std_independent_bits_engine.3cxx

Langue: en

Version: 352400 (ubuntu - 24/10/10)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

std::independent_bits_engine -

SYNOPSIS


Public Types


typedef _UIntType result_type

Public Member Functions


independent_bits_engine ()

independent_bits_engine (const _RandomNumberEngine &__rne)

independent_bits_engine (result_type __s)

template<typename _Sseq , typename = typename std::enable_if<!std::is_same<_Sseq, independent_bits_engine>::value && !std::is_same<_Sseq, _RandomNumberEngine>::value> ::type> independent_bits_engine (_Sseq &__q)

independent_bits_engine (_RandomNumberEngine &&__rne)

const _RandomNumberEngine & base () const

void discard (unsigned long long __z)

result_type max () const

result_type min () const

result_type operator() ()

void seed (result_type __s)

template<typename _Sseq > void seed (_Sseq &__q)

void seed ()

Friends



bool operator== (const independent_bits_engine &__lhs, const independent_bits_engine &__rhs)

template<typename _CharT , typename _Traits > std::basic_istream< _CharT, _Traits > & operator>> (std::basic_istream< _CharT, _Traits > &__is, std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType > &__x)

Detailed Description

template<typename _RandomNumberEngine, size_t __w, typename _UIntType> class std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType >

Produces random numbers by combining random numbers from some base engine to produce random numbers with a specifies number of bits __w.

Definition at line 1010 of file random.h.

Member Typedef Documentation

template<typename _RandomNumberEngine, size_t __w, typename _UIntType> typedef _UIntType std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType >::result_typeThe type of the generated random value.

Definition at line 1019 of file random.h.

Constructor & Destructor Documentation

template<typename _RandomNumberEngine, size_t __w, typename _UIntType> std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType >::independent_bits_engine () [inline]

Constructs a default independent_bits_engine engine. The underlying engine is default constructed as well.

Definition at line 1026 of file random.h.

template<typename _RandomNumberEngine, size_t __w, typename _UIntType> std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType >::independent_bits_engine (const _RandomNumberEngine & __rne) [inline, explicit]

Copy constructs a independent_bits_engine engine. Copies an existing base class random number generator.

Parameters:

rng An existing (base class) engine object.

Definition at line 1036 of file random.h.

template<typename _RandomNumberEngine, size_t __w, typename _UIntType> std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType >::independent_bits_engine (_RandomNumberEngine && __rne) [inline, explicit]

Move constructs a independent_bits_engine engine. Copies an existing base class random number generator.

Parameters:

rng An existing (base class) engine object.

Definition at line 1046 of file random.h.

template<typename _RandomNumberEngine, size_t __w, typename _UIntType> std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType >::independent_bits_engine (result_type __s) [inline, explicit]

Seed constructs a independent_bits_engine engine. Constructs the underlying generator engine seeded with __s.

Parameters:

__s A seed value for the base class engine.

Definition at line 1056 of file random.h.

template<typename _RandomNumberEngine, size_t __w, typename _UIntType> template<typename _Sseq , typename = typename std::enable_if<!std::is_same<_Sseq, independent_bits_engine>::value && !std::is_same<_Sseq, _RandomNumberEngine>::value> ::type> std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType >::independent_bits_engine (_Sseq & __q) [inline, explicit]

Generator construct a independent_bits_engine engine. Parameters:

__q A seed sequence.

Definition at line 1069 of file random.h.

Member Function Documentation

template<typename _RandomNumberEngine, size_t __w, typename _UIntType> const _RandomNumberEngine& std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType >::base () const [inline]

Gets a const reference to the underlying generator engine object.

Definition at line 1104 of file random.h.

template<typename _RandomNumberEngine, size_t __w, typename _UIntType> void std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType >::discard (unsigned long long __z) [inline]

Discard a sequence of random numbers. Todo

Look for a faster way to do discard.

Definition at line 1131 of file random.h.

template<typename _RandomNumberEngine, size_t __w, typename _UIntType> result_type std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType >::max () const [inline]

Gets the maximum value in the generated random number range. Todo

This should be constexpr.

Definition at line 1122 of file random.h.

template<typename _RandomNumberEngine, size_t __w, typename _UIntType> result_type std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType >::min () const [inline]

Gets the minimum value in the generated random number range. Todo

This should be constexpr.

Definition at line 1113 of file random.h.

template<typename _RandomNumberEngine , size_t __w, typename _UIntType > independent_bits_engine< _RandomNumberEngine, __w, _UIntType >::result_type std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType >::operator() ()

Gets the next value in the generated random number sequence.

Definition at line 719 of file random.tcc.

References std::log().

template<typename _RandomNumberEngine, size_t __w, typename _UIntType> template<typename _Sseq > void std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType >::seed (_Sseq & __q) [inline]

Reseeds the independent_bits_engine object with the given seed sequence. Parameters:

__q A seed generator function.

Definition at line 1096 of file random.h.

template<typename _RandomNumberEngine, size_t __w, typename _UIntType> void std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType >::seed (result_type __s) [inline]

Reseeds the independent_bits_engine object with the default seed for the underlying base class generator engine.

Definition at line 1086 of file random.h.

template<typename _RandomNumberEngine, size_t __w, typename _UIntType> void std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType >::seed () [inline]

Reseeds the independent_bits_engine object with the default seed for the underlying base class generator engine.

Definition at line 1078 of file random.h.

template<typename _RandomNumberEngine, size_t __w, typename _UIntType> bool operator== (const independent_bits_engine< _RandomNumberEngine, __w, _UIntType > & __lhs, const independent_bits_engine< _RandomNumberEngine, __w, _UIntType > & __rhs) [friend]

Compares two independent_bits_engine random number generator objects of the same type for equality. Parameters:

__lhs A independent_bits_engine random number generator object.
__rhs Another independent_bits_engine random number generator object.

Returns:

true if the infinite sequences of generated values would be equal, false otherwise.

Definition at line 1156 of file random.h.

template<typename _RandomNumberEngine, size_t __w, typename _UIntType> template<typename _CharT , typename _Traits > std::basic_istream<_CharT, _Traits>& operator>> (std::basic_istream< _CharT, _Traits > & __is, std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType > & __x) [friend]

Extracts the current state of a % subtract_with_carry_engine random number generator engine __x from the input stream __is. Parameters:

__is An input stream.
__x A independent_bits_engine random number generator engine.

Returns:

The input stream with the state of __x extracted or in an error state.

Definition at line 1174 of file random.h.

Author

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