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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// constexpr V base() const& requires copy_constructible<V> { return base_; }
// constexpr V base() && { return std::move(base_); }
#include <ranges>
#include <cassert>
#include <concepts>
#include "types.h"
constexpr bool test() {
int buffer[8] = {1, 2, 3, 4, 5, 6, 7, 8};
// Test common ranges.
{
// Test non-const.
{
auto rev = std::ranges::reverse_view(BidirRange{buffer, buffer + 8});
std::same_as<BidirRange> auto base = rev.base();
assert(base.begin_ == buffer);
assert(base.end_ == buffer + 8);
std::same_as<BidirRange> auto moved = std::move(rev).base();
assert(moved.begin_ == buffer);
assert(moved.end_ == buffer + 8);
}
// Test const.
{
const auto rev = std::ranges::reverse_view(BidirRange{buffer, buffer + 8});
std::same_as<BidirRange> auto base = rev.base();
assert(base.begin_ == buffer);
assert(base.end_ == buffer + 8);
std::same_as<BidirRange> auto moved = std::move(rev).base();
assert(moved.begin_ == buffer);
assert(moved.end_ == buffer + 8);
}
}
// Test non-common ranges.
{
// Test non-const (also move only).
{
auto rev = std::ranges::reverse_view(BidirSentRange<MoveOnly>{buffer, buffer + 8});
std::same_as<BidirSentRange<MoveOnly>> auto base = std::move(rev).base();
assert(base.begin_ == buffer);
assert(base.end_ == buffer + 8);
}
// Test const.
{
const auto rev = std::ranges::reverse_view(BidirSentRange<Copyable>{buffer, buffer + 8});
std::same_as<BidirSentRange<Copyable>> auto base = rev.base();
assert(base.begin_ == buffer);
assert(base.end_ == buffer + 8);
std::same_as<BidirSentRange<Copyable>> auto moved = std::move(rev).base();
assert(moved.begin_ == buffer);
assert(moved.end_ == buffer + 8);
}
}
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}
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