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// 2004-09-23 Chris Jefferson <chris@bubblescope.net>
// Copyright (C) 2004-2018 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// { dg-options "-std=c++98" }
// tr1 additions to pair
#include <tr1/utility>
#include <testsuite_hooks.h>
using namespace std::tr1;
using std::pair;
struct blank_class
{ };
int
main()
{
typedef pair<int,int> test_pair_type;
VERIFY(tuple_size<test_pair_type>::value == 2);
// Test if tuple_element::type returns the correct type
blank_class blank;
tuple_element<0, pair<blank_class, int> >::type
blank2 __attribute__((unused)) = blank;
tuple_element<1, pair<int ,blank_class> >::type
blank3 __attribute__((unused)) = blank;
pair<int,int> test_pair(1, 2);
VERIFY(get<0>(test_pair) == 1);
VERIFY(get<1>(test_pair) == 2);
get<0>(test_pair) = 3;
get<1>(test_pair) = 4;
VERIFY(get<0>(test_pair) == 3);
VERIFY(get<1>(test_pair) == 4);
const pair<int,int> test_pair2(1,2);
VERIFY(get<0>(test_pair2) == 1);
VERIFY(get<1>(test_pair2) == 2);
}
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