| // Copyright (C) 2014-2021 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-do run { target c++14 } } |
| |
| #include <experimental/tuple> |
| #include <testsuite_hooks.h> |
| |
| void |
| test01() |
| { |
| auto t = std::make_tuple(1, '2', 3.0); |
| std::experimental::apply( [&](int& i, char& c, double& d) { |
| VERIFY(&i == &std::get<int>(t)); |
| VERIFY(&c == &std::get<char>(t)); |
| VERIFY(&d == &std::get<double>(t)); |
| }, t); |
| } |
| |
| constexpr int func(int i, int j) { return i + j; } |
| |
| void |
| test02() |
| { |
| constexpr auto t = std::make_tuple(1, 2); |
| constexpr int i = std::experimental::apply(func, t); |
| VERIFY( i == 3 ); |
| } |
| |
| struct F |
| { |
| int f(int i, int j) const { return i + j; } |
| }; |
| |
| void |
| test03() |
| { |
| auto t = std::make_tuple(F{}, 1, 2); |
| int r = std::experimental::apply(&F::f, t); |
| VERIFY( r == 3 ); |
| } |
| |
| int |
| main() |
| { |
| test01(); |
| test02(); |
| test03(); |
| } |