58 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// UNSUPPORTED: c++03, c++11, c++14, c++1710 11// friend constexpr bool operator==(const iterator& x, const sentinel& y);12 13#include <ranges>14#include <cassert>15 16#include "test_macros.h"17#include "../types.h"18 19constexpr bool test() {20 {21 const std::ranges::iota_view<int, IntComparableWith<int>> io(0, IntComparableWith<int>(10));22 auto iter = io.begin();23 auto sent = io.end();24 assert(iter != sent);25 assert(iter + 10 == sent);26 }27 {28 std::ranges::iota_view<int, IntComparableWith<int>> io(0, IntComparableWith<int>(10));29 auto iter = io.begin();30 auto sent = io.end();31 assert(iter != sent);32 assert(iter + 10 == sent);33 }34 {35 const std::ranges::iota_view io(SomeInt(0), IntComparableWith(SomeInt(10)));36 auto iter = io.begin();37 auto sent = io.end();38 assert(iter != sent);39 assert(iter + 10 == sent);40 }41 {42 std::ranges::iota_view io(SomeInt(0), IntComparableWith(SomeInt(10)));43 auto iter = io.begin();44 auto sent = io.end();45 assert(iter != sent);46 assert(iter + 10 == sent);47 }48 49 return true;50}51 52int main(int, char**) {53 test();54 static_assert(test());55 56 return 0;57}58