| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| |
| // common_view() requires default_initializable<V> = default; |
| |
| #include <ranges> |
| |
| #include <cassert> |
| #include <concepts> |
| |
| #include "test_iterators.h" |
| #include "types.h" |
| |
| int main(int, char**) { |
| static_assert(!std::default_initializable<std::ranges::common_view<MoveOnlyView>>); |
| static_assert( std::default_initializable<std::ranges::common_view<DefaultConstructibleView>>); |
| |
| std::ranges::common_view<DefaultConstructibleView> common; |
| assert(common.begin() == nullptr); |
| assert(common.end() == nullptr); |
| |
| return 0; |
| } |