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//===----------------------------------------------------------------------===//
//
// 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 <string>
#include <list>
#include <cassert>
#include "test_macros.h"
int main(int, char**)
{
// This regex_iterator uses regex_search(__wrap_iter<_Iter> __first, ...)
// Test for https://llvm.org/PR16240 fixed in r185273.
{
std::string s("aaaa a");
std::regex re("\\ba");
std::sregex_iterator it(s.begin(), s.end(), re);
std::sregex_iterator end = std::sregex_iterator();
assert(it->position(0) == 0);
assert(it->length(0) == 1);
++it;
assert(it->position(0) == 5);
assert(it->length(0) == 1);
++it;
assert(it == end);
}
// This regex_iterator uses regex_search(_BidirectionalIterator __first, ...)
{
std::string s("aaaa a");
std::list<char> l(s.begin(), s.end());
std::regex re("\\ba");
std::regex_iterator<std::list<char>::iterator> it(l.begin(), l.end(), re);
std::regex_iterator<std::list<char>::iterator> end = std::regex_iterator<std::list<char>::iterator>();
assert(it->position(0) == 0);
assert(it->length(0) == 1);
++it;
assert(it->position(0) == 5);
assert(it->length(0) == 1);
++it;
assert(it == end);
}
return 0;
}
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