Split a struct into a tuple [duplicate]

Question

The question is pretty straight, how could I generate :

std::tuple<float, int, double>

If I know the type :

struct Foo { float a; int b; double c; };

And how could I retrieve the data, in both convertion?

Answer 1

You cannot do this in C++, as it would require a language feature known as reflection.

Instead, "manually" build the tuple or just begin with a tuple in the first place.

Alternatively, you could build a script in Python (or similar) to preprocess your code and auto-generate the resulting conversion.