26 Numerics library [numerics]

A uniform_int_distribution random number distribution produces random integers i, a ≤ i ≤ b , distributed according to the constant discrete probability function P(i | a,b) = 1 / (b - a + 1) .

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

 // constructors and reset functions
 explicit uniform_int_distribution(IntType a = 0, IntType b = numeric_limits<IntType>::max());
 explicit uniform_int_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
 result_type a() const;
 result_type b() const;
 param_type param() const;
 void param(const param_type& parm);
 result_type min() const;
 result_type max() const;
};

explicit uniform_int_distribution(IntType a = 0, IntType b = numeric_limits<IntType>::max());

A uniform_real_distribution random number distribution produces random numbers x, a ≤ x < b , distributed according to the constant probability density function p(x | a,b) = 1 / (b - a) .

template<class RealType = double>
 class uniform_real_distribution{
public:
 // types
 typedef RealType result_type;
 typedef unspecified param_type;

 // constructors and reset functions
 explicit uniform_real_distribution(RealType a = 0.0, RealType b = 1.0);
 explicit uniform_real_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
 result_type a() const;
 result_type b() const;
 param_type param() const;
 void param(const param_type& parm);
 result_type min() const;
 result_type max() const;
};

explicit uniform_real_distribution(RealType a = 0.0, RealType b = 1.0);