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[/] [openrisc/] [tags/] [gnu-dev/] [fsf-gcc-snapshot-1-mar-12/] [or1k-gcc/] [libstdc++-v3/] [testsuite/] [20_util/] [tuple/] [creation_functions/] [48476.cc] - Rev 783
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// { 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 // <http://www.gnu.org/licenses/>. #include <tuple> #include <type_traits> #include <testsuite_hooks.h> template<typename T> typename std::decay<T>::type copy(T&& x) { return std::forward<T>(x); } template<typename... Args1, typename... Args2> void check_tuple_cat(std::tuple<Args1...> t1, std::tuple<Args2...> t2) { bool test __attribute__((unused)) = true; typedef std::tuple<Args1..., Args2...> 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<decltype(cat1), concatenated>::value, "" ); static_assert( std::is_same<decltype(cat2), concatenated>::value, "" ); static_assert( std::is_same<decltype(cat3), concatenated>::value, "" ); static_assert( std::is_same<decltype(cat4), concatenated>::value, "" ); VERIFY( cat1 == cat2 ); VERIFY( cat1 == cat3 ); VERIFY( cat1 == cat4 ); } // libstdc++/48476 void test01() { int i = 0; std::tuple<> t0; std::tuple<int&> t1(i); std::tuple<int&, int> t2(i, 0); std::tuple<int const&, int, double> 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; }