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 <cassert> 21 22 int main() 23 { 24 // Iterating over /^a/ should yield one instance at the beginning 25 // of the text. 26 27 const char *text = "aaa\naa"; 28 std::regex re{"^a"}; 29 std::cregex_iterator it{text, text+6, re}; 30 std::cregex_iterator end{}; 31 32 assert(it->str() == "a"); 33 assert(it->position(0) == 0); 34 assert(it->length(0) == 1); 35 36 ++it; 37 assert(it == end); 38 } 39
