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// { dg-options "-std=gnu++0x" }
// 2010-04-30 Paolo Carlini <paolo.carlini@oracle.com>
//
// Copyright (C) 2010-2014 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/>.
// Tuple
#include <tuple>
#include <type_traits>
#include <testsuite_hooks.h>
void
test01()
{
bool test __attribute__((unused)) = true;
std::forward_as_tuple();
VERIFY( std::get<0>(std::forward_as_tuple(-1)) == -1 );
VERIFY( (std::is_same<decltype(std::forward_as_tuple(-1)),
std::tuple<int&&>>::value) );
const int i1 = 1;
const int i2 = 2;
const double d1 = 4.0;
auto t1 = std::forward_as_tuple(i1, i2, d1);
VERIFY( (std::is_same<decltype(t1), std::tuple<const int&,
const int&, const double&>>::value) );
VERIFY( std::get<0>(t1) == i1 );
VERIFY( std::get<1>(t1) == i2 );
VERIFY( std::get<2>(t1) == d1 );
typedef const int a_type1[3];
a_type1 a1 = { -1, 1, 2 };
auto t2 = std::forward_as_tuple(a1);
VERIFY( (std::is_same<decltype(t2), std::tuple<a_type1&>>::value) );
VERIFY( std::get<0>(t2)[0] == a1[0] );
VERIFY( std::get<0>(t2)[1] == a1[1] );
VERIFY( std::get<0>(t2)[2] == a1[2] );
typedef int a_type2[2];
a_type2 a2 = { 2, -2 };
volatile int i4 = 1;
auto t3 = std::forward_as_tuple(a2, i4);
VERIFY( (std::is_same<decltype(t3), std::tuple<a_type2&,
volatile int&>>::value) );
VERIFY( std::get<0>(t3)[0] == a2[0] );
VERIFY( std::get<0>(t3)[1] == a2[1] );
VERIFY( std::get<1>(t3) == i4 );
}
int main()
{
test01();
return 0;
}
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