Public Types¶

typedef _RealType input_type
typedef _IntType result_type

Public Member Functions¶

geometric_distribution (const _RealType &__p=_RealType(0.5))
template<class _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator &__urng)
_RealType p () const
void reset ()

Friends¶

template<typename _IntType1 , typename _RealType1 , typename _CharT , typename _Traits > std::basic_ostream< _CharT, _Traits > & operator<< (std::basic_ostream< _CharT, _Traits > &__os, const geometric_distribution< _IntType1, _RealType1 > &__x)
template<typename _CharT , typename _Traits > std::basic_istream< _CharT, _Traits > & operator>> (std::basic_istream< _CharT, _Traits > &__is, geometric_distribution &__x)

template<typename _IntType = int, typename _RealType = double> class std::geometric_distribution< _IntType, _RealType >¶

A discrete geometric random number distribution.

The formula for the geometric probability mass function is $ p(i) = (1 - p)p^{i-1} $ where $ p $ is the parameter of the distribution.

Definition at line 1778 of file tr1_impl/random.

template<typename _IntType = int, typename _RealType = double> _RealType std::geometric_distribution< _IntType, _RealType >::p () const [inline] Gets the distribution parameter p.¶

Definition at line 1798 of file tr1_impl/random.

template<typename _IntType = int, typename _RealType = double> template<typename _IntType1 , typename _RealType1 , typename _CharT , typename _Traits > std::basic_ostream<_CharT, _Traits>& operator<< (std::basic_ostream< _CharT, _Traits > & __os, const geometric_distribution< _IntType1, _RealType1 > & __x) [friend] Inserts a geometric_distribution random number distribution __x into the output stream __os.¶

Parameters:

Returns:

template<typename _IntType = int, typename _RealType = double> template<typename _CharT , typename _Traits > std::basic_istream<_CharT, _Traits>& operator>> (std::basic_istream< _CharT, _Traits > & __is, geometric_distribution< _IntType, _RealType > & __x) [friend] Extracts a geometric_distribution random number distribution __x from the input stream __is.¶

Parameters:

Returns:

Definition at line 1835 of file tr1_impl/random.