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      <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> RandomAccessIterator

      De cppreference.com
      < cpp‎ | concept

      This page has been machine-translated from the English version of the wiki using Google Translate.

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      C++
       
      C + + concepts
      De base
      Original:
      Basic
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      Bibliothèque échelle
      Original:
      Library-Wide
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      Récipient
      Original:
      Container
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      Éléments de conteneurs
      Original:
      Container Elements
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      Iterator
      Original:
      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
      Original:
      Other
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      Un RandomAccessIterator est un BidirectionalIterator qui peut être déplacé pour pointer vers n'importe quel élément de la constante de temps .
      Original:
      A RandomAccessIterator is a BidirectionalIterator that can be moved to point to any element in constant time.
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      Un pointeur standard est un exemple d'un type qui répond à ce concept .
      Original:
      A standard pointer is an example of a type that satisfies this concept.
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      [modifier]Exigences

      En plus de l'exigence ci-dessus, pour un type de It être un RandomAccessIterator, a cas, b, i et r de It doit:
      Original:
      In addition to the above requirement, for a type It to be an RandomAccessIterator, instances a, b, i, and r of It must:
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      ExpressionReturnEquivalent expressionNotes
      r += nIt&if(n>=0)

         while(n--)++r;
      else
         while(n++)--r;
      return r;

      • n peut être positif ou négatif
        Original:
        n can be both positive or negative
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      • Complexité constante (c'est-à-dire l'expression équivalente ne peut être utilisé comme mise en œuvre)
        Original:
        Constant complexity (that is, the equivalent expression cannot be used as implementation)
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      i + nItIt temp = i;

      return temp += n;

      n + iIti + n
      r -= nIt&return r +=-n;
      i - nItIt temp = i;

      return temp -= n;

      n - iIti - n
      b - adifferencenreturns n such that a+n==b
      i[n]convertible to reference*(i + n)
      a < bcontextually convertible to boolb - a >0Strict total ordering relation:
      • !(a < a)
      • si a < b puis !(b < a)
        Original:
        if a < b then !(b < a)
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      • si a < b et b < c puis a < c
        Original:
        if a < b and b < c then a < c
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      • a < b ou b < a ou a == b
        (exactement l'une des expressions est vraie)
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        a < b or b < a or a == b
        (exactly one of the expressions is true)
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      a > bcontextually convertible to boolb < aTotal ordering relation opposite to a < b
      a >= bcontextually convertible to bool!(a < b)
      a <= bcontextually convertible to bool!(a > b)

      [modifier]Notes du tableau

      • It est le type de mise en œuvre de ce concept
        Original:
        It is the type implementing this concept
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      • T est le type de std::iterator_traits<It>::value_type
        Original:
        T is the type std::iterator_traits<It>::value_type
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      • reference est le type de std::iterator_traits<It>::reference
        Original:
        reference is the type std::iterator_traits<It>::reference
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      • difference est le type de std::iterator_traits<It>::difference_type
        Original:
        difference is the type std::iterator_traits<It>::difference_type
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      • i, a, b sont des objets de type It ou const It
        Original:
        i, a, b are objects of type It or const It
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      • r est une valeur de type de It&
        Original:
        r is a value of type It&
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      • n est un nombre entier de difference type
        Original:
        n is an integer of type difference
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      Les règles ci-dessus impliquent que RandomAccessIterator met également en œuvre LessThanComparable .
      Original:
      The above rules imply that RandomAccessIterator also implements LessThanComparable.
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      Un mutable RandomAccessiterator est un BidirectionalIterator qui satisfait en outre aux exigences OutputIterator .
      Original:
      A mutable RandomAccessiterator is a BidirectionalIterator that additionally satisfies the OutputIterator requirements.
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      Récupérée de « https://fr.cppreference.com/mwiki/index.php?title=cpp/concept/RandomAccessIterator&oldid=39343 »
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