Espaços nominais
Variantes
    Ações

      std::atomic::fetch_add

      De cppreference.com

      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

      <metanoindex/>

       
      C++
       
      Biblioteca operações atômica
      Tipos
      Original:
      Types
      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)
      Funções
      Original:
      Functions
      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)
      (C++11)(C++11)(C++11)(C++11)
      (C++11)(C++11)
      (C++11)(C++11)
      (C++11)(C++11)
      (C++11)(C++11)
      (C++11)(C++11)
      Bandeiras atômicas
      Original:
      Atomic flags
      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)
      Inicialização
      Original:
      Initialization
      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)
      Memória de encomenda
      Original:
      Memory ordering
      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)
       
      std::atomic
      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.
      atomic::atomic
      atomic::operator=
      atomic::is_lock_free
      atomic::store
      atomic::load
      atomic::operator T
      atomic::exchange
      atomic::compare_exchange
      Membro funções especializadas
      Original:
      Specialized member functions
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      atomic::fetch_add
      atomic::fetch_sub
      atomic::fetch_and
      atomic::fetch_or
      atomic::fetch_xor
      atomic::operator++
      atomic::operator++(int)
      atomic::operator--
      atomic::operator--(int)
      atomic::operator+=
      atomic::operator-=
      atomic::operator&=
      atomic::operator|=
      atomic::operator^=
       
      <tbody> </tbody>
      T fetch_add( T arg, memory_order = std::memory_order_seq_cst ); T fetch_add( T arg, memory_order = std::memory_order_seq_cst ) volatile;
      		 (único membro da atomic<Integral> especialização modelo)
      (desde C++11)
      T* fetch_add( std::ptrdiff_t arg, memory_order = std::memory_order_seq_cst ); T* fetch_add( std::ptrdiff_t arg, memory_order = std::memory_order_seq_cst ) volatile;
      		 (único membro da atomic<T*> especialização modelo)
      (desde C++11)
      Atomicamente substitui o valor da corrente com o resultado da adição aritmética do valor e arg. A operação é ler-modificar-escrever a operação. A memória é afectada de acordo com o valor de memory_order.
      Original:
      Atomically replaces the current value with the result of arithmetic addition of the value and arg. The operation is read-modify-write operation. Memory is affected according to the value of memory_order.
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      Para os tipos de Integral assinados, a aritmética é definida para usar dois representação de complemento. Lá
      Original:
      For signed Integral types, arithmetic is defined to use two’s complement representation. There
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      há resultados indefinidos. Para os tipos de T*, o resultado pode ser um endereço indefinido, mas as operações de outra forma não têm um comportamento indefinido.
      Original:
      are no undefined results. For T* types, the result may be an undefined address, but the operations otherwise have no undefined behavior.
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.

      Parâmetros

      arg -
      o outro argumento de adição aritmética
      Original:
      the other argument of arithmetic addition
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      memory_order -
      restrições de ordem memória de aplicar
      Original:
      memory order constraints to enforce
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.

      Valor de retorno

      O valor da variável atómica antes da chamada.
      Original:
      The value of the atomic variable before the call.
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.

      Exceções

      noexcept specification:  
      <tbody> </tbody>
      noexcept
        (desde C++11)

      Veja também

      (C++11)
      (C++11)
      adiciona um valor não-atômica para um objeto atômico e obtém o valor anterior do nuclear
      Original:
      adds a non-atomic value to an atomic object and obtains the previous value of the atomic
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.

      (modelo de função) [edit]