libcxx/test/std/time/time.cal/time.cal.mwdlast/time.cal.mwdlast.members/ctor.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 month_weekday_last;
  12
  13 //  constexpr month_weekday_last(const chrono::month& m,
  14 //                               const chrono::weekday_last& wdl) noexcept;
  15 //
  16 //  Effects:  Constructs an object of type month_weekday_last by
  17 //            initializing m_ with m, and wdl_ with wdl.
  18 //
  19 //     constexpr chrono::month        month() const noexcept;
  20 //     constexpr chrono::weekday_last weekday_last()  const noexcept;
  21 //     constexpr bool                 ok()    const noexcept;
  22
  23
  24 #include <chrono>
  25 #include <type_traits>
  26 #include <cassert>
  27
  28 #include "test_macros.h"
  29
  30 int main(int, char**)
  31 {
  32     using month              = std::chrono::month;
  33     using weekday            = std::chrono::weekday;
  34     using weekday_last       = std::chrono::weekday_last;
  35     using month_weekday_last = std::chrono::month_weekday_last;
  36
  37     constexpr month January = std::chrono::January;
  38     constexpr weekday Tuesday = std::chrono::Tuesday;
  39
  40     ASSERT_NOEXCEPT(month_weekday_last{January, weekday_last{Tuesday}});
  41
  42     //  bad month
  43     constexpr month_weekday_last mwdl1{month{}, weekday_last{Tuesday}};
  44     static_assert( mwdl1.month() == month{},                      "");
  45     static_assert( mwdl1.weekday_last() == weekday_last{Tuesday}, "");
  46     static_assert(!mwdl1.ok(),                                    "");
  47
  48     //  bad weekday_last
  49     constexpr month_weekday_last mwdl2{January, weekday_last{weekday{16}}};
  50     static_assert( mwdl2.month() == January,                          "");
  51     static_assert( mwdl2.weekday_last() == weekday_last{weekday{16}}, "");
  52     static_assert(!mwdl2.ok(),                                        "");
  53
  54     //  Good month and weekday_last
  55     constexpr month_weekday_last mwdl3{January, weekday_last{weekday{4}}};
  56     static_assert( mwdl3.month() == January,                         "");
  57     static_assert( mwdl3.weekday_last() == weekday_last{weekday{4}}, "");
  58     static_assert( mwdl3.ok(),                                       "");
  59
  60     return 0;
  61 }