libstdc++-v3/testsuite/25_algorithms/swap_ranges/1.cc

   1 // Copyright (C) 2005-2018 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // 25.2.2 swap_ranges
  19
  20 #include <algorithm>
  21 #include <testsuite_hooks.h>
  22 #include <testsuite_iterators.h>
  23
  24 using __gnu_test::test_container;
  25 using __gnu_test::forward_iterator_wrapper;
  26
  27 typedef test_container<int, forward_iterator_wrapper> Container;
  28
  29
  30 void
  31 test1()
  32 {
  33   int array1[]={1, 2};
  34   int array2[]={3, 4};
  35   Container con1(array1, array1 + 2);
  36   Container con2(array2, array2 + 2);
  37   VERIFY(std::swap_ranges(con1.begin(), con1.end(), con2.begin()).ptr ==
  38          array2 + 2);
  39   VERIFY(array1[0] == 3 && array1[1] == 4 && array2[0] == 1 && array2[1] == 2);
  40 }
  41
  42 void
  43 test2()
  44 {
  45   int array1[] = {1};
  46   int array2[] = {1};
  47   Container con1(array1, array1);
  48   Container con2(array2, array2);
  49   VERIFY(swap_ranges(con1.begin(), con1.end(), con2.begin()).ptr == array2);
  50 }
  51
  52 int
  53 main()
  54 {
  55   test1();
  56   test2();
  57 }