libstdc++-v3/testsuite/20_util/unique_ptr/requirements/pointer_type.cc

   1 // { dg-do compile }
   2 // { dg-options "-std=gnu++11" }
   3
   4 // Copyright (C) 2010-2013 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 // 20.7.1.2 unique_ptr for single objects [unique.ptr.single]
  22
  23 #include <memory>
  24
  25 struct A
  26 {
  27   void operator()(void*) const { }
  28 };
  29
  30 struct B
  31 {
  32   typedef char* pointer;
  33   void operator()(pointer) const { }
  34 };
  35
  36 int main()
  37 {
  38   typedef std::unique_ptr<int>     up;
  39   typedef std::unique_ptr<int, A>  upA;
  40   typedef std::unique_ptr<int, B>  upB;
  41   typedef std::unique_ptr<int, A&> upAr;
  42   typedef std::unique_ptr<int, B&> upBr;
  43
  44   static_assert( std::is_same< up::pointer, int*>::value, "" );
  45   static_assert( std::is_same< upA::pointer, int*>::value, "" );
  46   static_assert( std::is_same< upB::pointer, char*>::value, "" );
  47   static_assert( std::is_same< upAr::pointer, int*>::value, "" );
  48   static_assert( std::is_same< upBr::pointer, char*>::value, "" );
  49 }