libstdc++-v3/testsuite/tr1/6_containers/tuple/creation_functions/tie.cc

   1 // 2004-09-23 Chris Jefferson <chris@bubblescope.net>
   2
   3 // Copyright (C) 2004 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 2, 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 COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // Tuple
  22
  23 #include <tr1/tuple>
  24 #include <testsuite_hooks.h>
  25
  26 using namespace std::tr1;
  27
  28 int
  29 main()
  30 {
  31   int x1 = 0;
  32   int x2 = 0;
  33   int y1 = 0;
  34   int y2 = 0;
  35   tuple<int,int> ta(1,1);
  36   tuple<const int&,const int&> tc(x1,x2);
  37   tie(y1,y2)=ta;
  38   VERIFY(y1 == 1 && y2 == 1);
  39   tie(y1,y2)=tc;
  40   VERIFY(y1 == 0 && y2 == 0);
  41 }
  42