std_discrete_distribution.3cxx

Langue: en

Version: 339270 (ubuntu - 24/10/10)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

std::discrete_distribution -

A discrete_distribution random number distribution.

SYNOPSIS


Classes


struct param_type

Public Types


typedef _IntType result_type

Public Member Functions


template<typename _InputIterator > discrete_distribution (_InputIterator __wbegin, _InputIterator __wend)

template<typename _Func > discrete_distribution (size_t __nw, double __xmin, double __xmax, _Func __fw)

discrete_distribution (const param_type &__p)

discrete_distribution (initializer_list< double > __wl)

result_type max () const

result_type min () const

template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator &__urng, const param_type &__p)

template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator &__urng)

void param (const param_type &__param)

param_type param () const

std::vector< double > probabilities () const

void reset ()

Friends


template<typename _IntType1 , typename _CharT , typename _Traits > std::basic_ostream< _CharT, _Traits > & operator<< (std::basic_ostream< _CharT, _Traits > &, const std::discrete_distribution< _IntType1 > &)

template<typename _IntType1 , typename _CharT , typename _Traits > std::basic_istream< _CharT, _Traits > & operator>> (std::basic_istream< _CharT, _Traits > &, std::discrete_distribution< _IntType1 > &)

Detailed Description

template<typename _IntType = int> class std::discrete_distribution< _IntType >

A discrete_distribution random number distribution.

The formula for the discrete probability mass function is

Definition at line 4682 of file random.h.

Member Typedef Documentation

template<typename _IntType = int> typedef _IntType std::discrete_distribution< _IntType >::result_typeThe type of the range of the distribution.

Definition at line 4689 of file random.h.

Member Function Documentation

template<typename _IntType = int> result_type std::discrete_distribution< _IntType >::max () const [inline]

Returns the least upper bound value of the distribution.

Definition at line 4795 of file random.h.

References std::vector< _Tp, _Alloc >::size().

template<typename _IntType = int> result_type std::discrete_distribution< _IntType >::min () const [inline]

Returns the greatest lower bound value of the distribution.

Definition at line 4788 of file random.h.

template<typename _IntType = int> template<typename _UniformRandomNumberGenerator > result_type std::discrete_distribution< _IntType >::operator() (_UniformRandomNumberGenerator & __urng) [inline]

Generating functions.

Definition at line 4803 of file random.h.

References std::discrete_distribution< _IntType >::operator()(), and std::discrete_distribution< _IntType >::param().

Referenced by std::discrete_distribution< _IntType >::operator()().

template<typename _IntType = int> void std::discrete_distribution< _IntType >::param (const param_type & __param) [inline]

Sets the parameter set of the distribution. Parameters:

__param The new parameter set of the distribution.

Definition at line 4781 of file random.h.

template<typename _IntType = int> param_type std::discrete_distribution< _IntType >::param () const [inline]

Returns the parameter set of the distribution.

Definition at line 4773 of file random.h.

Referenced by std::discrete_distribution< _IntType >::operator()(), and std::operator==().

template<typename _IntType = int> std::vector<double> std::discrete_distribution< _IntType >::probabilities () const [inline]

Returns the probabilities of the distribution.

Definition at line 4766 of file random.h.

template<typename _IntType = int> void std::discrete_distribution< _IntType >::reset () [inline]

Resets the distribution state.

Definition at line 4759 of file random.h.

template<typename _IntType = int> template<typename _IntType1 , typename _CharT , typename _Traits > std::basic_ostream<_CharT, _Traits>& operator<< (std::basic_ostream< _CharT, _Traits > &, const std::discrete_distribution< _IntType1 > &) [friend]

Inserts a discrete_distribution random number distribution __x into the output stream __os. Parameters:

__os An output stream.
__x A discrete_distribution random number distribution.

Returns:

The output stream with the state of __x inserted or in an error state.

template<typename _IntType = int> template<typename _IntType1 , typename _CharT , typename _Traits > std::basic_istream<_CharT, _Traits>& operator>> (std::basic_istream< _CharT, _Traits > &, std::discrete_distribution< _IntType1 > &) [friend]

Extracts a discrete_distribution random number distribution __x from the input stream __is. Parameters:

__is An input stream.
__x A discrete_distribution random number generator engine.

Returns:

The input stream with __x extracted or in an error state.

Author

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