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-exception
6//
7//===----------------------------------------------------------------------===//
8
9// <iterator>
10
11// template<class T>
12// struct iterator_traits<const T*>
13
14#include <iterator>
15#include <type_traits>
16
17#include "test_macros.h"
18
19struct A {};
20
21int main(int, char**)
22{
23 typedef std::iterator_traits<const volatile A*> It;
24 static_assert((std::is_same<It::difference_type, std::ptrdiff_t>::value), "");
25 static_assert((std::is_same<It::value_type, A>::value), "");
26 static_assert((std::is_same<It::pointer, const volatile A*>::value), "");
27 static_assert((std::is_same<It::reference, const volatile A&>::value), "");
28 static_assert((std::is_same<It::iterator_category, std::random_access_iterator_tag>::value), "");
29#if TEST_STD_VER > 17
30 ASSERT_SAME_TYPE(It::iterator_concept, std::contiguous_iterator_tag);
31#endif
32 return 0;
33}
34

source code of libcxx/test/std/iterators/iterator.primitives/iterator.traits/const_volatile_pointer.pass.cpp