libstdc++-v3/testsuite/20_util/unique_ptr/specialized_algorithms/comparisons.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // Copyright (C) 2008-2020 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 // 20.6.11 Template class unique_ptr [unique.ptr]
  21
  22 #include <memory>
  23 #include <testsuite_hooks.h>
  24
  25 struct A
  26 {
  27   virtual ~A() { }
  28 };
  29
  30 struct B : A
  31 {
  32 };
  33
  34 // 20.6.11.5 unqiue_ptr specialized algorithms [unique.ptr.special]
  35
  36 void
  37 test01()
  38 {
  39   std::unique_ptr<A> p1;
  40   std::unique_ptr<A> p2;
  41
  42   VERIFY( p1 == p2 );
  43   VERIFY( !(p1 != p2) );
  44   VERIFY( !(p1 < p2) && !(p1 > p2) );
  45 }
  46
  47 void
  48 test02()
  49 {
  50   std::unique_ptr<A> p1;
  51   std::unique_ptr<A> p2(new A);
  52
  53   VERIFY( p1 != p2 );
  54   VERIFY( !(p1 == p2) );
  55   VERIFY( (p1 < p2) || (p1 > p2) );
  56   VERIFY( ((p1 <= p2) && (p1 != p2)) || ((p1 >= p2) && (p1 != p2)) );
  57 }
  58
  59 int main()
  60 {
  61   test01();
  62   test02();
  63   return 0;
  64 }