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

   1 // { dg-options "-std=gnu++11" }
   2 // { dg-do compile }
   3
   4 // Copyright (C) 2013-2014 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11 //
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 #include <type_traits>
  22 #include <testsuite_tr1.h>
  23
  24 void test01()
  25 {
  26   using std::add_const;
  27   using std::is_same;
  28   using namespace __gnu_test;
  29
  30   static_assert(is_same<add_const<int>::type, const int>::value, "");
  31   static_assert(is_same<add_const<volatile int>::type,
  32                 const volatile int>::value, "");
  33   static_assert(is_same<add_const<int*>::type, int* const>::value, "");
  34   static_assert(is_same<add_const<int&>::type, int&>::value, "");
  35   static_assert(is_same<add_const<int (int)>::type, int (int)>::value, "");
  36   static_assert(is_same<add_const<const int>::type, const int>::value, "");
  37   static_assert(is_same<add_const<ClassType>::type,
  38                 const ClassType>::value, "");
  39   static_assert(is_same<add_const<volatile ClassType>::type,
  40                 const volatile ClassType>::value, "");
  41   static_assert(is_same<add_const<ClassType*>::type,
  42                 ClassType* const>::value, "");
  43   static_assert(is_same<add_const<ClassType&>::type, ClassType&>::value, "");
  44   static_assert(is_same<add_const<ClassType (ClassType)>::type,
  45                 ClassType (ClassType)>::value, "");
  46   static_assert(is_same<add_const<const ClassType>::type,
  47                 const ClassType>::value, "");
  48 }