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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
// Test that iota_view conforms to range and view concepts.
#include <ranges>
#include "types.h"
struct Decrementable {
using difference_type = int;
auto operator<=>(const Decrementable&) const = default;
Decrementable& operator++();
Decrementable operator++(int);
Decrementable& operator--();
Decrementable operator--(int);
};
struct Incrementable {
using difference_type = int;
auto operator<=>(const Incrementable&) const = default;
Incrementable& operator++();
Incrementable operator++(int);
};
static_assert(std::ranges::random_access_range<std::ranges::iota_view<int>>);
static_assert(std::ranges::random_access_range<const std::ranges::iota_view<int>>);
static_assert(std::ranges::bidirectional_range<std::ranges::iota_view<Decrementable>>);
static_assert(std::ranges::forward_range<std::ranges::iota_view<Incrementable>>);
static_assert(std::ranges::input_range<std::ranges::iota_view<NotIncrementable>>);
static_assert(std::ranges::view<std::ranges::iota_view<int>>);
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