libstdc++-v3/testsuite/23_containers/vector/bool/swap.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // Copyright (C) 2012-2025 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 #include <vector>
  21 #include <testsuite_hooks.h>
  22
  23 template<class Cont>
  24   void
  25   my_reverse(Cont& c)
  26   {
  27     for (std::size_t i = 0, j = c.size(); i < j; ++i)
  28       {
  29         --j;
  30         using std::swap;
  31         swap(c[i], c[j]);
  32       }
  33   }
  34
  35 template<class Cont>
  36   void
  37   my_compare(const Cont& c1, const Cont& c2)
  38   {
  39     VERIFY( c1.size() == c2.size() );
  40
  41     for (std::size_t i = 0; i < c1.size(); ++i)
  42       VERIFY( c1[i] == c2[c1.size() - i - 1] );
  43   }
  44
  45 void test01()
  46 {
  47   const std::vector<bool> vb_ref{0, 1, 1, 0, 1};
  48   std::vector<bool>       vb(vb_ref);
  49   my_reverse(vb);
  50   my_compare(vb_ref, vb);
  51 }
  52
  53 int main()
  54 {
  55   test01();
  56   return 0;
  57 }