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 24 int main() 25 { 26 // This regex_iterator uses regex_search(__wrap_iter<_Iter> __first, ...) 27 // Test for http://llvm.org/bugs/show_bug.cgi?id=16240 fixed in r185273. 28 { 29 std::string s{"aaaa a"}; 30 std::regex re{"\\ba"}; 31 std::sregex_iterator it{s.begin(), s.end(), re}; 32 std::sregex_iterator end{}; 33 34 assert(it->position(0) == 0); 35 assert(it->length(0) == 1); 36 37 ++it; 38 assert(it->position(0) == 5); 39 assert(it->length(0) == 1); 40 41 ++it; 42 assert(it == end); 43 } 44 45 // This regex_iterator uses regex_search(_BidirectionalIterator __first, ...) 46 { 47 std::string s{"aaaa a"}; 48 std::list<char> l{s.begin(), s.end()}; 49 std::regex re{"\\ba"}; 50 std::regex_iterator<std::list<char>::iterator> it{l.begin(), l.end(), re}; 51 std::regex_iterator<std::list<char>::iterator> end{}; 52 53 assert(it->position(0) == 0); 54 assert(it->length(0) == 1); 55 56 ++it; 57 assert(it->position(0) == 5); 58 assert(it->length(0) == 1); 59 60 ++it; 61 assert(it == end); 62 } 63 } 64
