Provided by: libstdc++6-4.4-doc_4.4.7-1ubuntu2_all

#### NAME

```       std::geometric_distribution< _IntType, _RealType > -

```

#### 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)"

```

#### DetailedDescription

```   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.

```

#### MemberFunctionDocumentation

```   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.

```

#### FriendsAndRelatedFunctionDocumentation

```   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

```       Generated automatically by Doxygen for libstdc++ from the source code.

libstdc++                                std::geometric2distribution< _IntType, _RealType >(3cxx)
```