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Article #838Re: hiding lint's ravings (was Re: FAQ - malloc array - clarify)
From: Rich Salz
Date: Tue, 11 Sep 1990 18:11
Date: Tue, 11 Sep 1990 18:11
27 lines
1597 bytes
1597 bytes
In <8086@helios.TAMU.EDU> jdm5548@diamond.tamu.edu (James Darrell McCauley) writes:
[ Summary:
extern char *malloc();
double **dpp = (double **)malloc((unsigned int)n * sizeof (double*));
causes lint to complain "possible pointer alignment problem". ]
Some people said ignore it, but James replied:
>Well, I can just ignore warnings like this, but those who review
>my code (professors, employers, clients) are not likely to.
Then, simply put, they are not competent to review your code.
If you need a better solution, you can often fool lint by writing your own
malloc function that returns something with worst-case alignment. For example:
#define NEW(type, count) xmalloc(count * sizeof (type))
typedef double *ALIGN;
ALIGN
xmalloc(i) int i; {
ALIGN p = (ALIGN)malloc((unsigned int)i);
if (p == NULL) FatalError("no memory");
return p;
}
double **dpp = NEW(double*, n);
--
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<8056@helios.TAMU.EDU> <1990Sep08.022034.8444@virtech.uucp> <8086@helios.TAMU.EDU>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!julius.cs.uiuc.edu!apple!bbn.com!papaya.bbn.com!rsalz From: rsalz@bbn.com (Rich Salz) Newsgroups: comp.unix.programmer Subject: Re: hiding lint's ravings (was Re: FAQ - malloc array - clarify) Keywords: malloc, Sun, lint Message-ID: <2830@litchi.bbn.com> Date: 11 Sep 90 18:11:47 GMT References: <8056@helios.TAMU.EDU> <1990Sep08.022034.8444@virtech.uucp> <8086@helios.TAMU.EDU> Organization: BBN Systems and Technology, Inc. Lines: 27