39 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// class match_results<BidirectionalIterator, Allocator>12 13// string_type str(size_type sub = 0) const;14 15#include <regex>16#include <cassert>17#include "test_macros.h"18 19void20test()21{22 std::match_results<const char*> m;23 const char s[] = "abcdefghijk";24 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));25 assert(m.str() == std::string(m[0]));26 assert(m.str(0) == std::string(m[0]));27 assert(m.str(1) == std::string(m[1]));28 assert(m.str(2) == std::string(m[2]));29 assert(m.str(3) == std::string(m[3]));30 assert(m.str(4) == std::string(m[4]));31}32 33int main(int, char**)34{35 test();36 37 return 0;38}39