Re: built-in function and primitive function

[Johan Bockgård]

A Soare <alinsoar@voila.fr> writes:

> Is there some difference between `built-in function' and `primitive
> function'?

(info "(elisp)Primitive Function Type")

    2.3.15 Primitive Function Type
    ------------------------------

    A "primitive function" is a function callable from Lisp but
    written in the C programming language. Primitive functions are
    also called "subrs" or "built-in functions". (The word "subr" is
    derived from "subroutine.") [...]