pfr/README.md

#Magic Get

This C++14 library is meant for accessing structure elements by index and providing other std::tuple like methods for user defined POD types.

Latest documentation

Pre Boost version

Motivating example

#include <iostream>
#include "magic_get.hpp"

struct my_struct {
    int i;
    char c;
    double d;
};

int main() {
    my_struct s{100, 'H', 3.141593 };
    std::cout << "my_struct has " << flat_tuple_size<my_struct>::value << " fields: "
        << "{ " << flat_get<0>(s) << ", " << flat_get<1>(s)<< ", " << flat_get<2>(s) << " }\n";
}

Outputs:

my_struct has 3 fields: { 100, H, 3.14159 }

Requirements and Limitations

• C++14 compatible compiler (GCC-5.0+, Clang, ...)
• T must be POD and must not contain references nor bitfields
• T must not contain pointers to user defined types
• Enums will be returned as their underlying type
• Static variables are ignored

License

Distributed under the Boost Software License, Version 1.0.