libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/day.pass.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-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 // UNSUPPORTED: c++03, c++11, c++14, c++17
   9
  10 // <chrono>
  11 // class year_month_day_last;
  12
  13 // constexpr chrono::day day() const noexcept;
  14 //  Returns: wd_
  15
  16 #include <chrono>
  17 #include <cassert>
  18 #include <type_traits>
  19 #include <utility>
  20
  21 #include "test_macros.h"
  22
  23 int main(int, char**)
  24 {
  25     using year                = std::chrono::year;
  26     using month               = std::chrono::month;
  27     using day                 = std::chrono::day;
  28     using month_day_last      = std::chrono::month_day_last;
  29     using year_month_day_last = std::chrono::year_month_day_last;
  30
  31     ASSERT_NOEXCEPT(               std::declval<const year_month_day_last>().day());
  32     ASSERT_SAME_TYPE(day, decltype(std::declval<const year_month_day_last>().day()));
  33
  34     // Some months have a 31st
  35     static_assert( year_month_day_last{year{2020}, month_day_last{month{ 1}}}.day() == day{31}, "");
  36     static_assert( year_month_day_last{year{2020}, month_day_last{month{ 2}}}.day() == day{29}, "");
  37     static_assert( year_month_day_last{year{2020}, month_day_last{month{ 3}}}.day() == day{31}, "");
  38     static_assert( year_month_day_last{year{2020}, month_day_last{month{ 4}}}.day() == day{30}, "");
  39     static_assert( year_month_day_last{year{2020}, month_day_last{month{ 5}}}.day() == day{31}, "");
  40     static_assert( year_month_day_last{year{2020}, month_day_last{month{ 6}}}.day() == day{30}, "");
  41     static_assert( year_month_day_last{year{2020}, month_day_last{month{ 7}}}.day() == day{31}, "");
  42     static_assert( year_month_day_last{year{2020}, month_day_last{month{ 8}}}.day() == day{31}, "");
  43     static_assert( year_month_day_last{year{2020}, month_day_last{month{ 9}}}.day() == day{30}, "");
  44     static_assert( year_month_day_last{year{2020}, month_day_last{month{10}}}.day() == day{31}, "");
  45     static_assert( year_month_day_last{year{2020}, month_day_last{month{11}}}.day() == day{30}, "");
  46     static_assert( year_month_day_last{year{2020}, month_day_last{month{12}}}.day() == day{31}, "");
  47
  48     assert((year_month_day_last{year{2019}, month_day_last{month{ 2}}}.day() == day{28}));
  49     assert((year_month_day_last{year{2020}, month_day_last{month{ 2}}}.day() == day{29}));
  50     assert((year_month_day_last{year{2021}, month_day_last{month{ 2}}}.day() == day{28}));
  51
  52     return 0;
  53 }