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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-no-concepts
// UNSUPPORTED: gcc-10
// UNSUPPORTED: libcpp-has-no-incomplete-ranges
// constexpr V base() const& requires copy_constructible<V> { return base_; }
// constexpr V base() && { return std::move(base_); }
#include <ranges>
#include "test_macros.h"
#include "types.h"
constexpr bool test() {
std::ranges::drop_view<ContiguousView> dropView1;
auto base1 = std::move(dropView1).base();
assert(std::ranges::begin(base1) == globalBuff);
// Note: we should *not* drop two elements here.
std::ranges::drop_view<ContiguousView> dropView2(ContiguousView{4}, 2);
auto base2 = std::move(dropView2).base();
assert(std::ranges::begin(base2) == globalBuff + 4);
std::ranges::drop_view<CopyableView> dropView3;
auto base3 = dropView3.base();
assert(std::ranges::begin(base3) == globalBuff);
auto base4 = std::move(dropView3).base();
assert(std::ranges::begin(base4) == globalBuff);
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}
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