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std::geometric_distribution< _IntType, _RealType >(3cxx) std::geometric_distribution< _IntType, _RealType >(3cxx)

NAME

std::geometric_distribution< _IntType, _RealType > -

SYNOPSIS

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)"
 

Detailed Description

 

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.

Member Function Documentation

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.

Friends And Related Function Documentation

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:
__os An output stream.
 
__x A geometric_distribution random number distribution.
Returns:
The output stream with the state of __x inserted or in an error state.
 

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:
__is An input stream.
 
__x A geometric_distribution random number generator engine.
Returns:
The input stream with __x extracted or in an error state.
 
Definition at line 1835 of file tr1_impl/random.
 

Author

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Thu Aug 2 2012 libstdc++