libstdc++-v3/testsuite/tr1/4_metaprogramming/add_reference/value.cc

   1 // 2004-12-08  Paolo Carlini  <pcarlini@suse.de>
   2 //
   3 // Copyright (C) 2004-2023 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 // 4.7.2 Reference modifications
  21
  22 #include <tr1/type_traits>
  23 #include <testsuite_hooks.h>
  24 #include <testsuite_tr1.h>
  25
  26 void test01()
  27 {
  28   using std::tr1::add_reference;
  29   using std::tr1::is_same;
  30   using namespace __gnu_test;
  31
  32   VERIFY( (is_same<add_reference<int>::type, int&>::value) );
  33   VERIFY( (is_same<add_reference<int&>::type, int&>::value) );
  34   VERIFY( (is_same<add_reference<const int>::type, const int&>::value) );
  35   VERIFY( (is_same<add_reference<int*>::type, int*&>::value) );
  36   VERIFY( (is_same<add_reference<ClassType&>::type, ClassType&>::value) );
  37   VERIFY( (is_same<add_reference<ClassType>::type, ClassType&>::value) );
  38
  39   VERIFY( (is_same<add_reference<void>::type, void>::value) );
  40   VERIFY( (is_same<add_reference<const void>::type, const void>::value) );
  41 }
  42
  43 int main()
  44 {
  45   test01();
  46   return 0;
  47 }