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 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
