Is there a call that can be made from within a function to determine how many arguments have been passed to it? I feel such a call would be of great assistance when used in conjunction with variable length argument lists. In the "old days", VMS pushed a parameter count as part of the call frame. You could even determine which variables were null, since they always did call by reference and null parameters were indicated by a zero address.
Sorry if this is well known, or an invalid request for some reason. thanks don -- ------------------------------------------------------------------- | Don Fisher dfisher@xxxxxxxxxxxxxx | | Steward Observatory | | 933 N. Cherry Ave. VOICE: (520)621-7647 | | University of Arizona FAX: (520)621-9843 | | Tucson, AZ 85721 | -------------------------------------------------------------------