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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
// UNSUPPORTED: libcpp-has-no-incomplete-ranges
// constexpr explicit sentinel(Parent& parent);
#include <cassert>
#include <ranges>
#include "test_macros.h"
#include "../types.h"
constexpr bool test() {
int buffer[4][4] = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10, 11, 12}, {13, 14, 15, 16}};
CopyableChild children[4] = {CopyableChild(buffer[0]), CopyableChild(buffer[1]), CopyableChild(buffer[2]), CopyableChild(buffer[3])};
CopyableParent parent{children};
std::ranges::join_view jv(parent);
std::ranges::sentinel_t<decltype(jv)> sent(jv);
assert(sent == std::ranges::next(jv.begin(), 16));
return true;
}
int main(int, char**) {
test();
static_assert(test());
{
// Test explicitness.
using Parent = std::ranges::join_view<ParentView<ChildView>>;
static_assert( std::is_constructible_v<std::ranges::sentinel_t<Parent>, Parent&>);
static_assert(!std::is_convertible_v<std::ranges::sentinel_t<Parent>, Parent&>);
}
return 0;
}
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