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      std::iterator_traits

      De cppreference.com

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      <metanoindex/>

       
      C++
       
      Biblioteca Iterator
      Primitivas iterador
      Original:
      Iterator primitives
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      Adaptadores de iterador
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      Iterator adaptors
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      Iteradores fluxo
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      Stream iterators
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      Operações iterador
      Original:
      Iterator operations
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      (C++11)
      (C++11)
      Variar de acesso
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      Range access
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      (C++11)
      (C++11)
       
      <tbody> </tbody>
      Definido no cabeçalho <iterator>
      template< class Iterator> struct iterator_traits;
      template< class T > struct iterator_traits<T*>;
      template< class T > struct iterator_traits<const T*>;
      std::iterator_traits característica é a classe de tipo que fornece uma interface uniforme para as propriedades dos tipos iterador. Isso torna possível implementar algoritmos só em termos de iteradores.
      Original:
      std::iterator_traits is the type trait class that provides uniform interface to the properties of iterator types. This makes it possible to implement algorithms only in terms of iterators.
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      Tipos de membro

      Tipo de membro
      Original:
      Member type
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      		 Definition
      difference_type Iterator::difference_type
      value_type Iterator::value_type
      pointer Iterator::pointer
      reference Iterator::reference
      iterator_category Iterator::iterator_category

      Especializações

      Esta característica tipo pode ser especializado para os tipos fornecidos pelo utilizador que podem ser utilizados como iteradores. A biblioteca padrão fornece duas especializações parciais para tipos de ponteiro T *, o que torna possível a utilização de todos os algoritmos baseados iterador com ponteiros crus.
      Original:
      This type trait may be specialized for user-provided types that may be used as iterators. The standard library provides two partial specializations for pointer types T*, which makes it possible to use all iterator-based algorithms with raw pointers.
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      * T membros tipos de especialização

      Tipo de membro
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      Member type
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      		 Definition
      difference_type std::ptrdiff_t
      value_type T
      pointer T*
      reference T&
      iterator_category std::random_access_iterator_tag