//===----------------------------------------------------------------------===// // // 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> // class match_results<BidirectionalIterator, Allocator> // const_reference prefix() const; #include <regex> #include <cassert> void test() { std::match_results<const char*> m; const char s[] = "abcdefghijk"; assert(std::regex_search(s, m, std::regex("cd((e)fg)hi"))); assert(m.prefix().first == s); assert(m.prefix().second == s+2); assert(m.prefix().matched == true); } int main() { test(); }