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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
// repeat_view() requires default_initializable<T> = default;
#include <ranges>
#include <cassert>
#include <concepts>
struct DefaultInt42 {
int value = 42;
};
struct Int {
Int(int) {}
};
static_assert(std::default_initializable<std::ranges::repeat_view<DefaultInt42>>);
static_assert(!std::default_initializable<std::ranges::repeat_view<Int>>);
constexpr bool test() {
std::ranges::repeat_view<DefaultInt42> rv;
assert((*rv.begin()).value == 42);
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}
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