ceph/src/boost/libs/pfr/test/run/motivating_example2.cpp

   1 // Copyright (c) 2016-2022 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
  14 int 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 }