1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <iterator>
11
12// move_iterator
13
14// template <RandomAccessIterator Iter1, RandomAccessIterator Iter2>
15//   requires HasMinus<Iter1, Iter2>
16//   auto
17//   operator-(const move_iterator<Iter1>& x, const move_iterator<Iter2>& y)
18//   -> decltype(x.base() - y.base());
19
20#include <iterator>
21#include <cassert>
22
23#include "test_iterators.h"
24
25template <class It>
26void
27test(It l, It r, typename std::iterator_traits<It>::difference_type x)
28{
29    const std::move_iterator<It> r1(l);
30    const std::move_iterator<It> r2(r);
31    assert(r1 - r2 == x);
32}
33
34int main()
35{
36    char s[] = "1234567890";
37    test(random_access_iterator<char*>(s+5), random_access_iterator<char*>(s), 5);
38    test(s+5, s, 5);
39}
40