() == -2);
}
{
std::chrono::seconds s1(3);
std::chrono::microseconds s2(5);
std::chrono::microseconds r = s1 - s2;
assert(r.count() == 2999995);
}
{
std::chrono::duration<int, std::ratio<2, 3> > s1(3);
std::chrono::duration<int, std::ratio<3, 5> > s2(5);
std::chrono::duration<int, std::ratio<1, 15> > r = s1 - s2;
assert(r.count() == -15);
}
{
std::chrono::duration<int, std::ratio<2, 3> > s1(3);
std::chrono::duration<double, std::ratio<3, 5> > s2(5);
std::chrono::duration<double, std::ratio<1, 15> > r = s1 - s2;
assert(r.count() == -15);
}
#if TEST_STD_VER >= 11
{
constexpr std::chrono::seconds s1(3);
constexpr std::chrono::seconds s2(5);
constexpr std::chrono::seconds r = s1 - s2;
static_assert(r.count() == -2, "");
}
{
constexpr std::chrono::seconds s1(3);
constexpr std::chrono::microseconds s2(5);
constexpr std::chrono::microseconds r = s1 - s2;
static_assert(r.count() == 2999995, "");
}
{
constexpr std::chrono::duration<int, std::ratio<2, 3> > s1(3);
constexpr std::chrono::duration<int, std::ratio<3, 5> > s2(5);
constexpr std::chrono::duration<int, std::ratio<1, 15> > r = s1 - s2;
static_assert(r.count() == -15, "");
}
{
constexpr std::chrono::duration<int, std::ratio<2, 3> > s1(3);
constexpr std::chrono::duration<double, std::ratio<3, 5> > s2(5);
constexpr std::chrono::duration<double, std::ratio<1, 15> > r = s1 - s2;
static_assert(r.count() == -15, "");
}
#endif
}
|
