libstdc++-v3/testsuite/20_util/integral_constant/true_false_value.cc

   1 // { dg-options "-std=gnu++11" }
   2 //
   3 // Copyright (C) 2013-2016 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 <type_traits>
  21 #include <testsuite_hooks.h>
  22
  23 void test01()
  24 {
  25   bool test __attribute__((unused)) = true;
  26   using std::true_type;
  27   using std::false_type;
  28
  29   static_assert( true_type::value == true, "" );
  30   static_assert( false_type::value == false, "" );
  31   static_assert( true_type::type::value == true, "" );
  32   static_assert( false_type::type::value == false, "" );
  33
  34   VERIFY( true_type::value == true );
  35   VERIFY( false_type::value == false );
  36   VERIFY( true_type::type::value == true );
  37   VERIFY( false_type::type::value == false );
  38 }
  39
  40 int main()
  41 {
  42   test01();
  43   return 0;
  44 }