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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
// UNSUPPORTED: libcpp-no-concepts
// UNSUPPORTED: libcpp-has-no-incomplete-ranges
#include "test_macros.h"
#if defined(TEST_COMPILER_CLANG) || defined(TEST_COMPILER_GCC)
#pragma GCC diagnostic ignored "-Wsign-compare"
#elif defined(TEST_COMPILER_MSVC)
#pragma warning(disable: 4018 4389) // various "signed/unsigned mismatch"
#endif
// constexpr auto end() const;
// constexpr iterator end() const requires same_as<W, Bound>;
#include <ranges>
#include <cassert>
#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;
}
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