Re: [Boost-users] Mersenne twister problem

15 Sep 2009


      SearchFunctor has a virtual destructor, the derivees have empty destructor.
MemHandler is just a helper does not store anything.

 class SearchFunctor{
  protected:
    typedef SmartPtr<SType> SPtr;
    typedef typename SType::Domain Domain;
    typedef typename SType::DPtr DPtr;
    typedef typename Domain::MType MType;
    typedef typename Domain::MPtr MPtr;
    typedef typename Domain::EPtr EPtr;
    typedef typename Domain::RPtr RPtr;
    typedef vector<typename SType::MPtr> MVector;
    typedef typename SType::DataType DataType;
    typedef boost::mt19937 base_generator_type;
    typedef boost::variate_generator > GeneratorI;
    typedef PrivateMemP::ObjectType::_ACTIVE,MemP MemHandler;
  public:

    virtual SPtr operator()( SPtr s, int iter ) = 0;
       
    SearchFunctor(){
      memh = MemHandler();
      generator1 = base_generator_type(MASTER_SEED+13);
      uni_dist1 = boost::uniform_real<>(0,1);
      uniEmp = new GeneratorI(generator1, uni_dist1);
      generator2 = base_generator_type(MASTER_SEED+17);
      uni_dist2 = boost::uniform_real<>(0,1);
      uniRes = new GeneratorI(generator2, uni_dist2);
    }
  protected:
    virtual ~SearchFunctor(){}

    base_generator_type generator1, generator2;
    boost::uniform_real<> uni_dist1, uni_dist2;
    GeneratorI* uniEmp;
    GeneratorI* uniRes;
    MemHandler memh;
  };


Matthias Troyer-2 wrote:
...
On Sep 14, 2009, at 9:40 AM, ruya wrote:
...
Hi
Matthias Troyer-2 wrote:
...
I would write this very differently, and can give you a better  
version
that should have no problems, but could you please send me the
definition of GeneratorI first?
Sorry about that, the missing typedefs at SearchFunctor:
typedef boost::mt19937 base_generator_type;
   typedef boost::variate_generator > GeneratorI;
Another question: what does the destructor of your class look like?  
Can you send the full class?
Matthias
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