// { dg-options "-std=gnu++0x" }
// Copyright (C) 2011 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
// .
#include
#include
#include
template
typename std::decay::type copy(T&& x)
{ return std::forward(x); }
template
void
check_tuple_cat(std::tuple t1, std::tuple t2)
{
bool test __attribute__((unused)) = true;
typedef std::tuple concatenated;
auto cat1 = std::tuple_cat( t1, t2 );
auto cat2 = std::tuple_cat(copy(t1), t2 );
auto cat3 = std::tuple_cat( t1, copy(t2));
auto cat4 = std::tuple_cat(copy(t1), copy(t2));
static_assert( std::is_same::value, "" );
static_assert( std::is_same::value, "" );
static_assert( std::is_same::value, "" );
static_assert( std::is_same::value, "" );
VERIFY( cat1 == cat2 );
VERIFY( cat1 == cat3 );
VERIFY( cat1 == cat4 );
}
// libstdc++/48476
void test01()
{
int i = 0;
std::tuple<> t0;
std::tuple t1(i);
std::tuple t2(i, 0);
std::tuple t3(i, 0, 0);
check_tuple_cat(t0, t0);
check_tuple_cat(t0, t1);
check_tuple_cat(t0, t2);
check_tuple_cat(t0, t3);
check_tuple_cat(t1, t0);
check_tuple_cat(t1, t1);
check_tuple_cat(t1, t2);
check_tuple_cat(t1, t3);
check_tuple_cat(t2, t0);
check_tuple_cat(t2, t1);
check_tuple_cat(t2, t2);
check_tuple_cat(t2, t3);
check_tuple_cat(t3, t0);
check_tuple_cat(t3, t1);
check_tuple_cat(t3, t2);
check_tuple_cat(t3, t3);
}
int main()
{
test01();
return 0;
}