Re: libSystem.B.dylib Calling Code
Re: libSystem.B.dylib Calling Code
- Subject: Re: libSystem.B.dylib Calling Code
- From: Shawn Erickson <email@hidden>
- Date: Wed, 1 Jul 2009 16:15:29 -0700
On Wed, Jul 1, 2009 at 3:18 PM, David Blanton<email@hidden> wrote:
> Here is code that crashes. the parms coming in are checked for validity
> before ReplaceChar is called
>
> void ReplaceChar(char *s, char oldChar, char newChar)
> {
> if(newChar == oldChar)
> return;
> char *n = strchr(s, oldChar);
> while(n)
> {
> *n = newChar;
> n = strchr(n+1, oldChar);
> }
> }
Are you sure "oldChar" cannot be '\0'? If "oldChar" is '\0' then your
n+1 will put you past the end "s". Of course replacing the null
terminator with anything other then a null terminator will break the
c-stringness of the character array.
Anyway can you post a full backtrace of a crashed thread?
-Shawn
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