| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <regex> |
| |
| // template <class BidirectionalIterator, class Allocator, class charT, class traits> |
| // bool |
| // regex_search(BidirectionalIterator first, BidirectionalIterator last, |
| // match_results<BidirectionalIterator, Allocator>& m, |
| // const basic_regex<charT, traits>& e, |
| // regex_constants::match_flag_type flags = regex_constants::match_default); |
| |
| #include <regex> |
| #include <cassert> |
| #include "test_macros.h" |
| |
| int main(int, char**) |
| { |
| // Iterating over /^a/ should yield one instance at the beginning |
| // of the text. |
| |
| const char *text = "aaa\naa"; |
| std::regex re("^a"); |
| std::cregex_iterator it(text, text+6, re); |
| std::cregex_iterator end = std::cregex_iterator(); |
| |
| assert(it->str() == "a"); |
| assert(it->position(0) == 0); |
| assert(it->length(0) == 1); |
| |
| ++it; |
| assert(it == end); |
| |
| return 0; |
| } |