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Subject: Re: Optimizing C code for speed

Author: Ed Schröder

Date: 23:40:46 01/01/03

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On January 01, 2003 at 11:50:58, Lieven Clarisse wrote:

>I was wondering if there is a good book about how to write efficient C code. I
>am not talking about algorithms, but the way *how* to write things, eg

http://www.agner.org/assem/

Get this book: http://www.accu.org/bookreviews/public/reviews/z/z001445.htm

Ed


>which is faster :
>do {}  while()    or     while () {}
>
>-------
>I know for instance that:
>
>ptr=&R[i];
>if((*ptr==3)||(*ptr==7)) {;}
>
>is faster then:
>
>if((R[i]==3)||(R[i]==7)) {;}
>
>Is there a good book that reviews all those kinds of tricks?
>
>regards,
>
>Lieven



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