libstdc++-v3/testsuite/20_util/shared_ptr/comparison/dr1401.cc

   1 // { dg-do compile { target c++11 } }
   2
   3 // Copyright (C) 2011-2021 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 // 20.7.2.2 Class template shared_ptr [util.smartptr.shared]
  21
  22 #include <memory>
  23
  24 // DR 1401
  25 void test01()
  26 {
  27   std::shared_ptr<int> ptr1, ptr2;
  28   if (ptr1 == ptr2)
  29     { }
  30   if (ptr1 == nullptr)
  31     { }
  32   if (nullptr == ptr1)
  33     { }
  34   if (ptr1 != ptr2)
  35     { }
  36   if (ptr1 != nullptr)
  37     { }
  38   if (nullptr != ptr1)
  39     { }
  40   if (ptr1 < ptr2)
  41     { }
  42   if (ptr1 < nullptr)
  43     { }
  44   if (nullptr < ptr1)
  45     { }
  46   if (ptr1 <= ptr2)
  47     { }
  48   if (ptr1 <= nullptr)
  49     { }
  50   if (nullptr <= ptr1)
  51     { }
  52   if (ptr1 > ptr2)
  53     { }
  54   if (ptr1 > nullptr)
  55     { }
  56   if (nullptr > ptr1)
  57     { }
  58   if (ptr1 >= ptr2)
  59     { }
  60   if (ptr1 >= nullptr)
  61     { }
  62   if (nullptr >= ptr1)
  63     { }
  64 }