libstdc++-v3/testsuite/std/time/make24/1.cc

   1 // { dg-options "-std=gnu++2a" }
   2 // { dg-do compile { target c++2a } }
   3
   4 // Copyright (C) 2020-2022 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 // Function is_pm [time.12]
  22
  23 #include <chrono>
  24
  25 constexpr void
  26 constexpr_make24()
  27 {
  28   using namespace std::chrono;
  29
  30   static_assert(make24(0h, false) == 0h);
  31   static_assert(make24(1h, false) == 1h);
  32   static_assert(make24(5h, false) == 5h);
  33   static_assert(make24(11h, false) == 11h);
  34   static_assert(make24(12h, false) == 0h);
  35
  36   static_assert(make24(0h, true) == 12h);
  37   static_assert(make24(1h, true) == 13h);
  38   static_assert(make24(5h, true) == 17h);
  39   static_assert(make24(11h, true) == 23h);
  40   static_assert(make24(12h, true) == 12h);
  41 }