libstdc++-v3/testsuite/30_threads/thread/id/operators.cc

   1 // { dg-do compile { target c++11 } }
   2
   3 // Copyright (C) 2009-2024 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 #include <thread>
  21
  22 template<typename Expected, typename T>
  23   struct check_type
  24   : std::false_type
  25   { };
  26
  27 template<typename Expected>
  28   struct check_type<Expected, Expected>
  29   : std::true_type
  30   { };
  31
  32 void test01()
  33 {
  34   // thread::id operators
  35   std::thread::id id1;
  36   std::thread::id id2;
  37
  38   static_assert( check_type<bool, decltype(id1 == id2)>{} );
  39   static_assert( check_type<bool, decltype(id1 != id2)>{} );
  40   static_assert( check_type<bool, decltype(id1 < id2)>{} );
  41   static_assert( check_type<bool, decltype(id1 > id2)>{} );
  42   static_assert( check_type<bool, decltype(id1 >= id2)>{} );
  43   static_assert( check_type<bool, decltype(id1 <= id2)>{} );
  44 }