Is it possible to call C functions from femtolisp?

Question

I recently came across small lisp dialect called femtolisp, written by Jeff Bezanson, the author of famous Julia Language. (For more information about femtolisp visit https://code.google.com/p/femtolisp/ and https://github.com/JeffBezanson/femtolisp) and I really like it.

However, I wonder is there some way to call C functions from femtolisp?

Answer 1

No, there is currently no way to call arbitrary C functions from within the femtolisp language. As Matt B. says, there is an extension API that lets you write functions in C (which can in turn call any C function) and register them to become callable from femtolisp. It would be possible to use this mechanism to add a ccall function that used e.g. libffi to call any C function.