libstdc++-v3/testsuite/20_util/remove_reference/value.cc

   1 // { dg-do compile { target c++11 } }
   2
   3 // 2007-06-02  Paolo Carlini  <pcarlini@suse.de>
   4 //
   5 // Copyright (C) 2007-2022 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12 //
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 #include <type_traits>
  23 #include <testsuite_tr1.h>
  24
  25 void test01()
  26 {
  27   using std::remove_reference;
  28   using std::is_same;
  29   using namespace __gnu_test;
  30
  31   static_assert(is_same<remove_reference<int&>::type, int>::value, "");
  32   static_assert(is_same<remove_reference<int>::type, int>::value, "");
  33   static_assert(is_same<remove_reference<const int&>::type,
  34                 const int>::value, "");
  35   static_assert(is_same<remove_reference<int*&>::type, int*>::value, "");
  36   static_assert(is_same<remove_reference<ClassType&>::type,
  37                 ClassType>::value, "");
  38   static_assert(is_same<remove_reference<ClassType>::type,
  39                 ClassType>::value, "");
  40   static_assert(is_same<remove_reference<int(&)(int)>::type,
  41                 int(int)>::value, "");
  42   static_assert(is_same<remove_reference<int&&>::type, int>::value, "");
  43   static_assert(is_same<remove_reference<int>::type, int>::value, "");
  44   static_assert(is_same<remove_reference<const int&&>::type,
  45                 const int>::value, "");
  46   static_assert(is_same<remove_reference<int*&&>::type, int*>::value, "");
  47   static_assert(is_same<remove_reference<ClassType&&>::type,
  48                 ClassType>::value, "");
  49   static_assert(is_same<remove_reference<ClassType>::type,
  50                 ClassType>::value, "");
  51   static_assert(is_same<remove_reference<int(&&)(int)>::type,
  52                 int(int)>::value, "");
  53 }