Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!decwrl!shelby!portia!jessica.Stanford.EDU!rick
From: rick@jessica.Stanford.EDU (Rick Wong)
Newsgroups: comp.sys.mac.programmer
Subject: MacApp and THINK Pascal 3.0
Keywords: MacApp, THINK Pascal
Message-ID: <10137@portia.Stanford.EDU>
Date: 13 Mar 90 23:07:29 GMT
Sender: USENET News System <news@portia.stanford.edu>
Reply-To: rick@jessica.Stanford.EDU (Rick Wong)
Organization: Stanford University
Lines: 42

Some of the features I've seen mentioned about the new version of THINK
Pascal make it sound extremely attractive for MacApp development.  I've
still, however, got a few questions:

    1.  Does it REALLY allow jump tables larger than 32K (4091 entries)?
        I've been kludging around this problem for well over a year, now
        -- it's nice to see SOMEONE finally addressing it.

    2.  Can I call routines written in other languages (i.e., C, Assembler)
        from THINK Pascal?  In particular, does THINK Pascal have a "C"
        directive so I can call functions that obey C calling conventions?
        I don't mind if the functions have to be previously compiled (by
        MPW) into .o files.

    3.  Can I call THINK Pascal methods from other languages?  In MPW
        Assembler, for instance, I can directly call a particular method
        belonging to a particular class by saying something like:

		jmp TObject_Free

        In MPW Assembler, I think it's also possible to say something like
        "jmp TObject$Free" to let the method dispatcher figure out which
        subclass should handle the call.

    4.  How is segmentation handled?  Does THINK Pascal handle segmentation
        directives in .o files?  How about $S directives in MPW Pascal
        source files?

    5.  Are MPW Pascal's other compiler directives supported?  I'm most
        concerned about the conditional compilation ($ifc, $elsec, $endc)
        and "handle warning" directives ($h-, $h+, $push, $pop).

    6.  Does 3.0 have better resource-handling tools than RMaker, or will
        I have to use MPW's Rez and Derez?

I'd greatly appreciate any further information about MacApp and THINK Pascal
3.0.

Thanks,

Rick Wong
rick@jessica.stanford.edu