75 lines
2.2 KiB
C++
75 lines
2.2 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 V base() const& requires copy_constructible<V> { return base_; }
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// constexpr V base() && { return std::move(base_); }
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#include <ranges>
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#include <cassert>
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#include "test_macros.h"
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#include "types.h"
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constexpr bool test() {
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int buffer[8] = {1, 2, 3, 4, 5, 6, 7, 8};
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// Test common ranges.
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{
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// Test non-const.
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{
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auto rev = std::ranges::reverse_view(BidirRange{buffer});
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assert(rev.base().ptr_ == buffer);
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assert(std::move(rev).base().ptr_ == buffer);
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ASSERT_SAME_TYPE(decltype(rev.base()), BidirRange);
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ASSERT_SAME_TYPE(decltype(std::move(rev).base()), BidirRange);
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}
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// Test const.
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{
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const auto rev = std::ranges::reverse_view(BidirRange{buffer});
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assert(rev.base().ptr_ == buffer);
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assert(std::move(rev).base().ptr_ == buffer);
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ASSERT_SAME_TYPE(decltype(rev.base()), BidirRange);
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ASSERT_SAME_TYPE(decltype(std::move(rev).base()), BidirRange);
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}
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}
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// Test non-common ranges.
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{
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// Test non-const (also move only).
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{
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auto rev = std::ranges::reverse_view(BidirSentRange<MoveOnly>{buffer});
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assert(std::move(rev).base().ptr_ == buffer);
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ASSERT_SAME_TYPE(decltype(std::move(rev).base()), BidirSentRange<MoveOnly>);
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}
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// Test const.
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{
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const auto rev = std::ranges::reverse_view(BidirSentRange<Copyable>{buffer});
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assert(rev.base().ptr_ == buffer);
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assert(std::move(rev).base().ptr_ == buffer);
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ASSERT_SAME_TYPE(decltype(rev.base()), BidirSentRange<Copyable>);
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ASSERT_SAME_TYPE(decltype(std::move(rev).base()), BidirSentRange<Copyable>);
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}
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}
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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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