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libcxx/test/std/utilities/time/time.cal/time.cal.year/time.cal.year.members/ok.pass.cpp

54 lines
1.5 KiB
C++

//===----------------------------------------------------------------------===//
//
// 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.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
// <chrono>
// class year;
// constexpr bool ok() const noexcept;
// Returns: min() <= y_ && y_ <= max().
//
// static constexpr year min() noexcept;
// Returns year{ 32767};
// static constexpr year max() noexcept;
// Returns year{-32767};
#include <chrono>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
int main()
{
using year = std::chrono::year;
ASSERT_NOEXCEPT( std::declval<const year>().ok());
ASSERT_SAME_TYPE(bool, decltype(std::declval<const year>().ok()));
ASSERT_NOEXCEPT( year::max());
ASSERT_SAME_TYPE(year, decltype(year::max()));
ASSERT_NOEXCEPT( year::min());
ASSERT_SAME_TYPE(year, decltype(year::min()));
static_assert(static_cast<int>(year::min()) == -32767, "");
static_assert(static_cast<int>(year::max()) == 32767, "");
assert(year{-20001}.ok());
assert(year{ -2000}.ok());
assert(year{ -1}.ok());
assert(year{ 0}.ok());
assert(year{ 1}.ok());
assert(year{ 2000}.ok());
assert(year{ 20001}.ok());
static_assert(!year{-32768}.ok(), "");
}