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Re: [PATCH] Optimize strchr (x, 0)
- From: OndÅej BÃlka <neleai at seznam dot cz>
- To: Denis Zaitceff <zaitceff at gmail dot com>
- Cc: libc-alpha at sourceware dot org
- Date: Sat, 9 Mar 2013 15:39:27 +0100
- Subject: Re: [PATCH] Optimize strchr (x, 0)
- References: <20130224104344.GA24812@domone.kolej.mff.cuni.cz><CAKMD7Dw=qCa3nZDh35Lp69Tzwsuy4gAzrRtEFS0nav1VERAxeA@mail.gmail.com>
On Sat, Mar 09, 2013 at 07:48:02PM +0600, Denis Zaitceff wrote:
> On Sun, Feb 24, 2013 at 4:43 PM, OndÅej BÃlka <neleai@seznam.cz> wrote:
> >
> > As strlen is more optimized than rawmemchr it will be more effective
> > than now. (If rawmemchr(x,0) is faster then it is performance regression of
> > strlen.)
>
> Why do you think it is more optimized?
Test it. If you find architecture where rawmemchr/strchr is faster feel
free send patch like:
size_t strlen(char *x)
{
return strchr(x,0)-x;
}