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54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
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// <chrono>
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// class year;
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// constexpr bool is_is_leap() const noexcept;
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// y_ % 4 == 0 && (y_ % 100 != 0 || y_ % 400 == 0)
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//
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#include <chrono>
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#include <type_traits>
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#include <cassert>
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#include "test_macros.h"
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int main()
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{
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using year = std::chrono::year;
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ASSERT_NOEXCEPT( year(1).is_leap());
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ASSERT_SAME_TYPE(bool, decltype(year(1).is_leap()));
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static_assert(!year{1}.is_leap(), "");
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static_assert(!year{2}.is_leap(), "");
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static_assert(!year{3}.is_leap(), "");
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static_assert( year{4}.is_leap(), "");
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assert( year{-2000}.is_leap());
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assert( year{ -400}.is_leap());
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assert(!year{ -300}.is_leap());
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assert(!year{ -200}.is_leap());
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assert(!year{ 200}.is_leap());
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assert(!year{ 300}.is_leap());
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assert( year{ 400}.is_leap());
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assert(!year{ 1997}.is_leap());
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assert(!year{ 1998}.is_leap());
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assert(!year{ 1999}.is_leap());
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assert( year{ 2000}.is_leap());
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assert(!year{ 2001}.is_leap());
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assert(!year{ 2002}.is_leap());
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assert(!year{ 2003}.is_leap());
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assert( year{ 2004}.is_leap());
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assert(!year{ 2100}.is_leap());
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}
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