Концепции C++: RandomNumberDistribution

 

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Концепции C++

Basic Original: Basic The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
DefaultConstructible CopyAssignable CopyConstructible	MoveAssignable (C++11) MoveConstructible (C++11) Destructible
Библиотека-Wide Original: Library-Wide The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
EqualityComparable LessThanComparable Swappable (C++11) ValueSwappable (C++11)	NullablePointer (C++11) Hash (C++11) Allocator
Контейнер Original: Container The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Container SequenceContainer ReversibleContainer	AssociativeContainer AllocatorAwareContainer UnorderedAssociativeContainer (C++11)
Контейнер элементов Original: Container Elements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
CopyInsertable (C++11) MoveInsertable (C++11)	EmplaceConstructible (C++11)
Iterator Original: Iterator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Iterator OutputIterator InputIterator	ForwardIterator BidirectionalIterator RandomAccessIterator
Случайных чисел Original: Random Numbers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
SeedSequence (C++11) RandomNumberEngine (C++11)	RandomNumberDistribution (C++11) UniformRandomNumberGenerator (C++11) RandomNumberEngineAdaptor (C++11)
Параллелизмом Original: Concurrency The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
BasicLockable (C++11) Lockable (C++11) TimedLockable (C++11)	Mutex (C++11) TimedMutex (C++11)
Другое Original: Other The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
CharTraits pos_type off_type Clock (C++11)	UnaryTypeTrait (C++11) BinaryTypeTrait (C++11) TransformationTrait (C++11) TrivialClock (C++11)

 

RandomNumberDistribution является функцией объекта возвращение случайных чисел в соответствии с функция плотности вероятности p(x) или дискретное распределение вероятностей P(x
i).

Original:

A RandomNumberDistribution is a function object returning random numbers according to a функция плотности вероятности p(x) or a дискретное распределение вероятностей P(x
i).

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Требования

• D в классе удовлетворении требований RandomNumberDistribution. Он должен также удовлетворять CopyConstructible и CopyAssignable требованиям.

  Original:

  D is a class meeting the RandomNumberDistribution requirements. It shall also satisfy the CopyConstructible and CopyAssignable requirements.

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• T является ассоциированным result_type.

  Original:

  T is the associated result_type.

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• P является ассоциированным param_type. Она должна удовлетворять CopyConstructible, CopyAssignable, а также требования EqualityComparable.

  Original:

  P is the associated param_type. It shall satisfy the CopyConstructible, CopyAssignable, and EqualityComparable requirements.

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• d является объектом D и x, y потенциально являются постоянными объектами из D.

  Original:

  d is an object of D and x,y are potentially const objects of D.

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• p это возможно постоянное значение P.

  Original:

  p is a possibly constant value of P.

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• g, g1, g2 которые lvalues ​​удовлетворении UniformRandomNumberGenerator концепции.

  Original:

  g,g1,g2 are lvalues meeting the UniformRandomNumberGenerator concept.

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• os является именующее из std::basic_ostream.

  Original:

  os is an lvalue of std::basic_ostream.

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• is является именующее из std::basic_istream.

  Original:

  is is an lvalue of std::basic_istream.

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Expression	Type	Notes	Complexity
D::result_type	T	An arithmetic type	compile-time
D::param_type	P		compile-time
D()			constant
D(p)			Same as p's construction
d.reset()	void	Resets the internal state of the distribution object. After a call to this function, the next call to operator() on the distribution object will not be dependent on previous calls to operator().	constant
x.param()	P		No worse than D(p)
d.param(p)	void		No worse than D(p)
d(g)	T	d(g, d.param())	Same as d(g, d.param())
d(g,p)	T	When called with the same g and p parameter it returns a sequence of numbers distributed according to p(x;p) or P(x i;p)	Amortized constant number of incovations of g
x.min()	T	The greatest lower bound returned by operator()	constant
x.max()	T	The least upper bound returned by operator()	constant
x == y	bool		constant
y != y	bool	!(x == y)	constant
os << x	Reference to the type of os	Writes a textual representation of the distribution parameters and internal state to os as textual representation. The formatting flags and fill character of os are unchanged.
is >> d	Reference to the type of is	Restores the distribution parameters and internal state with data read from is. The formatting flags of is are unchanged. The data must have been written using a stream with the same locale, CharT and Traits template parameters, otherwise the behavior is undefined. If bad input is encountered, is.setstate(std::ios::failbit) is called, which may throw std::ios_base::failure. d is unchanged in that case.