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
10// <chrono>
11// class year;
12
13// constexpr bool is_leap() const noexcept;
14// y_ % 4 == 0 && (y_ % 100 != 0 || y_ % 400 == 0)
15//
16
17#include <chrono>
18#include <type_traits>
19#include <cassert>
20
21#include "test_macros.h"
22
23int main(int, char**)
24{
25 using year = std::chrono::year;
26
27 ASSERT_NOEXCEPT( year(1).is_leap());
28 ASSERT_SAME_TYPE(bool, decltype(year(1).is_leap()));
29
30 static_assert(!year{1}.is_leap(), "");
31 static_assert(!year{2}.is_leap(), "");
32 static_assert(!year{3}.is_leap(), "");
33 static_assert( year{4}.is_leap(), "");
34
35 assert( year{-2000}.is_leap());
36 assert( year{ -400}.is_leap());
37 assert(!year{ -300}.is_leap());
38 assert(!year{ -200}.is_leap());
39
40 assert(!year{ 200}.is_leap());
41 assert(!year{ 300}.is_leap());
42 assert( year{ 400}.is_leap());
43 assert(!year{ 1997}.is_leap());
44 assert(!year{ 1998}.is_leap());
45 assert(!year{ 1999}.is_leap());
46 assert( year{ 2000}.is_leap());
47 assert(!year{ 2001}.is_leap());
48 assert(!year{ 2002}.is_leap());
49 assert(!year{ 2003}.is_leap());
50 assert( year{ 2004}.is_leap());
51 assert(!year{ 2100}.is_leap());
52
53 return 0;
54}
55

source code of libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/is_leap.pass.cpp