Re: [Boost-users] Mersenne twister problem

Subject: Re: [Boost-users] Mersenne twister problem
From: ruya (rmlopes_at_[hidden])
Date: 2009-09-15 04:50:41

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<base_generator_type&,
boost::uniform_real<> > GeneratorI;
    typedef Private<MemP::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<base_generator_type&,
>> boost::uniform_real<> > GeneratorI;
> 
> 
> Another question: what does the destructor of your class look like?  
> Can you send the full class?
> 
> Matthias
> 
> _______________________________________________
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> Boost-users_at_[hidden]
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> 
> 

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