36 lines
1.0 KiB
C++
36 lines
1.0 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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//
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// template<class T, class Pred>
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// inline constexpr bool enable_borrowed_range<drop_while_view<T, Pred>> =
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// enable_borrowed_range<T>;
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#include <ranges>
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struct NonBorrowed : std::ranges::view_base {
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int* begin();
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int* end();
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};
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struct Borrowed : std::ranges::view_base {
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int* begin();
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int* end();
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};
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struct Pred {
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bool operator()(int) const;
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};
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template <>
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inline constexpr bool std::ranges::enable_borrowed_range<Borrowed> = true;
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static_assert(!std::ranges::borrowed_range<std::ranges::drop_while_view<NonBorrowed, Pred>>);
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static_assert(std::ranges::borrowed_range<std::ranges::drop_while_view<Borrowed, Pred>>);
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