Re: [GiNaC-list] hash tables and sets

12 Oct 2006


      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/>