Re: 2.6.19: slight performance optimization for lib/string.c's strstrip()

[Amit Choudhary <amit2030@yahoo.com>]

> How about this:
> 
> char *strstrip(char *s)
> {
>         size_t less = 0;
>         char c = 0;
>         char *e = NULL;
> 
>         while ((c=*s) && isspace(c))
>                 s++;
>         if (!c)
>                 return s;
> 
>         e = s;
> 
>         while (c=*e) {
>                  less = isspace(c) ? (less + 1) : 0;
>                  e++;
>         }
> 
>         *(e-less) = 0;
> 
>         return s;
> }
> 

Well, this is not very efficient because it ends up calling isspace() function for all characters.
So, Ulrich's algo is the fastest.

-Amit


 
____________________________________________________________________________________
Yahoo! Music Unlimited
Access over 1 million songs.
http://music.yahoo.com/unlimited
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/