75 lines
2.7 KiB
C++
75 lines
2.7 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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// constexpr sentinel<false> end();
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// constexpr iterator<false> end() requires common_range<V>;
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// constexpr sentinel<true> end() const
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// requires range<const V> &&
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// regular_invocable<const F&, range_reference_t<const V>>;
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// constexpr iterator<true> end() const
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// requires common_range<const V> &&
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// regular_invocable<const F&, range_reference_t<const V>>;
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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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template<class T>
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concept EndInvocable = requires(T t) { t.end(); };
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template<class T>
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concept EndIsIter = requires(T t) { ++t.end(); };
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constexpr bool test() {
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{
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std::ranges::transform_view transformView(ContiguousView{}, PlusOneMutable{});
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assert(transformView.end().base() == globalBuff + 8);
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}
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{
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std::ranges::transform_view transformView(ForwardView{}, PlusOneMutable{});
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assert(transformView.end().base().base() == globalBuff + 8);
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}
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{
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std::ranges::transform_view transformView(InputView{}, PlusOneMutable{});
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assert(transformView.end().base() == globalBuff + 8);
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}
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{
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const std::ranges::transform_view transformView(ContiguousView{}, PlusOne{});
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assert(transformView.end().base() == globalBuff + 8);
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}
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static_assert(!EndInvocable<const std::ranges::transform_view<ContiguousView, PlusOneMutable>>);
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static_assert( EndInvocable< std::ranges::transform_view<ContiguousView, PlusOneMutable>>);
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static_assert( EndInvocable<const std::ranges::transform_view<ContiguousView, PlusOne>>);
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static_assert(!EndInvocable<const std::ranges::transform_view<InputView, PlusOneMutable>>);
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static_assert( EndInvocable< std::ranges::transform_view<InputView, PlusOneMutable>>);
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static_assert( EndInvocable<const std::ranges::transform_view<InputView, PlusOne>>);
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static_assert(!EndIsIter<const std::ranges::transform_view<InputView, PlusOne>>);
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static_assert(!EndIsIter< std::ranges::transform_view<InputView, PlusOneMutable>>);
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static_assert( EndIsIter<const std::ranges::transform_view<ContiguousView, PlusOne>>);
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static_assert( EndIsIter< std::ranges::transform_view<ContiguousView, PlusOneMutable>>);
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return true;
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}
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int main(int, char**) {
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test();
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static_assert(test());
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return 0;
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}
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