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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
// constexpr common_iterator(S s);
#include <iterator>
#include <cassert>
#include <type_traits>
#include "test_iterators.h"
template<class It>
constexpr bool test() {
using Sent = sentinel_wrapper<It>;
using CommonIt = std::common_iterator<It, Sent>;
int a[] = {1,2,3};
It it = It(a);
Sent sent = Sent(It(a+1));
CommonIt lv = CommonIt(sent);
assert(lv == CommonIt(sent));
assert(lv != CommonIt(it));
if (!std::is_constant_evaluated()) {
assert(lv == std::next(CommonIt(it)));
}
CommonIt rv = CommonIt(std::move(sent));
assert(rv == CommonIt(sent));
assert(rv != CommonIt(it));
if (!std::is_constant_evaluated()) {
assert(rv == std::next(CommonIt(it)));
}
return true;
}
int main(int, char**) {
test<cpp17_input_iterator<int*>>();
test<forward_iterator<int*>>();
test<bidirectional_iterator<int*>>();
test<random_access_iterator<int*>>();
test<contiguous_iterator<int*>>();
test<int*>();
test<const int*>();
static_assert(test<cpp17_input_iterator<int*>>());
static_assert(test<forward_iterator<int*>>());
static_assert(test<bidirectional_iterator<int*>>());
static_assert(test<random_access_iterator<int*>>());
static_assert(test<contiguous_iterator<int*>>());
static_assert(test<int*>());
static_assert(test<const int*>());
return 0;
}
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