std::discrete_d...ion< _IntType >(3cxx) std::discrete_d...ion< _IntType >(3cxx)
NAME
std::discrete_distribution< _IntType > - A discrete_distribution random
number distribution.
SYNOPSIS
#include <random>
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.
This distribution produces random numbers $ i, 0 i < n $, distributed
according to the probability mass function $ p(i | p_0, ..., p_{n-1}) =
p_i $.
Since
C++11
Member Typedef Documentation
template<typename _IntType = int> typedef _IntType
std::discrete_distribution< _IntType >::result_type
The type of the range of the distribution.
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.
References std::vector< _Tp, _Alloc >::empty(), and 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.
template<typename _IntType = int> template<typename
_UniformRandomNumberGenerator > result_type std::discrete_distribution<
_IntType >::operator() (_UniformRandomNumberGenerator & __urng) [inline]
Generating functions.
References std::discrete_distribution< _IntType >::operator()().
Referenced by std::discrete_distribution< _IntType >::operator()().
template<typename _IntType = int> param_type std::discrete_distribution<
_IntType >::param () const [inline]
Returns the parameter set of the distribution.
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.
template<typename _IntType = int> std::vector< double >
std::discrete_distribution< _IntType >::probabilities () const [inline]
Returns the probabilities of the distribution.
References std::vector< _Tp, _Alloc >::empty().
template<typename _IntType = int> void std::discrete_distribution< _IntType
>::reset () [inline]
Resets the distribution state.
Friends And Related Symbol Documentation
template<typename _IntType = int> 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) [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> bool operator== (const
discrete_distribution< _IntType > & __d1, const discrete_distribution<
_IntType > & __d2) [friend]
Return true if two discrete distributions have the same parameters.
template<typename _IntType = int> template<typename _IntType1 , typename
_CharT , typename _Traits > std::basic_istream< _CharT, _Traits > &
operator>> (std::basic_istream< _CharT, _Traits > & __is,
std::discrete_distribution< _IntType1 > & __x) [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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