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 // http://llvm.org/bugs/show_bug.cgi?id=11118
20 
21 #include <regex>
22 #include <cassert>
23 
main()24 int main()
25 {
26     assert(!std::regex_search("ab", std::regex("(?=^)b")));
27     assert(!std::regex_search("ab", std::regex("a(?=^)b")));
28 }
29