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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
// lazy_split_view() requires default_initializable<V> && default_initializable<P> = default;
#include <ranges>
#include <cassert>
#include "types.h"
struct ThrowingDefaultCtorForwardView : std::ranges::view_base {
ThrowingDefaultCtorForwardView() noexcept(false);
forward_iterator<int*> begin() const;
forward_iterator<int*> end() const;
};
struct NoDefaultCtorForwardView : std::ranges::view_base {
NoDefaultCtorForwardView() = delete;
forward_iterator<int*> begin() const;
forward_iterator<int*> end() const;
};
static_assert( std::is_default_constructible_v<std::ranges::lazy_split_view<ForwardView, ForwardView>>);
static_assert(!std::is_default_constructible_v<std::ranges::lazy_split_view<NoDefaultCtorForwardView, ForwardView>>);
static_assert(!std::is_default_constructible_v<std::ranges::lazy_split_view<ForwardView, NoDefaultCtorForwardView>>);
static_assert( std::is_nothrow_default_constructible_v<std::ranges::lazy_split_view<ForwardView, ForwardView>>);
static_assert(!std::is_nothrow_default_constructible_v<ThrowingDefaultCtorForwardView>);
static_assert(!std::is_nothrow_default_constructible_v<
std::ranges::lazy_split_view<ThrowingDefaultCtorForwardView, ForwardView>>);
constexpr bool test() {
{
std::ranges::lazy_split_view<CopyableView, ForwardView> v;
assert(v.base() == CopyableView());
}
{
std::ranges::lazy_split_view<CopyableView, ForwardView> v = {};
assert(v.base() == CopyableView());
}
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}
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