libstdc++-v3/testsuite/20_util/tuple/cv_tuple_element.cc

   1 // { dg-do compile }
   2 // { dg-options "-std=gnu++0x" }
   3
   4 // 2011-05-19  Paolo Carlini  <paolo.carlini@oracle.com>
   5 //
   6 // Copyright (C) 2011-2013 Free Software Foundation, Inc.
   7 //
   8 // This file is part of the GNU ISO C++ Library.  This library is free
   9 // software; you can redistribute it and/or modify it under the
  10 // terms of the GNU General Public License as published by the
  11 // Free Software Foundation; either version 3, or (at your option)
  12 // any later version.
  13
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18
  19 // You should have received a copy of the GNU General Public License along
  20 // with this library; see the file COPYING3.  If not see
  21 // <http://www.gnu.org/licenses/>.
  22
  23 // Tuple
  24
  25 #include <tuple>
  26
  27 using namespace std;
  28
  29 static_assert(is_same<tuple_element<0, const tuple<double, void, int>>::type,
  30               const double>::value, "Error");
  31 static_assert(is_same<tuple_element<1, volatile tuple<short, void>>::type,
  32               volatile void>::value, "Error");
  33 static_assert(is_same<tuple_element<2, const volatile tuple<float,
  34               char, int>>::type, const volatile int>::value, "Error");