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

   1 // 2004-09-23 Chris Jefferson <chris@bubblescope.net>
   2
   3 // Copyright (C) 2004, 2005, 2006, 2007 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 struct foo
  29 { };
  30
  31 int
  32 main()
  33 {
  34   // As foo isn't constructible from anything else, this
  35   // lets us check if type is returning foo when it should
  36   foo q1;
  37   tuple_element<0,tuple<foo,void,int> >::type q2(q1);
  38   tuple_element<2,tuple<void,int,foo> >::type q3(q1);
  39 }
  40