functionp(3)

NAME
functionp() - determine whether or not a given variable is a function pointer.

SYNOPSIS
int functionp(mixed arg);

DESCRIPTION
Return 1 if `arg' is a function pointer and zero (0) otherwise. Function pointers are variables of type 'function' and are constructed as follows: f = (: obj, func :); Note that functionp() will return 0 if obj is not either a valid object pointer or string, and if func is not a string.

SEE ALSO
stringp(3), pointerp(3), objectp(3), lpc/types/function