Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 8/7/84; site ucbvax.ARPA
Path: utzoo!watmath!clyde!burl!ulysses!ucbvax!anton
From: anton@ucbvax.ARPA (Jeff Anton)
Newsgroups: net.lang.c
Subject: Re: String copy idiom.
Message-ID: <5451@ucbvax.ARPA>
Date: Tue, 12-Mar-85 12:18:26 EST
Article-I.D.: ucbvax.5451
Posted: Tue Mar 12 12:18:26 1985
Date-Received: Wed, 13-Mar-85 01:15:25 EST
References: <7042@watdaisy.UUCP> <7044@watdaisy.UUCP>
Reply-To: anton@ucbvax.UUCP (Jeff anton)
Distribution: net
Organization: University of California at Berkeley
Lines: 19
Summary: 

Daniel J. Salomon writes:
>The VAX 4.2 BSD UNIX library routine 'strcpy' uses code equivalent
>to the less efficient sequence:  while (*s++ = *t++);
>Perhaps it should be changed.
>In the mean time, if your application does a great deal of
>string copying, and you are want to minimize execution time,
>you should write your own string copy routine.

I believe you are mistaken.  The 4.2BSD VAX strcpy is an assembly routine
that uses the VAX instruction movc3.  Perhaps, your library was built
improperly or you defined a new strcpy routine.  If you looked at source
code you must be carefull since routines in assembly often have C counter
parts to be used if the assembly is suspect.
-- 
C knows no bounds.
					Jeff Anton
					U.C.Berkeley
					ucbvax!anton
					anton@berkeley.ARPA