66 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// <regex>10 11// template <class BidirectionalIterator, class Allocator, class charT, class traits>12// bool13// regex_search(BidirectionalIterator first, BidirectionalIterator last,14// match_results<BidirectionalIterator, Allocator>& m,15// const basic_regex<charT, traits>& e,16// regex_constants::match_flag_type flags = regex_constants::match_default);17 18#include <regex>19#include <string>20#include <list>21#include <cassert>22#include "test_macros.h"23 24int main(int, char**)25{26 // This regex_iterator uses regex_search(__wrap_iter<_Iter> __first, ...)27 // Test for https://llvm.org/PR16240 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 = std::sregex_iterator();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 = std::regex_iterator<std::list<char>::iterator>();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 return 0;65}66