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From: joe@dayton.UUCP (Joseph P. Larson)
Newsgroups: comp.lang.fortran
Subject: Re: Can a subroutine find the name of the calling routine?
Message-ID: <702@dayton.UUCP>
Date: Fri, 1-May-87 09:13:26 EDT
Article-I.D.: dayton.702
Posted: Fri May  1 09:13:26 1987
Date-Received: Sun, 3-May-87 01:52:16 EDT
References: <13160003@acf4.UUCP>
Reply-To: joe@dayton.UUCP (Joseph P. Larson)
Organization: Dayton-Hudson Dept. Store Co.
Lines: 24

In article <13160003@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?


This kind of thing is compiler- (and perhaps machine-) dependant.
DEC FORTRAN won't tell you, for instance.  I suspect most compilers
won't give you the name of the function or subroutine for the simple
reason that this means it would also have to keep this info in a
table.  If you then strip the program (an obvious UNIX term), your
program is unlikely to work anymore.

As for the number of arguments -- that's going to be dependent on
your machine and compiler, as well.  If you can't find the info,
you might be able to write an assembly-language routine that will
look at the info on the stack -- what you are looking for just might
be there.
-- 
UUCP: rutgers!dayton!joe                Dayton Hudson Department Store Company
ATT : (612) 375-3537                    Joe Larson/MIS 1060
(standard disclaimer...)                700 on the Mall      Mpls, Mn. 55408