Q: Using Smalltalk/V-PM and IBM C Set/2

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2 total messages Started by Marten Feldtmann Fri, 24 Jul 1992 21:48

#465

Author: Marten Feldtmann
Date: Fri, 24 Jul 1992 21:48

42 lines
1430 bytes

I've some problems using IBM C Set/2 and Smalltalk-V/PM together:

 I would like to call a self-made dll-routine from Smalltalk. Well the
test-dll, shown in the second book of Digitalk works ok, but now we come
to the first own routine and nothing works:

 Therefore two questions:

 a) I would like to give a string to the dll, but how could this be
done. Float, Integers -- everything works, but how about strings:

 Code from Smalltalk:

callWithString: aString

 < api: 'TESTROUTINE' struct short >

 Code from 'C'

#include "objects.h"

...

short _Far16 _Pascal TESTROUTINE( recvr)
struct object * _Far16 recvr;
{   return recvr->header.ObjectSize;
}

 ... but with calling .....

 TestLibrary callWithString: 'Hello'   Smalltalk terminates .. :-(

 Could someone show me an example for this problem?

 b) What is the stuff about the fixed pointers found in "fixdptrs.h"?

 MF


--
Marten Feldtmann                         E-Mail: marten@tpki.toppoint.de
2300 Kiel 14,    Kieler Str. 29,   Tel.: 0431-731916,   FAX: 0431-737677

Re: Q: Using Smalltalk/V-PM and IBM C Set/2

#501

Author: dave
Date: Mon, 27 Jul 1992 14:49

20 lines
1191 bytes

In <712014481snx@feki.toppoint.de> Marten Feldtmann writes:
> I've some problems using IBM C Set/2 and Smalltalk-V/PM together:
>   Code from 'C'
> short _Far16 _Pascal TESTROUTINE( recvr)
> struct object * _Far16 recvr;
> {   return recvr->header.ObjectSize;
> }

That  _Far16 recvr  should probably be  _Seg16 recvr .  And just for
good measure, try writing your prototype as ANSI-style, rather than K&R-
style:

  short _Far16 _Pascal TESTROUTINE( struct object * _Seg16 recvr ) { }

dave

-------------------------------------------------------------------------
Dave Mooney                                              dmm@vnet.ibm.com
 C Set/2 Development, IBM Canada Lab, 844 Don Mills Rd, Toronto, Ontario
            "If you've got a blacklist, I want to be on it"

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