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std::bernoulli_distribution(3cxx) std::bernoulli_distribution(3cxx)

NAME

std::bernoulli_distribution -

SYNOPSIS

Public Types


typedef int input_type
 
typedef bool result_type
 

Public Member Functions


bernoulli_distribution (double __p=0.5)
 
template<class _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator &__urng)
 
double p () const
 
void reset ()
 

Friends


template<typename _CharT , typename _Traits > std::basic_ostream< _CharT,
 
_Traits > & operator<< (std::basic_ostream< _CharT, _Traits > &__os, const bernoulli_distribution &__x)"
 
template<typename _CharT , typename _Traits > std::basic_istream< _CharT,
 
_Traits > & operator>> (std::basic_istream< _CharT, _Traits > &__is, bernoulli_distribution &__x)"
 

Detailed Description

A Bernoulli random number distribution.
 
Generates a sequence of true and false values with likelihood $ p $ that true will come up and $ (1 - p) $ that false will appear.
Definition at line 1688 of file tr1_impl/random.

Constructor & Destructor Documentation

std::bernoulli_distribution::bernoulli_distribution (double__p = 0.5) [inline], [explicit]

Constructs a Bernoulli distribution with likelihood p.
Parameters:
__p [IN] The likelihood of a true result being returned. Must be in the interval $ [0, 1] $.
 
Definition at line 1702 of file tr1_impl/random.

Member Function Documentation

template<class _UniformRandomNumberGenerator > result_type std::bernoulli_distribution::operator() (_UniformRandomNumberGenerator &__urng) [inline]

Gets the next value in the Bernoullian sequence.
Definition at line 1728 of file tr1_impl/random.

double std::bernoulli_distribution::p () const [inline]

Gets the p parameter of the distribution.
Definition at line 1712 of file tr1_impl/random.

void std::bernoulli_distribution::reset () [inline]

Resets the distribution state.
Does nothing for a Bernoulli distribution.
Definition at line 1721 of file tr1_impl/random.

Friends And Related Function Documentation

template<typename _CharT , typename _Traits > std::basic_ostream<_CharT, _Traits>& operator<< ( std::basic_ostream< _CharT, _Traits > &__os, const bernoulli_distribution &__x) [friend]

Inserts a bernoulli_distribution random number distribution __x into the output stream __os.
Parameters:
__os An output stream.
 
__x A bernoulli_distribution random number distribution.
Returns:
The output stream with the state of __x inserted or in an error state.
 
Definition at line 823 of file random.tcc.

template<typename _CharT , typename _Traits > std::basic_istream<_CharT, _Traits>& operator>> ( std::basic_istream< _CharT, _Traits > &__is, bernoulli_distribution &__x) [friend]

Extracts a bernoulli_distribution random number distribution __x from the input stream __is.
Parameters:
__is An input stream.
 
__x A bernoulli_distribution random number generator engine.
Returns:
The input stream with __x extracted or in an error state.
 
Definition at line 1761 of file tr1_impl/random.
 

Author

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Thu Aug 2 2012 libstdc++