[ILUG] C string concat question ??

[Dave Neary]

kevin lyda wrote:
> 
> On Wed, May 02, 2001 at 09:52:40PM +0100, Dave Neary wrote:
> > And my first instinct...
> > strcat(msg=strdup(strvar1),strvar2);
> 
> actually the order of evaluation isn't the problem.  you haven't allocated
> enough space for strvar2.

Yes, this too is an issue :) It had already been pointed out elsewhere,
though. But to be a pedant....
strcat((msg=strdup(strvar1),realloc(msg,strlen(msg)+strlen(strvar2)+1)==NULL?bad_stuff():1),strvar2);
still doesn't work because we can't be guaranteed in which order the
arguments will evaluate :)

Cheers,
Dave.

-- 
David Neary,               E-Mail dave.neary at palamon.ie
Palamon Technologies Ltd.  Phone +353-1-634-5059