| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <tuple> |
| |
| // template <class... Types> class tuple; |
| |
| // template <class U1, class U2> tuple(const pair<U1, U2>& u); |
| |
| // UNSUPPORTED: c++03 |
| |
| #include <tuple> |
| #include <utility> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| int main(int, char**) |
| { |
| { |
| typedef std::pair<long, char> T0; |
| typedef std::tuple<long long, short> T1; |
| T0 t0(2, 'a'); |
| T1 t1 = t0; |
| assert(std::get<0>(t1) == 2); |
| assert(std::get<1>(t1) == short('a')); |
| } |
| #if TEST_STD_VER > 11 |
| { |
| typedef std::pair<long, char> P0; |
| typedef std::tuple<long long, short> T1; |
| constexpr P0 p0(2, 'a'); |
| constexpr T1 t1 = p0; |
| static_assert(std::get<0>(t1) == std::get<0>(p0), ""); |
| static_assert(std::get<1>(t1) == std::get<1>(p0), ""); |
| static_assert(std::get<0>(t1) == 2, ""); |
| static_assert(std::get<1>(t1) == short('a'), ""); |
| } |
| #endif |
| |
| return 0; |
| } |