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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 iterator(split_view& parent, iterator_t<V> current, subrange<iterator_t<V>> next);
#include <cassert>
#include <ranges>
#include "../types.h"
struct TracedMoveIter : ForwardIterBase<TracedMoveIter> {
bool moved = false;
constexpr TracedMoveIter() = default;
constexpr TracedMoveIter(const TracedMoveIter&) = default;
constexpr TracedMoveIter(TracedMoveIter&&) : moved{true} {}
constexpr TracedMoveIter& operator=(TracedMoveIter&&) = default;
constexpr TracedMoveIter& operator=(const TracedMoveIter&) = default;
};
struct TracedMoveView : std::ranges::view_base {
constexpr TracedMoveIter begin() const { return {}; }
constexpr TracedMoveIter end() const { return {}; }
};
constexpr bool test() {
using SplitView = std::ranges::split_view<TracedMoveView, TracedMoveView>;
using SplitIter = std::ranges::iterator_t<SplitView>;
SplitView sv{TracedMoveView{}, TracedMoveView{}};
SplitIter iter = {sv, sv.base().begin(), std::ranges::subrange<TracedMoveIter>{sv.base().begin(), sv.base().end()}};
assert(iter.base().moved);
auto subRange = *iter;
assert(subRange.begin().moved);
assert(subRange.end().moved);
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}
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