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 // reverse_iterator
13 
14 // reverse_iterator operator--(int);
15 
16 #include <iterator>
17 #include <cassert>
18 
19 #include "test_iterators.h"
20 
21 template <class It>
22 void
test(It i,It x)23 test(It i, It x)
24 {
25     std::reverse_iterator<It> r(i);
26     std::reverse_iterator<It> rr = r--;
27     assert(r.base() == x);
28     assert(rr.base() == i);
29 }
30 
main()31 int main()
32 {
33     const char* s = "123";
34     test(bidirectional_iterator<const char*>(s+1), bidirectional_iterator<const char*>(s+2));
35     test(random_access_iterator<const char*>(s+1), random_access_iterator<const char*>(s+2));
36     test(s+1, s+2);
37 }
38