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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 outer-iterator::value-type outer-iterator::operator*() const;
#include <ranges>
#include <algorithm>
#include <cassert>
#include <string>
#include <string_view>
#include <type_traits>
#include "../types.h"
template <class View, class Separator>
constexpr void test_one(Separator sep) {
using namespace std::string_literals;
using namespace std::string_view_literals;
View v("abc def ghi"sv, sep);
// Non-const iterator.
{
auto i = v.begin();
static_assert(!std::is_reference_v<decltype(*i)>);
assert(std::ranges::equal(*i, "abc"s));
assert(std::ranges::equal(*(++i), "def"s));
assert(std::ranges::equal(*(++i), "ghi"s));
}
// Const iterator.
{
const auto ci = v.begin();
static_assert(!std::is_reference_v<decltype(*ci)>);
assert(std::ranges::equal(*ci, "abc"s));
}
}
constexpr bool test() {
// `View` is a forward range.
test_one<SplitViewDiff>(" ");
test_one<SplitViewInput>(' ');
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}
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