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From: jfjr@mitre-bedford.ARPA (Jerome Freedman)
Newsgroups: comp.lang.c
Subject: RE: What can I get away with
Message-ID: <8190@linus.UUCP>
Date: Tue, 30-Jun-87 14:51:44 EDT
Article-I.D.: linus.8190
Posted: Tue Jun 30 14:51:44 1987
Date-Received: Wed, 1-Jul-87 06:47:26 EDT
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Reply-To: jfjr@mbunix (Freedman)
Organization: The MITRE Corporation, Bedford, Mass.
Lines: 25

Suppose I declare an array of pointers to functions in one module.
I write a function, in the same module, which will install functions
in this array -call the function "install".

In a different module I write a function, call it "new_function".
I make NO attempt at making "new_function" visible anywhere outside
of the module in which it is written. I call install on this
new_function to put it in my array. If there is an objection to
passing function pointers to functions then I make these function
pointers a component of a structure. Can I then go through this
array of function pointers (or structures containing function
pointers) and call the functions pointed to even if they are not
declared externally (to avoid further confusion all these functions
have no parameters and they return void). What can I get away
with staying within C, what can I get away with without breaking
something?

                                    Jerry Freedman,Jr
                                    jfjr@mitre-bedford.ARPA



Jerry Freedman, Jr       "If at first you don't succeed, lower your standards"
jfjr@mitre-bedford.arpa
(617)271-6248 or 7555