FreeTDS Development Group

[Michael Peppler <mpeppler AT peppler.org>]

On Tue, 2002-12-31 at 14:34, James K. Lowden wrote:
> I often see code like this:
> 
>       CS_VOID * buffer;
>       CS_INT int_val;
>       memcpy(buffer, &int_val, sizeof(CS_INT));
> 
> I wouldn't use memcpy().  I would cast it:
> 
>       *(CS_INT*) buffer = int_val;
> 
> Is there some reason not to do that?  Surely my code is easier to
> understand and requires fewer instructions.  

I've used both. I think the latter is potentially open to memory
alignment problems (and a good C compiler might actually optimize away
the call to memcpy()).

Michael
-- 
Michael Peppler                              Data Migrations, Inc.
mpeppler AT peppler.org                 http://www.mbay.net/~mpeppler
Sybase T-SQL/OpenClient/OpenServer/C/Perl developer available for short or 
long term contract positions - http://www.mbay.net/~mpeppler/resume.html

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