| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| |
| #include "test_macros.h" |
| |
| TEST_CLANG_DIAGNOSTIC_IGNORED("-Wsign-compare") |
| TEST_GCC_DIAGNOSTIC_IGNORED("-Wsign-compare") |
| TEST_MSVC_DIAGNOSTIC_IGNORED(4018 4389) // various "signed/unsigned mismatch" |
| |
| // constexpr auto end() const; |
| // constexpr iterator end() const requires same_as<W, Bound>; |
| |
| #include <cassert> |
| #include <ranges> |
| #include <utility> |
| |
| #include "types.h" |
| |
| template<class T, class U> |
| constexpr void testType(U u) { |
| { |
| std::ranges::iota_view<T, U> io(T(0), u); |
| assert(std::ranges::next(io.begin(), 10) == io.end()); |
| } |
| { |
| std::ranges::iota_view<T, U> io(T(10), u); |
| assert(io.begin() == io.end()); |
| assert(io.begin() == std::move(io).end()); |
| } |
| { |
| const std::ranges::iota_view<T, U> io(T(0), u); |
| assert(std::ranges::next(io.begin(), 10) == io.end()); |
| assert(std::ranges::next(io.begin(), 10) == std::move(io).end()); |
| } |
| { |
| const std::ranges::iota_view<T, U> io(T(10), u); |
| assert(io.begin() == io.end()); |
| } |
| |
| { |
| std::ranges::iota_view<T> io(T(0), std::unreachable_sentinel); |
| assert(io.begin() != io.end()); |
| assert(std::ranges::next(io.begin()) != io.end()); |
| assert(std::ranges::next(io.begin(), 10) != io.end()); |
| } |
| { |
| const std::ranges::iota_view<T> io(T(0), std::unreachable_sentinel); |
| assert(io.begin() != io.end()); |
| assert(std::ranges::next(io.begin()) != io.end()); |
| assert(std::ranges::next(io.begin(), 10) != io.end()); |
| } |
| } |
| |
| constexpr bool test() { |
| testType<SomeInt>(SomeInt(10)); |
| testType<SomeInt>(IntComparableWith(SomeInt(10))); |
| testType<signed long>(IntComparableWith<signed long>(10)); |
| testType<unsigned long>(IntComparableWith<unsigned long>(10)); |
| testType<int>(IntComparableWith<int>(10)); |
| testType<int>(int(10)); |
| testType<int>(unsigned(10)); |
| testType<unsigned>(unsigned(10)); |
| testType<unsigned>(int(10)); |
| testType<unsigned>(IntComparableWith<unsigned>(10)); |
| testType<short>(short(10)); |
| testType<short>(IntComparableWith<short>(10)); |
| testType<unsigned short>(IntComparableWith<unsigned short>(10)); |
| |
| return true; |
| } |
| |
| int main(int, char**) { |
| test(); |
| static_assert(test()); |
| |
| return 0; |
| } |