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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
// transform_view::<iterator>::base
#include <ranges>
#include "test_macros.h"
#include "../types.h"
constexpr bool test() {
{
using TransformView = std::ranges::transform_view<MoveOnlyView, PlusOneMutable>;
TransformView tv;
auto it = tv.begin();
using It = decltype(it);
ASSERT_SAME_TYPE(decltype(static_cast<It&>(it).base()), int* const&);
ASSERT_SAME_TYPE(decltype(static_cast<It&&>(it).base()), int*);
ASSERT_SAME_TYPE(decltype(static_cast<const It&>(it).base()), int* const&);
ASSERT_SAME_TYPE(decltype(static_cast<const It&&>(it).base()), int* const&);
ASSERT_NOEXCEPT(it.base());
assert(base(it.base()) == globalBuff);
assert(base(std::move(it).base()) == globalBuff);
}
{
using TransformView = std::ranges::transform_view<InputView, PlusOneMutable>;
TransformView tv;
auto it = tv.begin();
using It = decltype(it);
ASSERT_SAME_TYPE(decltype(static_cast<It&>(it).base()), const cpp20_input_iterator<int*>&);
ASSERT_SAME_TYPE(decltype(static_cast<It&&>(it).base()), cpp20_input_iterator<int*>);
ASSERT_SAME_TYPE(decltype(static_cast<const It&>(it).base()), const cpp20_input_iterator<int*>&);
ASSERT_SAME_TYPE(decltype(static_cast<const It&&>(it).base()), const cpp20_input_iterator<int*>&);
ASSERT_NOEXCEPT(it.base());
assert(base(it.base()) == globalBuff);
assert(base(std::move(it).base()) == globalBuff);
}
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}
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