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 // <regex>
11
12 // template <class BidirectionalIterator, class Allocator, class charT, class traits>
13 // bool
14 // regex_search(BidirectionalIterator first, BidirectionalIterator last,
15 // match_results<BidirectionalIterator, Allocator>& m,
16 // const basic_regex<charT, traits>& e,
17 // regex_constants::match_flag_type flags = regex_constants::match_default);
18
19 #include <regex>
20 #include <string>
21 #include <list>
22 #include <cassert>
23 #include "test_macros.h"
24
main()25 int main()
26 {
27 // This regex_iterator uses regex_search(__wrap_iter<_Iter> __first, ...)
28 // Test for https://bugs.llvm.org/show_bug.cgi?id=16240 fixed in r185273.
29 {
30 std::string s("aaaa a");
31 std::regex re("\\ba");
32 std::sregex_iterator it(s.begin(), s.end(), re);
33 std::sregex_iterator end = std::sregex_iterator();
34
35 assert(it->position(0) == 0);
36 assert(it->length(0) == 1);
37
38 ++it;
39 assert(it->position(0) == 5);
40 assert(it->length(0) == 1);
41
42 ++it;
43 assert(it == end);
44 }
45
46 // This regex_iterator uses regex_search(_BidirectionalIterator __first, ...)
47 {
48 std::string s("aaaa a");
49 std::list<char> l(s.begin(), s.end());
50 std::regex re("\\ba");
51 std::regex_iterator<std::list<char>::iterator> it(l.begin(), l.end(), re);
52 std::regex_iterator<std::list<char>::iterator> end = std::regex_iterator<std::list<char>::iterator>();
53
54 assert(it->position(0) == 0);
55 assert(it->length(0) == 1);
56
57 ++it;
58 assert(it->position(0) == 5);
59 assert(it->length(0) == 1);
60
61 ++it;
62 assert(it == end);
63 }
64 }
65