| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| |
| // template<class R> |
| // concept common_range; |
| |
| #include <ranges> |
| |
| #include "test_iterators.h" |
| #include "test_range.h" |
| |
| |
| |
| static_assert(!std::ranges::common_range<test_range<cpp17_input_iterator> >); |
| static_assert(!std::ranges::common_range<test_range<cpp17_input_iterator> const>); |
| |
| static_assert(!std::ranges::common_range<test_non_const_range<cpp17_input_iterator> >); |
| static_assert(!std::ranges::common_range<test_non_const_range<cpp17_input_iterator> const>); |
| |
| static_assert(std::ranges::common_range<test_common_range<cpp17_input_iterator> >); |
| static_assert(std::ranges::common_range<test_common_range<cpp17_input_iterator> const>); |
| |
| static_assert(std::ranges::common_range<test_non_const_common_range<cpp17_input_iterator> >); |
| static_assert(!std::ranges::common_range<test_non_const_common_range<cpp17_input_iterator> const>); |
| |
| struct subtly_not_common { |
| int* begin() const; |
| int const* end() const; |
| }; |
| static_assert(std::ranges::range<subtly_not_common> && !std::ranges::common_range<subtly_not_common>); |
| static_assert(std::ranges::range<subtly_not_common const> && !std::ranges::common_range<subtly_not_common const>); |
| |
| struct common_range_non_const_only { |
| int* begin() const; |
| int* end(); |
| int const* end() const; |
| }; |
| static_assert(std::ranges::range<common_range_non_const_only>&& std::ranges::common_range<common_range_non_const_only>); |
| static_assert(std::ranges::range<common_range_non_const_only const> && !std::ranges::common_range<common_range_non_const_only const>); |
| |
| struct common_range_const_only { |
| int* begin(); |
| int const* begin() const; |
| int const* end() const; |
| }; |
| static_assert(std::ranges::range<common_range_const_only> && !std::ranges::common_range<common_range_const_only>); |
| static_assert(std::ranges::range<common_range_const_only const>&& std::ranges::common_range<common_range_const_only const>); |