libstdc++-v3/testsuite/20_util/pair/swap.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // Copyright (C) 2007-2021 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
  21 #include <utility>
  22 #include <testsuite_allocator.h>
  23 #include <testsuite_hooks.h>
  24
  25 void test01()
  26 {
  27   typedef __gnu_test::uneq_allocator<double> ua_type;
  28   ua_type one(1), two(2);
  29
  30   std::pair<ua_type, int> p1(one, 1), p2(two, 2);
  31
  32   p1.swap(p2);
  33   VERIFY( p1.first.get_personality() == 2 );
  34   VERIFY( p1.second == 2 );
  35   VERIFY( p2.first.get_personality() == 1 );
  36   VERIFY( p2.second == 1 );
  37
  38   swap(p1, p2);
  39   VERIFY( p2.first.get_personality() == 2 );
  40   VERIFY( p2.second == 2 );
  41   VERIFY( p1.first.get_personality() == 1 );
  42   VERIFY( p1.second == 1 );
  43 }
  44
  45 int main()
  46 {
  47   test01();
  48   return 0;
  49 }