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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
// template<class W, class Bound>
// requires (!is-integer-like<W> || !is-integer-like<Bound> ||
// (is-signed-integer-like<W> == is-signed-integer-like<Bound>))
// iota_view(W, Bound) -> iota_view<W, Bound>;
#include <ranges>
#include <cassert>
#include <concepts>
#include "test_macros.h"
#include "types.h"
template<class T, class U>
concept CanDeduce = requires(const T& t, const U& u) {
std::ranges::iota_view(t, u);
};
void test() {
static_assert(std::same_as<
decltype(std::ranges::iota_view(0, 0)),
std::ranges::iota_view<int, int>
>);
static_assert(std::same_as<
decltype(std::ranges::iota_view(0)),
std::ranges::iota_view<int, std::unreachable_sentinel_t>
>);
static_assert(std::same_as<
decltype(std::ranges::iota_view(0, std::unreachable_sentinel)),
std::ranges::iota_view<int, std::unreachable_sentinel_t>
>);
static_assert(std::same_as<
decltype(std::ranges::iota_view(0, IntComparableWith(0))),
std::ranges::iota_view<int, IntComparableWith<int>>
>);
static_assert( CanDeduce<int, int>);
static_assert(!CanDeduce<int, unsigned>);
static_assert(!CanDeduce<unsigned, int>);
}
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