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      atomic_exchange, atomic_exchange_explicit

      De cppreference.com
      < c | atomic

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      <metanoindex/>

       
      C
       
      Biblioteca operações atômica
      Tipos
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      Types
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      Macros
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      Funções
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      <tbody> </tbody>
      Definido no cabeçalho <stdatomic.h>
      C atomic_exchange( volatile A* obj, C desired );
      		 (1)
      C atomic_exchange_explicit( volatile A* obj, C desired, memory_order order );
      		 (2)

      Atomically replaces the value pointed by obj with desired and returns the value obj held previously. The operation is read-modify-write operation. The first version orders memory accesses according to memory_order_seq_cst, the second version orders memory accesses according to order.

      Esta é uma função genérica definida para todos os tipos de objectos atómicos. A é o tipo de um objeto atômico, C é do tipo não-atômica correspondente a A.
      Original:
      This is a função genérica defined for all atomic object types. A is the type of an atomic object, C is the non-atomic type corresponding to A.
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      Parâmetros

      obj -
      ponteiro para o objeto atômico modificar
      Original:
      pointer to the atomic object to modify
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      desired - the value to replace the atomic object with
      order -
      a sincronização da memória de ordenação para esta operação: todos os valores são permitidos
      Original:
      the memory synchronization ordering for this operation: all values are permitted
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      Valor de retorno

      O valor realizado anteriormente ser objeto atômico apontado por obj.
      Original:
      The value held previously be the atomic object pointed to by obj.
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      Veja também

      (C11)
      swaps um valor com o objeto atômico se o valor antigo é o que se espera, caso contrário, lê o valor antigo
      Original:
      swaps a value with the an atomic object if the old value is what is expected, otherwise reads the old value
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      (função) [edit]
      C++ documentation for atomic_exchange, atomic_exchange_explicit