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Article #125

Re: Function Prototypes: Don't they force casts?

#125
From: John F Carr
Date: Sun, 26 Jul 1992 21:38
12 lines
1041 bytes
In article <24914@dog.ee.lbl.gov> torek@horse.ee.lbl.gov (Chris Torek) writes:
>... will fail on machines on which function pointers
>appear negative after conversion to int.  (I have a fuzzy memory that
>suggests this may have been the case on some Elxsi machine, for
>instance.)

On a VAX or MIPS, a pointer to a function in the kernel will convert
to a negative integer.  I think Sun OS on a SPARC maps some code at
high addresses (0xff??????) which appear negative.

--
    John Carr (jfc@athena.mit.edu)
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Message-ID: <1992Jul26.213827.23969@athena.mit.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!bloom-beacon!bloom-picayune.mit.edu!athena.mit.edu!jfc
References: <OINK.92Jul26032212@julian.newshost.uwo.ca> <24914@dog.ee.lbl.gov>

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Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!bloom-beacon!bloom-picayune.mit.edu!athena.mit.edu!jfc
From: jfc@athena.mit.edu (John F Carr)
Subject: Re: Function Prototypes: Don't they force casts?
Message-ID: <1992Jul26.213827.23969@athena.mit.edu>
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Organization: Massachusetts Institute of Technology
References: <OINK.92Jul26032212@julian.newshost.uwo.ca> <24914@dog.ee.lbl.gov>
Date: Sun, 26 Jul 1992 21:38:27 GMT
Lines: 12