libstdc++-v3/testsuite/20_util/duration/requirements/noexcept.cc

   1 // Copyright (C) 2019-2020 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do compile { target c++11 } }
  19
  20 // P0972R0 <chrono> zero(), min(), and max() should be noexcept
  21
  22 #include <chrono>
  23
  24 using namespace std;
  25
  26 using vals = chrono::duration_values<short>;
  27 static_assert( noexcept(vals::zero()), "duration_values::zero()" );
  28 static_assert( noexcept(vals::min()), "duration_values::min()" );
  29 static_assert( noexcept(vals::max()), "duration_values::max()" );
  30
  31 using dur1 = chrono::system_clock::duration;
  32 static_assert( noexcept(dur1::zero()), "duration::zero()" );
  33 static_assert( noexcept(dur1::min()), "duration::min()" );
  34 static_assert( noexcept(dur1::max()), "duration::max()" );
  35
  36 using dur2 = chrono::duration<short, ratio<10>>;
  37 static_assert( noexcept(dur2::zero()), "duration::zero()" );
  38 static_assert( noexcept(dur2::min()), "duration::min()" );
  39 static_assert( noexcept(dur2::max()), "duration::max()" );