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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 auto size() const requires (!same_as<Bound, unreachable_sentinel_t>);
#include <ranges>
#include <numeric>
#include <concepts>
#include <cassert>
#include <iterator>
template <class T>
concept has_size = requires(T&& view) {
{ std::forward<T>(view).size() };
};
static_assert(has_size<std::ranges::repeat_view<int, int>>);
static_assert(!has_size<std::ranges::repeat_view<int>>);
static_assert(!has_size<std::ranges::repeat_view<int, std::unreachable_sentinel_t>>);
constexpr bool test() {
{
std::ranges::repeat_view<int, int> rv(10, 20);
assert(rv.size() == 20);
}
{
std::ranges::repeat_view<int, int> rv(10, std::numeric_limits<int>::max());
assert(rv.size() == std::numeric_limits<int>::max());
}
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}
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