Path: utzoo!utgpu!cs.utexas.edu!uwm.edu!csd4.csd.uwm.edu!markh
From: markh@csd4.csd.uwm.edu (Mark William Hopkins)
Newsgroups: alt.sources
Subject: Re: Fast strcmp() wanted.
Message-ID: <6757@uwm.edu>
Date: 4 Oct 90 06:01:08 GMT
References: <12145@crdgw1.crd.ge.com>
Sender: news@uwm.edu
Reply-To: markh@csd4.csd.uwm.edu (Mark William Hopkins)
Organization: University of Wisconsin-Milwaukee
Lines: 13

In article <12145@crdgw1.crd.ge.com> larocque@jupiter.crd.ge.com (David M. LaRocque) writes:
>After I profiled my C program I discovered that the function
>strcmp() takes one third of my program's CPU time.  I was hoping
>someone may have written their own version of strcmp() that
>outperforms the library's function.

Look at some references on the architecture of the machine your system is
running on.  It will most likely have hardware-implemented string instructions
that you can use.

On our machine, the strcmp library routine is really nothing more than a single
assembly-language instruction with a couple register-initializations.  It will
almost certainly run far faster than any equivalent high-level source.