d2baefae68
All supported compilers that support C++20 now support concepts. So, remove `_LIB_LIBCPP_HAS_NO_CONCEPTS` in favor of `_LIBCPP_STD_VER > 17`. Similarly in the tests, remove `// UNSUPPORTED: libcpp-no-concepts`. Differential Revision: https://reviews.llvm.org/D121528
53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14, c++17
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// UNSUPPORTED: libcpp-has-no-incomplete-ranges
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// template<class T>
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// concept range;
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#include <ranges>
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#include <vector>
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#include "test_range.h"
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static_assert(std::ranges::range<test_range<cpp20_input_iterator> >);
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struct incompatible_iterators {
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int* begin();
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long* end();
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};
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static_assert(!std::ranges::range<incompatible_iterators>);
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struct int_begin_int_end {
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int begin();
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int end();
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};
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static_assert(!std::ranges::range<int_begin_int_end>);
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struct iterator_begin_int_end {
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int* begin();
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int end();
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};
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static_assert(!std::ranges::range<iterator_begin_int_end>);
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struct int_begin_iterator_end {
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int begin();
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int* end();
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};
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static_assert(!std::ranges::range<int_begin_iterator_end>);
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// Test ADL-proofing.
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struct Incomplete;
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template<class T> struct Holder { T t; };
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static_assert(!std::ranges::range<Holder<Incomplete>*>);
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