efun: extern_call

SYNOPSIS:

        int extern_call();

DESCRIPTION:

        Returns zero, if the function that is currently being executed
        was called by a local call, non-zero for call_other(), driver
        applies, closure calls, etc. Currently the only return value
        for them is 1, but later the various methods may be
        distinguished by means of the return value.

HISTORY:

        Introduced in 3.2@263 resp. 3.2.1@12

SEE ALSO:

	
	call_other(E), previous_object(E)