Espaços nominais
Variantes
    Acções

      std::static_pointer_cast, std::dynamic_pointer_cast, std::const_pointer_cast

      Da cppreference.com
      < cpp‎ | memory‎ | shared ptr

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

      The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here.

      Click here for the English version of this page

       
      C++
       
      Biblioteca de utilitários
      Digite apoio (basic types, RTTI, type traits)
      Gerenciamento de memória dinâmica
      De tratamento de erros
      Utilidades do programa
      Variadic funções
      Data e hora
      Objetos de função
      (C++11)
      (C++11)
      Os operadores relacionais
      Original:
      Relational operators
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      rel_ops::operator!=
      rel_ops::operator>
      rel_ops::operator<=
      rel_ops::operator>=
      Pares e tuplas
      Original:
      Pairs and tuples
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      (C++11)
      (C++11)
      (C++11)
      Troque, avançar e avançar
      Original:
      Swap, forward and move
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      (C++11)
      (C++11)
      (C++11)
      (C++11)
       
      Gerenciamento de memória dinâmica
      Gerenciamento de memória de baixo nível
      Alocadores
      Original:
      Allocators
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      Uninitialized armazenamento
      Original:
      Uninitialized storage
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      (C++11)
      Ponteiros inteligentes
      Original:
      Smart pointers
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      (C++11)
      (C++11)
      (C++11)
      (obsoleta)
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      Apoio a coleta de lixo
      Original:
      Garbage collection support
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      Diversos
      Original:
      Miscellaneous
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      (C++11)
      (C++11)
      (C++11)
      C Library
      Original:
      C Library
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
       
      std::shared_ptr
      Funções de membro
      Original:
      Member functions
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      shared_ptr::shared_ptr
      shared_ptr::~shared_ptr
      shared_ptr::operator=
      Modificadores
      Original:
      Modifiers
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      shared_ptr::reset
      shared_ptr::swap
      Observadores
      Original:
      Observers
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      shared_ptr::get
      shared_ptr::operator*
      shared_ptr::operator->
      shared_ptr::use_count
      shared_ptr::unique
      shared_ptr::operator bool
      shared_ptr::owner_before
      Não-membros funções
      Original:
      Non-member functions
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      static_pointer_castdynamic_pointer_castconst_pointer_cast
       
      template<class T, class U >
      shared_ptr<T> static_pointer_cast(const shared_ptr<U>& r );
      		 (1) (desde C++11)
      template<class T, class U >
      shared_ptr<T> dynamic_pointer_cast(const shared_ptr<U>& r );
      		 (2) (desde C++11)
      template<class T, class U >
      shared_ptr<T> const_pointer_cast(const shared_ptr<U>& r );
      		 (3) (desde C++11)
      Irá retornar uma nova instância std::shared_ptr com um tipo de objeto fundido gerenciado a partir do tipo r do objeto gerenciado. Ambos os ponteiros inteligentes irão compartilhar a propriedade do objeto gerenciado.
      Original:
      Will return a new instance of std::shared_ptr with a casted managed object type from the r's managed object type. Both smart pointers will share the ownership of the managed object.
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      O objeto gerenciado std::shared_ptr resultando serão obtidos através do telefone (na respectiva ordem):
      Original:
      The resulting std::shared_ptr's managed object will be obtained by calling (in respective order):
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      1)static_cast<T*>(r.get()).
      2)
      dynamic_cast<T*>(r.get()) (Se o resultado da dynamic_cast é 0, o shared_ptr retornado será vazio).
      Original:
      dynamic_cast<T*>(r.get()) (If the result of the dynamic_cast is 0, the returned shared_ptr will be empty).
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      3)const_cast<T*>(r.get()).
      Em qualquer caso, se o parâmetro é uma rstd::shared_ptr vazia, o resultado será uma nova std::shared_ptr vazio.
      Original:
      In any case, if the parameter r is an empty std::shared_ptr the result will be a new empty std::shared_ptr.
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.

      [editar]Parâmetros

      r -
      O ponteiro para converter
      Original:
      The pointer to convert
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.

      [editar]Exceções

      noexcept specification:  
      noexcept
        (desde C++11)
      Obtida de "https://pt.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/pointer_cast&oldid=21144"
      close