libstdc++-v3/testsuite/ext/type_traits/remove_unsigned.cc

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2006-2015 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 <ext/type_traits.h>
  21 #include <tr1/type_traits>
  22 #include <testsuite_hooks.h>
  23
  24 template<typename T>
  25   void
  26   check_remove_unsigned()
  27   {
  28     bool test __attribute__((unused)) = true;
  29     typedef typename __gnu_cxx::__remove_unsigned<T>::__type signed_type;
  30     VERIFY( std::tr1::is_signed<signed_type>::value );
  31   }
  32
  33 int main()
  34 {
  35   check_remove_unsigned<char>();
  36   check_remove_unsigned<unsigned char>();
  37   check_remove_unsigned<signed char>();
  38   check_remove_unsigned<int>();
  39   check_remove_unsigned<unsigned int>();
  40   check_remove_unsigned<signed int>();
  41   check_remove_unsigned<long>();
  42   check_remove_unsigned<unsigned long>();
  43   check_remove_unsigned<signed long>();
  44   check_remove_unsigned<long long>();
  45   check_remove_unsigned<unsigned long long>();
  46   check_remove_unsigned<signed long long>();
  47   return 0;
  48 }