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From: gwyn@brl-smoke.UUCP
Newsgroups: comp.lang.c
Subject: Re: Can a subfunction find the name of the calling function?
Message-ID: <5818@brl-smoke.ARPA>
Date: Thu, 30-Apr-87 20:11:33 EDT
Article-I.D.: brl-smok.5818
Posted: Thu Apr 30 20:11:33 1987
Date-Received: Sat, 2-May-87 01:36:20 EDT
References: <12620001@acf4.UUCP>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 17

In article <12620001@acf4.UUCP> woo@acf4.UUCP (Alex C. Woo) writes:
>Is there anything comparable to getarg and iargc for subroutines
>or functions?  How can a function determine the name of the function
>which calls it or the number of calling arguments, either in C
>or f77?

Since none of the source code symbols are necessarily around
at run time, in general the names of functions are not available
at run time.

There is no built-in way to determine number of arguments, either.
Once upon a time there was a nargs() function for this, but it
really just returned the parameter stack size in words, not the
number of arguments (which is harder).  I don't know what good
either one would do in the general case.

The bottom line is, "no, you can't do that, at least not portably".