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//===----------------------------------------------------------------------===//
//
// 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_month_day;
// constexpr bool ok() const noexcept;
// Returns: m_.ok() && y_.ok().
#include <chrono>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
int main()
{
using year = std::chrono::year;
using month = std::chrono::month;
using day = std::chrono::day;
using year_month_day = std::chrono::year_month_day;
constexpr month January = std::chrono::January;
ASSERT_NOEXCEPT( std::declval<const year_month_day>().ok());
ASSERT_SAME_TYPE(bool, decltype(std::declval<const year_month_day>().ok()));
static_assert(!year_month_day{year{-32768}, month{}, day{}}.ok(), ""); // All three bad
static_assert(!year_month_day{year{-32768}, January, day{1}}.ok(), ""); // Bad year
static_assert(!year_month_day{year{2019}, month{}, day{1}}.ok(), ""); // Bad month
static_assert(!year_month_day{year{2019}, January, day{} }.ok(), ""); // Bad day
static_assert(!year_month_day{year{-32768}, month{}, day{1}}.ok(), ""); // Bad year & month
static_assert(!year_month_day{year{2019}, month{}, day{} }.ok(), ""); // Bad month & day
static_assert(!year_month_day{year{-32768}, January, day{} }.ok(), ""); // Bad year & day
static_assert( year_month_day{year{2019}, January, day{1}}.ok(), ""); // All OK
// Some months have a 31st
static_assert( year_month_day{year{2020}, month{ 1}, day{31}}.ok(), "");
static_assert(!year_month_day{year{2020}, month{ 2}, day{31}}.ok(), "");
static_assert( year_month_day{year{2020}, month{ 3}, day{31}}.ok(), "");
static_assert(!year_month_day{year{2020}, month{ 4}, day{31}}.ok(), "");
static_assert( year_month_day{year{2020}, month{ 5}, day{31}}.ok(), "");
static_assert(!year_month_day{year{2020}, month{ 6}, day{31}}.ok(), "");
static_assert( year_month_day{year{2020}, month{ 7}, day{31}}.ok(), "");
static_assert( year_month_day{year{2020}, month{ 8}, day{31}}.ok(), "");
static_assert(!year_month_day{year{2020}, month{ 9}, day{31}}.ok(), "");
static_assert( year_month_day{year{2020}, month{10}, day{31}}.ok(), "");
static_assert(!year_month_day{year{2020}, month{11}, day{31}}.ok(), "");
static_assert( year_month_day{year{2020}, month{12}, day{31}}.ok(), "");
// Everyone except FEB has a 30th
static_assert( year_month_day{year{2020}, month{ 1}, day{30}}.ok(), "");
static_assert(!year_month_day{year{2020}, month{ 2}, day{30}}.ok(), "");
static_assert( year_month_day{year{2020}, month{ 3}, day{30}}.ok(), "");
static_assert( year_month_day{year{2020}, month{ 4}, day{30}}.ok(), "");
static_assert( year_month_day{year{2020}, month{ 5}, day{30}}.ok(), "");
static_assert( year_month_day{year{2020}, month{ 6}, day{30}}.ok(), "");
static_assert( year_month_day{year{2020}, month{ 7}, day{30}}.ok(), "");
static_assert( year_month_day{year{2020}, month{ 8}, day{30}}.ok(), "");
static_assert( year_month_day{year{2020}, month{ 9}, day{30}}.ok(), "");
static_assert( year_month_day{year{2020}, month{10}, day{30}}.ok(), "");
static_assert( year_month_day{year{2020}, month{11}, day{30}}.ok(), "");
static_assert( year_month_day{year{2020}, month{12}, day{30}}.ok(), "");
static_assert(!year_month_day{year{2019}, std::chrono::February, day{29}}.ok(), ""); // Not a leap year
static_assert( year_month_day{year{2020}, std::chrono::February, day{29}}.ok(), ""); // Ok; 2020 is a leap year
for (unsigned i = 0; i <= 50; ++i)
{
year_month_day ym{year{2019}, January, day{i}};
assert( ym.ok() == day{i}.ok());
}
for (unsigned i = 0; i <= 50; ++i)
{
year_month_day ym{year{2019}, month{i}, day{12}};
assert( ym.ok() == month{i}.ok());
}
const int ymax = static_cast<int>(year::max());
for (int i = ymax - 100; i <= ymax + 100; ++i)
{
year_month_day ym{year{i}, January, day{12}};
assert( ym.ok() == year{i}.ok());
}
}
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