| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++03, c++11, c++14, c++17 |
| // UNSUPPORTED: libcpp-no-concepts |
| // UNSUPPORTED: libcpp-has-no-incomplete-ranges |
| |
| // class std::ranges::subrange; |
| |
| #include <ranges> |
| |
| #include "types.h" |
| #include <cassert> |
| #include "test_macros.h" |
| #include "test_iterators.h" |
| #include <tuple> |
| #include <utility> |
| |
| static_assert( std::is_convertible_v<ForwardSubrange, std::pair<ForwardIter, ForwardIter>>); |
| static_assert( std::is_convertible_v<ForwardSubrange, std::tuple<ForwardIter, ForwardIter>>); |
| static_assert(!std::is_convertible_v<ForwardSubrange, std::tuple<ForwardIter, ForwardIter>&>); |
| static_assert(!std::is_convertible_v<ForwardSubrange, std::tuple<ForwardIter, ForwardIter, ForwardIter>>); |
| static_assert( std::is_convertible_v<ConvertibleForwardSubrange, std::tuple<ConvertibleForwardIter, int*>>); |
| static_assert(!std::is_convertible_v<SizedIntPtrSubrange, std::tuple<long*, int*>>); |
| static_assert( std::is_convertible_v<SizedIntPtrSubrange, std::tuple<int*, int*>>); |
| |
| constexpr bool test() { |
| ForwardSubrange a(ForwardIter(globalBuff), ForwardIter(globalBuff + 8)); |
| std::pair<ForwardIter, ForwardIter> aPair = a; |
| assert(aPair.first.base() == globalBuff); |
| assert(aPair.second.base() == globalBuff + 8); |
| std::tuple<ForwardIter, ForwardIter> aTuple = a; |
| assert(get<0>(aTuple).base() == globalBuff); |
| assert(get<1>(aTuple).base() == globalBuff + 8); |
| |
| return true; |
| } |
| |
| int main(int, char**) { |
| test(); |
| static_assert(test()); |
| |
| return 0; |
| } |