1 // Copyright (c) 2016-2021 Antony Polukhin 2 // 3 // Distributed under the Boost Software License, Version 1.0. (See accompanying 4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 5 6 #include <iostream> 7 #include "boost/pfr.hpp" 8 9 struct my_struct { // no ostream operator defined! 10 std::string s; 11 int i; 12 }; 13 main()14int main() { 15 my_struct s{{"Das ist fantastisch!"}, 100}; 16 17 std::cout << "my_struct has " 18 << boost::pfr::tuple_size<my_struct>::value // Outputs: 2 19 << " fields: " 20 << boost::pfr::io(s); // Outputs: {"Das ist fantastisch!", 100}; 21 } 22