53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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 explicit common_view(V r);
|
|
|
|
#include <ranges>
|
|
|
|
#include <cassert>
|
|
#include <utility>
|
|
|
|
#include "test_iterators.h"
|
|
#include "types.h"
|
|
|
|
constexpr bool test() {
|
|
int buf[8] = {1, 2, 3, 4, 5, 6, 7, 8};
|
|
|
|
{
|
|
MoveOnlyView view{buf, buf + 8};
|
|
std::ranges::common_view<MoveOnlyView> common(std::move(view));
|
|
assert(std::move(common).base().begin_ == buf);
|
|
}
|
|
|
|
{
|
|
CopyableView const view{buf, buf + 8};
|
|
std::ranges::common_view<CopyableView> const common(view);
|
|
assert(common.base().begin_ == buf);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
int main(int, char**) {
|
|
test();
|
|
static_assert(test());
|
|
|
|
// Can't compare common_iterator inside constexpr
|
|
{
|
|
int buf[8] = {1, 2, 3, 4, 5, 6, 7, 8};
|
|
MoveOnlyView view{buf, buf + 8};
|
|
std::ranges::common_view<MoveOnlyView> const common(std::move(view));
|
|
assert(common.begin() == buf);
|
|
}
|
|
|
|
return 0;
|
|
}
|