Re: A89: Clearing a string

To: assembly-89@lists.ticalc.org
Subject: Re: A89: Clearing a string
From: Robin Kirkman <misty@drrobin.yi.org>
Date: Mon, 03 Jul 2000 16:52:32 -0400
References: <20000703204157.B5FF5A4013@towerguard.edu.sollentuna.se>
Reply-To: assembly-89@lists.ticalc.org


eck.. ollie's works fine

*(str++)=0;

that sets the value *str to 0, then increments str
while(*str) *(str++)=0;
while the value at str is not zero, set the value to zero and increment str



ComAsYuAre@aol.com wrote:
> 
> I don't think yours will actually work though--it won't clear the first char.  Rather, use:
> 
> for(int i=0; str[i]; str[i++]=0);
> 
> If you post-increment i in the conditional, it will test before the first loop and thus skip str[0] in the clearing code.  Incrementing in the "increment" piece of the for loop generally works better =P
> 
> In a message dated Mon, 3 Jul 2000  4:10:02 PM Eastern Daylight Time, Olle Hedman <oh@hem.passagen.se> writes:
> 
> <<
> just don't forget to save the stringpointer if you want to use the string
> variable again :)
> 
> //Olle
> 
> ComAsYuAre@aol.com wrote:
> > Or if we're going REALLY trying to shorten that code...
> >
> > while(*str) *str++=0;
> >
> > :-)
> 
>  >>

References:

Re: A89: Clearing a string

From: ComAsYuAre@aol.com