Espaces de noms
Variantes

    <div class="t-tr-text">Concepts C + +:<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">C++ concepts:</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div> RandomNumberDistribution

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    <metanoindex/>

     
    C++
     
    C + + concepts
    De base
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    Basic
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    Bibliothèque échelle
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    Library-Wide
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    NullablePointer (C++11)
    Hash (C++11)
    Allocator
    Récipient
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    Container
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    Éléments de conteneurs
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    Container Elements
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    CopyInsertable (C++11)
    MoveInsertable (C++11)
    Iterator
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    Iterator
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    Nombres aléatoires
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    Random Numbers
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    Simultanéité
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    Concurrency
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    BasicLockable (C++11)
    Lockable (C++11)
    TimedLockable (C++11)
    Mutex (C++11)
    TimedMutex (C++11)
    Autre
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    Other
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    Un RandomNumberDistribution est un objet fonction renvoyant des nombres aléatoires selon une fonction de densité de probabilité p(x) ou un distribution de probabilité discrète P(x
    i    )     .
    Original:
    A RandomNumberDistribution is a function object returning random numbers according to a fonction de densité de probabilité p(x) or a distribution de probabilité discrète P(x
    i    )    .
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    Exigences

    This section is incomplete
    • D est une classe répondant aux exigences RandomNumberDistribution. Il doit également satisfaire à la CopyConstructible et les exigences CopyAssignable .
      Original:
      D is a class meeting the RandomNumberDistribution requirements. It shall also satisfy the CopyConstructible and CopyAssignable requirements.
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    • T est le result_type associé .
      Original:
      T is the associated result_type.
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    • P est le param_type associé. Il doit satisfaire aux CopyConstructible, CopyAssignable, les exigences EqualityComparable et .
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      P is the associated param_type. It shall satisfy the CopyConstructible, CopyAssignable, and EqualityComparable requirements.
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    • d est un objet de D et x, y sont des objets potentiellement const de D .
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      d is an object of D and x,y are potentially const objects of D.
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    • p est une valeur constante de P peut-être .
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      p is a possibly constant value of P.
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    • g, g1, g2 sont lvalues ​​rencontrer le concept UniformRandomNumberGenerator .
      Original:
      g,g1,g2 are lvalues meeting the UniformRandomNumberGenerator concept.
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    • os est une lvalue de std::basic_ostream .
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      os is an lvalue of std::basic_ostream.
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    • is est une lvalue de std::basic_istream .
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      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.