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

   1 // { dg-do compile { target c++11 } }
   2
   3 // Copyright (C) 2010-2020 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 // 20.7.1.3 unique_ptr for array objects [unique.ptr.runtime]
  21
  22 #include <memory>
  23
  24 struct A
  25 {
  26   void operator()(void*) const { }
  27 };
  28
  29 struct B
  30 {
  31   typedef char* pointer;
  32   void operator()(pointer) const { }
  33 };
  34
  35 int main()
  36 {
  37   typedef std::unique_ptr<int[]>     up;
  38   typedef std::unique_ptr<int[], A>  upA;
  39   typedef std::unique_ptr<int[], B>  upB;
  40   typedef std::unique_ptr<int[], A&> upAr;
  41   typedef std::unique_ptr<int[], B&> upBr;
  42
  43   static_assert( std::is_same< up::pointer, int*>::value, "" );
  44   static_assert( std::is_same< upA::pointer, int*>::value, "" );
  45   static_assert( std::is_same< upB::pointer, char*>::value, "" );
  46   static_assert( std::is_same< upAr::pointer, int*>::value, "" );
  47   static_assert( std::is_same< upBr::pointer, char*>::value, "" );
  48 }