Article View: comp.sys.amiga.tech
Article #3222Re: What's an APTR, BPTR?
From: Valentin Pepelea
Date: Mon, 09 Apr 1990 14:03
Date: Mon, 09 Apr 1990 14:03
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1652 bytes
In article <3421@newton.physics.purdue.edu> murphy@newton.physics.purdue.edu.UUCP (William J. Murphy) writes:
>
>I would have to assume that APTR = Amiga Pointer = 32bit pointer?
Correct.
>BPTR = BCPL pointer = long-word aligned pointer.
Way back when the evil language BCPL was invented, computers had no more than
64K of addressing space. The BCPL language allowed the illusion of working with
a contiguous 256K by using pointers that were shifted right by two bits.
Thus a pointer to address 1024 would be represented as a 256 in BCPL.
>I have tries this where I have made printbuffer = (APTR)"Let the printer type
>this" instead of trying to assign/cast the pointer to the beginning of
>the character buffer. It worked.
Try putting a printf("%s",buffer); right after the scanf() call to see whether
you are obtaining what you want from scanf().
Valentin
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!cbmvax!valentin From: valentin@cbmvax.commodore.com (Valentin Pepelea) Newsgroups: comp.sys.amiga.tech Subject: Re: What's an APTR, BPTR? Message-ID: <10712@cbmvax.commodore.com> Date: 9 Apr 90 14:03:26 GMT References: <3421@newton.physics.purdue.edu> Reply-To: valentin@cbmvax (Valentin Pepelea) Distribution: comp.amiga.tech Organization: Commodore, West Chester, PA Lines: 26