std::discrete_distribution - Man Page

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)
discrete_distribution (const param_type &__p)
discrete_distribution (initializer_list< double > __wl)
template<typename _Func > discrete_distribution (size_t __nw, double __xmin, double __xmax, _Func __fw)
template<typename _ForwardIterator , typename _UniformRandomNumberGenerator > void __generate (_ForwardIterator __f, _ForwardIterator __t, _UniformRandomNumberGenerator &__urng)
template<typename _ForwardIterator , typename _UniformRandomNumberGenerator > void __generate (_ForwardIterator __f, _ForwardIterator __t, _UniformRandomNumberGenerator &__urng, const param_type &__p)
template<typename _UniformRandomNumberGenerator > void __generate (result_type *__f, result_type *__t, _UniformRandomNumberGenerator &__urng, const param_type &__p)
result_type max () const
Returns the least upper bound value of the distribution.
result_type min () const
Returns the greatest lower bound value of the distribution.
template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator &__urng)
Generating functions.
template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator &__urng, const param_type &__p)
param_type param () const
Returns the parameter set of the distribution.
void param (const param_type &__param)
Sets the parameter set of the distribution.
std::vector< double > probabilities () const
Returns the probabilities of the distribution.
void reset ()
Resets the distribution state.

Friends

template<typename _IntType1 , typename _CharT , typename _Traits > std::basic_ostream< _CharT, _Traits > & operator<< (std::basic_ostream< _CharT, _Traits > &__os, const std::discrete_distribution< _IntType1 > &__x)
Inserts a discrete_distribution random number distribution __x into the output stream __os.
bool operator== (const discrete_distribution &__d1, const discrete_distribution &__d2)
Return true if two discrete distributions have the same parameters.
template<typename _IntType1 , typename _CharT , typename _Traits > std::basic_istream< _CharT, _Traits > & operator>> (std::basic_istream< _CharT, _Traits > &__is, std::discrete_distribution< _IntType1 > &__x)
Extracts a discrete_distribution random number distribution __x from the input stream __is.

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 5279 of file random.h.

Author

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Info

Wed Feb 10 2021 libstdc++