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// reverse_iterator
12
13// explicit reverse_iterator(Iter x); // constexpr since C++17
14
15#include <iterator>
16#include <cassert>
17
18#include "test_macros.h"
19#include "test_iterators.h"
20
21template <class It>
22TEST_CONSTEXPR_CXX17 void test(It i) {
23 std::reverse_iterator<It> r(i);
24 assert(r.base() == i);
25}
26
27TEST_CONSTEXPR_CXX17 bool tests() {
28 const char s[] = "123";
29 test(bidirectional_iterator<const char*>(s));
30 test(random_access_iterator<const char*>(s));
31 test(s);
32 return true;
33}
34
35int main(int, char**) {
36 tests();
37#if TEST_STD_VER > 14
38 static_assert(tests(), "");
39#endif
40 return 0;
41}
42

source code of libcxx/test/std/iterators/predef.iterators/reverse.iterators/reverse.iter.cons/ctor.iter.pass.cpp