Fwd: Re: deleting null pointer arrays (was: Re: extragear/network/ktorrent)

[Alexander Neundorf]

On Friday 16 January 2009, Adriaan de Groot wrote:
> As one of the dudes using the Sun C compiler the most on KDE code (and
> incidentally defining which versions are considered suitable for use), I'll
> chime in here.
>
> On Friday 16 January 2009 01:49:25 Michael Pyne wrote:
> > On Thursday 15 January 2009, Dominik Haumann wrote:
> > > according to [1] this change is wrong:
> > > >>         BitSet & BitSet::operator = (const BitSet & bs)
> > > >>         {
> > > >> -               if (data)
> > > >> -                       delete [] data;
> > > >> +               delete [] data
> >
> > The way delete [] works is that the size of the array is embedded
> > somewhere in the array to be deleted (handled by the corresponding
> > new[]).  delete[] uses this information to free the array appropriately.
> >
> > Apparently the "recent Solaris compiler" does not check for 0 before
> > trying to find the hidden array length.
>
> Might be. I'd have to know more from the OP about what version exactly that
> recent compiler is; Ceres (StudioExpress) is considered experimental; Mars
> 124864-03 is slightly too old (but is what I'm using on my own laptop) and
> -08 is approved.

If you find out, I think it would be good if it was explicictely named on that 
wiki page.

Alex