From: Andreas Ericsson <ae@op5.se>
Date: Thu, 09 Mar 2006 11:39:58 GMT
Subject: Re: [PATCH] Add git-imap-send.
Message-ID: <4410140E.2000609@op5.se>
In-Reply-To: <Pine.LNX.4.63.0603091227560.20277@wbgn013.biozentrum.uni-wuerzburg.de>

Johannes Schindelin wrote:
> Hi,
> 
> On Thu, 9 Mar 2006, Junio C Hamano wrote:
> 
> 
>>Mike McCormack <mike@codeweavers.com> writes:
>>
>>
>>>+		if (!memcmp( "imaps:", val, 6 )) {
>>>+			if (!memcmp( "imap:", val, 5 ))
>>
>>Is val always longer than 5 or 6 bytes here?
> 
> 
> That does not matter, since they are strings, and the memcmp should not 
> look further if they are shorter (because the comparison to '\0' failed 
> already).
> 

That's what strcmp() does. memcmp() walks the lenghth even if it 
encounters nul bytes. Perhaps you confuse it with strncmp()?


> However, if !memcmp("imaps:", val, 6), it means that val starts with 
> the string "imaps:", right? Then !memcmp("imap:", val, 5) must always 
> fail, no?
> 

Yes. Recent gcc's will recognize it as dead code and remove it. It's 
still ugly though.

-- 
Andreas Ericsson                   andreas.ericsson@op5.se
OP5 AB                             www.op5.se
Tel: +46 8-230225                  Fax: +46 8-230231