Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!ucla-cs!ucla-seas!JAMES@wiffin.chem.ucla.edu
From: james@abby.chem.ucla.edu (James Wilkinson)
Newsgroups: comp.lang.pascal
Subject: Re: Need to call a large C procedure from Pascal.....
Message-ID: <00932E03.239F79E0@wiffin.chem.ucla.edu>
Date: 26 Feb 90 14:27:39 GMT
References: <4673@jarthur.Claremont.EDU>
Sender: news@SEAS.UCLA.EDU
Reply-To: james@abby.chem.ucla.edu (James Wilkinson)
Organization: Department of Chemistry, UCLA
Lines: 19

> I need a bit of help.  I have a main program written in Pascal, and
> I have a large (20,000 line) C procedure that I would like to call
> from the main program, instead of re-writing a similar procedure in
> Pascal.

This should be easy to do on the VAX.  Compile the C program as a module (ie.,
no main section), define the appropriate external routines in the pascal
program, call them, and you are happy.  You didn't say whether or not you want
to call the C code as a whole (which would mean you would need to make the C
code callable as a whole), so I'm assuming you only want to call subroutines
from the C code.  I know there are people at HMC that do this all the time.

JaW

James Wilkinson                            Phone: 1-213-206-5104
Department of Chemistry and Biochemistry     FAX: 1-213-206-5381
University of California, Los Angeles     BITNET: JAMES@UCLACH
405 Hilgard Avenue                      Internet: JAMES@ABBY.CHEM.UCLA.EDU
Los Angeles, California  90024-1569         SPAN: ABBY::JAMES or 5882::JAMES