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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 <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;
}
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