55 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8// UNSUPPORTED: c++03, c++11, c++14, c++179 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