[GiNaC-list] hash tables and sets

[Richard B. Kreckel]

Marko Riedel wrote:

>Richard B. Kreckel writes:
> > I suppose that should work (I haven't actually tested it):
> > 
> >     typedef std::set<GiNaC::ex, GiNaC::ex_is_less> myset;  // shorthand
> >     myset* inst;
> >     inst = (myset*)malloc(sizeof(myset));  // or get inst from elsewhere
> >     new(inst) myset;
> >     // do stuff to *inst here...
> >     inst->~myset();
> >     delete inst;
> > 
>
>Okay, one last remark: the malloc should be matched up with a free,
>right? Giving the sequence
>
>   inst = (myset*)malloc(sizeof(myset));  // or get inst from elsewhere 
>   new(inst) myset; 
>   // do stuff to *inst here... 
>   inst->~myset(); 
>   free(inst);
>

Yes. The example I gave was in error.

-richy.

-- 
Richard B. Kreckel
<http://www.ginac.de/~kreckel/>