preproc.hpp

#include <iostream>

#define DEFPROP(name, type_) type_ name;

#define S(_)                                    \
    _(foo, int);                                \
    _(bar, float)

struct MyStruct {
    S(DEFPROP)
};

void print(MyStruct& s) {
#define PRINTPROP(name, type) std::cout << "Name: " << #name << " value: " << s. name << std::endl

    S(PRINTPROP);

#undef PRINTPROP
}

int main() {
    MyStruct s = { 5, 3.141 };

    print(s);
    return 0;
}