| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| |
| // template<class R> |
| // concept __nothrow_forward_range; |
| |
| #include <memory> |
| |
| #include "test_iterators.h" |
| #include "test_range.h" |
| |
| static_assert(std::ranges::__nothrow_forward_range<test_range<forward_iterator>>); |
| static_assert(!std::ranges::__nothrow_forward_range<test_range<cpp20_input_iterator>>); |
| static_assert(std::ranges::forward_range<test_range<ForwardProxyIterator>>); |
| static_assert(!std::ranges::__nothrow_forward_range<test_range<ForwardProxyIterator>>); |
| |
| constexpr bool forward_subsumes_input(std::ranges::__nothrow_forward_range auto&&) { |
| return true; |
| } |
| constexpr bool forward_subsumes_input(std::ranges::__nothrow_input_range auto&&); |
| |
| static_assert(forward_subsumes_input("foo")); |