26 Numerics library [numerics]

A negative_binomial_distribution random number distribution produces random integers i ≥ 0 distributed according to the discrete probability function P(i | k,p) = k+i-1 i · p^k · (1-p)ⁱ .

template<class IntType = int>
 class negative_binomial_distribution{
public:
 // types
 typedef IntType  result_type;
 typedef unspecified param_type;

 // constructor and reset functions
 explicit negative_binomial_distribution(IntType k = 1, double p = 0.5);
 explicit negative_binomial_distribution(const param_type& parm);
 void reset();

 // generating functions
 template<class URNG>
   result_type operator()(URNG& g);
 template<class URNG>
   result_type operator()(URNG& g, const param_type& parm);

 // property functions
 IntType k() const;
 double p() const;
 param_type param() const;
 void param(const param_type& parm);
 result_type min() const;
 result_type max() const;
};

explicit negative_binomial_distribution(IntType k = 1, double p = 0.5);