1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <regex> 11 12 // class match_results<BidirectionalIterator, Allocator> 13 14 // const_reference prefix() const; 15 16 #include <regex> 17 #include <cassert> 18 #include "test_macros.h" 19 20 void test()21test() 22 { 23 std::match_results<const char*> m; 24 const char s[] = "abcdefghijk"; 25 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi"))); 26 27 assert(m.prefix().first == s); 28 assert(m.prefix().second == s+2); 29 assert(m.prefix().matched == true); 30 } 31 main()32int main() 33 { 34 test(); 35 } 36