[ILUG] C string concat question revisited

[Dave Neary]

Conor Daly wrote:
> 
> On Wed, Jul 04, 2001 at 10:16:47AM +0100 or so it is rumoured hereabouts,
> Dave Neary thought:
> > Conor Daly wrote:
> > >
> > > >   if (my_buf)
> > > >   {
> > > >     char *tmp = realloc(my_buf, strlen(my_buf) +
> > > >                         strlen(next_string) + 1);
> 
> The only question left here is:
> 
> Does 'tmp = realloc(my_buf,<size>);' free the block pointed to by my_buf
> while returning the address of the new block into tmp?

Yes, if the call succeeds. That's he point of realloc. If the call
fails, my_buf is unmodified.

Cheers,
Dave.

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