forked from OSchip/llvm-project
33 lines
1.4 KiB
C++
33 lines
1.4 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 R>
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// drop_view(R&&, range_difference_t<R>) -> drop_view<views::all_t<R>>;
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#include <ranges>
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#include "test_macros.h"
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#include "types.h"
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namespace ranges = std::ranges;
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static_assert(std::same_as<decltype(ranges::drop_view(MoveOnlyView(), 0)), ranges::drop_view<MoveOnlyView>>);
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static_assert(std::same_as<decltype(ranges::drop_view(CopyableView(), 0)), ranges::drop_view<CopyableView>>);
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static_assert(std::same_as<decltype(ranges::drop_view(ForwardView(), 0)), ranges::drop_view<ForwardView>>);
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static_assert(std::same_as<decltype(ranges::drop_view(InputView(), 0)), ranges::drop_view<InputView>>);
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static_assert(std::same_as<decltype(ranges::drop_view(std::declval<ForwardRange&>(), 0)),
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ranges::drop_view<ranges::ref_view<ForwardRange>>>);
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static_assert(std::same_as<decltype(ranges::drop_view(BorrowableRange(), 0)),
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ranges::drop_view<ranges::subrange<int*>>>);
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