DESCRIPTION¶
returns true if arg was passed by reference to the current function, instead of the usual call-by-value.
Note that arg has to be passed by reference to the efun, a.g. referencep(&x).
SEE ALSO¶
reference clonep(E), closurep(E), floatp(E), mappingp(E), objectp(E), intp(E), pointerp(E), stringp(E), symbolp(E), structp(E)