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libcxx/test/std/re/re.alg/re.alg.search/lookahead.pass.cpp

30 lines
1014 B
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <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);
// https://bugs.llvm.org/show_bug.cgi?id=11118
#include <regex>
#include <cassert>
#include "test_macros.h"
int main()
{
assert(!std::regex_search("ab", std::regex("(?=^)b")));
assert(!std::regex_search("ab", std::regex("a(?=^)b")));
}