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https://github.com/capstone-engine/llvm-capstone.git
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02540b2f6d
Before this patch, we would fail to implicitly convert the result of predicates to bool, which means we'd potentially perform a copy or move construction of the boolean-testable, which isn't allowed. The same holds true for comparing iterators against sentinels, which is allowed to return a boolean-testable type. We already had tests aiming to ensure correct handling of these types, but they failed to provide appropriate coverage in several cases due to guaranteed RVO. This patch fixes the tests, adds tests for missing algorithms and views, and fixes the actual problems in the code. Fixes #69074
64 lines
2.3 KiB
C++
64 lines
2.3 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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#ifndef _LIBCPP___ALGORITHM_RANGES_REMOVE_H
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#define _LIBCPP___ALGORITHM_RANGES_REMOVE_H
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#include <__config>
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#include <__algorithm/ranges_remove_if.h>
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#include <__functional/identity.h>
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#include <__functional/ranges_operations.h>
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#include <__iterator/concepts.h>
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#include <__iterator/permutable.h>
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#include <__iterator/projected.h>
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#include <__ranges/access.h>
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#include <__ranges/concepts.h>
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#include <__ranges/subrange.h>
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#include <__utility/move.h>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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#if _LIBCPP_STD_VER >= 20
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_LIBCPP_BEGIN_NAMESPACE_STD
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namespace ranges {
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namespace __remove {
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struct __fn {
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template <permutable _Iter, sentinel_for<_Iter> _Sent, class _Type, class _Proj = identity>
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requires indirect_binary_predicate<ranges::equal_to, projected<_Iter, _Proj>, const _Type*>
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_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr subrange<_Iter>
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operator()(_Iter __first, _Sent __last, const _Type& __value, _Proj __proj = {}) const {
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auto __pred = [&](auto&& __other) -> bool { return __value == __other; };
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return ranges::__remove_if_impl(std::move(__first), std::move(__last), __pred, __proj);
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}
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template <forward_range _Range, class _Type, class _Proj = identity>
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requires permutable<iterator_t<_Range>> &&
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indirect_binary_predicate<ranges::equal_to, projected<iterator_t<_Range>, _Proj>, const _Type*>
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_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr borrowed_subrange_t<_Range>
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operator()(_Range&& __range, const _Type& __value, _Proj __proj = {}) const {
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auto __pred = [&](auto&& __other) -> bool { return __value == __other; };
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return ranges::__remove_if_impl(ranges::begin(__range), ranges::end(__range), __pred, __proj);
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}
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};
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} // namespace __remove
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inline namespace __cpo {
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inline constexpr auto remove = __remove::__fn{};
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} // namespace __cpo
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} // namespace ranges
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_STD_VER >= 20
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#endif // _LIBCPP___ALGORITHM_RANGES_REMOVE_H
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