Path: utzoo!attcan!uunet!cs.utexas.edu!csd4.milw.wisc.edu!mailrus!ulowell!hawk!jkeegan
From: jkeegan@hawk.ulowell.edu (Jeff Keegan)
Newsgroups: comp.sys.mac.programmer
Subject: MPW C <-> Lightspeed C header files
Message-ID: <14107@swan.ulowell.edu>
Date: 9 Jul 89 15:31:09 GMT
Sender: news@swan.ulowell.edu
Reply-To: jkeegan@hawk.ulowell.edu (Jeff Keegan)
Organization: University of Lowell, CS Dept
Lines: 54


I'm using Lightspeed C (3.01) on a MacIIx. I'm trying to convert a MPW C
header file so I can use it in Lightspeed C. I want to know how to declare
a pascal PROCEDURE (a function that doesn't return a value) in Lightspeed C.

In the MPW header file, it says something like

	typedef pascal void (*MyProc) (
            int argument1;
            char argument2;  /* etc.. these are made up */
            Ptr argument3);

  Trying to precompile this from Lightspeed C gives me "invalid storage class".

What *I* interpretted the error to mean was that there wasn't a pascal type
"void" in Lightspeed Pascal (a guess, assuming that either there WAS a void
type in MPW Pascal, or it was a special case of the C compiler to look for
void in a pascal declaration).

Also, I've noticed that in Lightspeed C you don't give paramater lists at
that point. I've tried using

        typedef pascal void (*MyProc) ()

also, and it still doesn't work.. 

Another example was this :  The MPW code said

        typedef void (*MyOtherProc) (struct MyStruct *thestruct)

This said "paramater list is inappropriate here" in Lightspeed C so I
replaced it with

	typedef void (*MyOtherProc) ()

which seems to work.

Questions :
	1) Am I correct in my change for that second example (the typedef
	   for MyOtherProc)?

	2) How do I interpret or translate the first one?

Thanks for your help in advance..

..Jeff Keegan

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| Jeff Keegan                | I clutch the wire fence until my fingers bleed |
| jkeegan@hawk.ulowell.edu   | A wound that will not heal                     |
|----------------------------| A heart that cannot feel                       |
| This space intentionally   | Hoping that the horror will receed             |
| left blank                 | Hoping that tomorrow we'll all be freed  -RUSH |
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