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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, c++20
// constexpr const W & operator*() const noexcept;
#include <ranges>
#include <cassert>
#include <concepts>
constexpr bool test() {
// unbound
{
std::ranges::repeat_view<int> v(31);
auto iter = v.begin();
const int& val = *iter;
for (int i = 0; i < 100; ++i, ++iter) {
assert(*iter == 31);
assert(&*iter == &val);
}
static_assert(noexcept(*iter));
static_assert(std::same_as<decltype(*iter), const int&>);
}
// bound && one element
{
std::ranges::repeat_view<int, int> v(31, 1);
auto iter = v.begin();
assert(*iter == 31);
static_assert(noexcept(*iter));
static_assert(std::same_as<decltype(*iter), const int&>);
}
// bound && several elements
{
std::ranges::repeat_view<int, int> v(31, 100);
auto iter = v.begin();
const int& val = *iter;
for (int i = 0; i < 100; ++i, ++iter) {
assert(*iter == 31);
assert(&*iter == &val);
}
}
// bound && foreach
{
for (const auto& val : std::views::repeat(31, 100))
assert(val == 31);
}
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}
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