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std::geometric_distribution.3cxx
Langue: en
Version: 299385 (debian - 07/07/09)
Section: 3 (Bibliothèques de fonctions)
Sommaire
- NAME
- SYNOPSIS
- Detailed Description
- Member Function Documentation
- 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]
- 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]
- Author
NAME
std::geometric_distribution - A discrete geometric random number distribution.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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