3666dd795d
If you have a `begin() const` member, you don't need a `begin()` member unless you want it to do something different (e.g. have a different return type). So in general, //view// types don't need `begin()` non-const members. Also, static_assert some things about the types in "types.h", so that we don't accidentally break those properties under refactoring. Differential Revision: https://reviews.llvm.org/D111231
35 lines
1.1 KiB
C++
35 lines
1.1 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-no-concepts
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// UNSUPPORTED: libcpp-has-no-incomplete-ranges
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// template<class T>
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// inline constexpr bool enable_borrowed_range<common_view<T>> = enable_borrowed_range<T>;
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#include <ranges>
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#include <cassert>
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#include "test_iterators.h"
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struct View : std::ranges::view_base {
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int *begin() const;
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sentinel_wrapper<int*> end() const;
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};
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struct BorrowableView : std::ranges::view_base {
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int *begin() const;
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sentinel_wrapper<int*> end() const;
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};
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template<>
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inline constexpr bool std::ranges::enable_borrowed_range<BorrowableView> = true;
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static_assert(!std::ranges::enable_borrowed_range<std::ranges::common_view<View>>);
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static_assert( std::ranges::enable_borrowed_range<std::ranges::common_view<BorrowableView>>);
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