std::discard_block - Online Linux Manual PageSection : 3
Updated : 19 Jun 2018
Source : libstdc++

NAMEstd::discard_block −

SYNOPSIS

Public Typestypedef _UniformRandomNumberGenerator base_type
typedef base_type::result_type result_type

Public Member Functionsconst base_type & base () const
template<class _Gen > discard_block (_Gen &__g)
discard_block (unsigned long __s)
discard_block (const base_type &__rng)
discard_block ()
result_type max () const
result_type min () const
result_type operator() ()
template<class _Gen > void seed (_Gen &__g)
void seed ()

Static Public Attributesstatic const int block_size
static const int used_block

Friendsbool operator!= (const discard_block &__lhs, const discard_block &__rhs)
template<class _UniformRandomNumberGenerator1 , int __p1, int __r1, typename _CharT , typename _Traits > std::basic_ostream< _CharT, _Traits > & operator<< (std::basic_ostream< _CharT, _Traits > &__os, const discard_block< _UniformRandomNumberGenerator1, __p1, __r1 > &__x)
bool operator== (const discard_block &__lhs, const discard_block &__rhs)
template<class _UniformRandomNumberGenerator1 , int __p1, int __r1, typename _CharT , typename _Traits > std::basic_istream< _CharT, _Traits > & operator>> (std::basic_istream< _CharT, _Traits > &__is, discard_block< _UniformRandomNumberGenerator1, __p1, __r1 > &__x)

Detailed Description

template<class _UniformRandomNumberGenerator, int __p, int __r> class std::discard_block< _UniformRandomNumberGenerator, __p, __r >Produces random numbers from some base engine by discarding blocks of data. 0 <= __r <= __p Definition at line 1078 of file tr1_impl/random.

Member Typedef Documentation

template<class _UniformRandomNumberGenerator, int __p, int __r> typedef _UniformRandomNumberGenerator std::discard_block< _UniformRandomNumberGenerator, __p, __r >::base_type The type of the underlying generator engine.Definition at line 1085 of file tr1_impl/random.

template<class _UniformRandomNumberGenerator, int __p, int __r> typedef base_type::result_type std::discard_block< _UniformRandomNumberGenerator, __p, __r >::result_type The type of the generated random value.Definition at line 1087 of file tr1_impl/random.

Constructor & Destructor Documentation

template<class _UniformRandomNumberGenerator, int __p, int __r> std::discard_block< _UniformRandomNumberGenerator, __p, __r >::discard_block () [inline] Constructs a default discard_block engine.The underlying engine is default constructed as well. Definition at line 1098 of file tr1_impl/random.

template<class _UniformRandomNumberGenerator, int __p, int __r> std::discard_block< _UniformRandomNumberGenerator, __p, __r >::discard_block (const base_type & __rng) [inline, explicit] Copy constructs a discard_block engine.Copies an existing base class random number generator. Parameters: rng An existing (base class) engine object. Definition at line 1108 of file tr1_impl/random.

template<class _UniformRandomNumberGenerator, int __p, int __r> std::discard_block< _UniformRandomNumberGenerator, __p, __r >::discard_block (unsigned long __s) [inline, explicit] Seed constructs a discard_block engine.Constructs the underlying generator engine seeded with __s. Parameters: __s A seed value for the base class engine. Definition at line 1118 of file tr1_impl/random.

template<class _UniformRandomNumberGenerator, int __p, int __r> template<class _Gen > std::discard_block< _UniformRandomNumberGenerator, __p, __r >::discard_block (_Gen & __g) [inline] Generator construct a discard_block engine.Parameters: __g A seed generator function. Definition at line 1127 of file tr1_impl/random.

Member Function Documentation

template<class _UniformRandomNumberGenerator, int __p, int __r> const base_type& std::discard_block< _UniformRandomNumberGenerator, __p, __r >::base () const [inline] Gets a const reference to the underlying generator engine object.Definition at line 1156 of file tr1_impl/random.

template<class _UniformRandomNumberGenerator, int __p, int __r> result_type std::discard_block< _UniformRandomNumberGenerator, __p, __r >::max () const [inline] Gets the maximum value in the generated random number range.Definition at line 1170 of file tr1_impl/random.

template<class _UniformRandomNumberGenerator, int __p, int __r> result_type std::discard_block< _UniformRandomNumberGenerator, __p, __r >::min () const [inline] Gets the minimum value in the generated random number range.Definition at line 1163 of file tr1_impl/random.

template<class _UniformRandomNumberGenerator , int __p, int __r> discard_block< _UniformRandomNumberGenerator, __p, __r >::result_type std::discard_block< _UniformRandomNumberGenerator, __p, __r >::operator() () [inline] Gets the next value in the generated random number sequence.Definition at line 583 of file random.tcc.

template<class _UniformRandomNumberGenerator, int __p, int __r> template<class _Gen > void std::discard_block< _UniformRandomNumberGenerator, __p, __r >::seed (_Gen & __g) [inline] Reseeds the discard_block object with the given seed generator function.Parameters: __g A seed generator function. Definition at line 1146 of file tr1_impl/random.

template<class _UniformRandomNumberGenerator, int __p, int __r> void std::discard_block< _UniformRandomNumberGenerator, __p, __r >::seed () [inline] Reseeds the discard_block object with the default seed for the underlying base class generator engine.Definition at line 1134 of file tr1_impl/random.

Friends And Related Function Documentation

template<class _UniformRandomNumberGenerator, int __p, int __r> bool operator!= (const discard_block< _UniformRandomNumberGenerator, __p, __r > & __lhs, const discard_block< _UniformRandomNumberGenerator, __p, __r > & __rhs) [friend] Compares two discard_block random number generator objects of the same type for inequality.Parameters: __lhs A discard_block random number generator object.
__rhs Another discard_block random number generator object.
Returns: true if the two objects are not equal, false otherwise. Definition at line 1204 of file tr1_impl/random.

template<class _UniformRandomNumberGenerator, int __p, int __r> template<class _UniformRandomNumberGenerator1 , int __p1, int __r1, typename _CharT , typename _Traits > std::basic_ostream<_CharT, _Traits>& operator<< (std::basic_ostream< _CharT, _Traits > & __os, const discard_block< _UniformRandomNumberGenerator1, __p1, __r1 > & __x) [friend] Inserts the current state of a discard_block random number generator engine __x into the output stream __os.Parameters: __os An output stream.
__x A discard_block random number generator engine.
Returns: The output stream with the state of __x inserted or in an error state.

template<class _UniformRandomNumberGenerator, int __p, int __r> bool operator== (const discard_block< _UniformRandomNumberGenerator, __p, __r > & __lhs, const discard_block< _UniformRandomNumberGenerator, __p, __r > & __rhs) [friend] Compares two discard_block random number generator objects of the same type for equality.Parameters: __lhs A discard_block random number generator object.
__rhs Another discard_block random number generator object.
Returns: true if the two objects are equal, false otherwise. Definition at line 1190 of file tr1_impl/random.

template<class _UniformRandomNumberGenerator, int __p, int __r> template<class _UniformRandomNumberGenerator1 , int __p1, int __r1, typename _CharT , typename _Traits > std::basic_istream<_CharT, _Traits>& operator>> (std::basic_istream< _CharT, _Traits > & __is, discard_block< _UniformRandomNumberGenerator1, __p1, __r1 > & __x) [friend] Extracts the current state of a % subtract_with_carry random number generator engine __x from the input stream __is.Parameters: __is An input stream.
__x A discard_block random number generator engine.
Returns: The input stream with the state of __x extracted or in an error state.

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