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      std::atomic_flag_clear, std::atomic_flag_clear_explicit

      De cppreference.com

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      <metanoindex/>

       
      C++
       
      Biblioteca operações atômica
      Tipos
      Original:
      Types
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      (C++11)
      (C++11)
      Funções
      Original:
      Functions
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      (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
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      (C++11)
      (C++11)(C++11)
      (C++11)(C++11)
      Inicialização
      Original:
      Initialization
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      (C++11)
      (C++11)
      (C++11)
      Memória de encomenda
      Original:
      Memory ordering
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      (C++11)
      (C++11)
      (C++11)
      (C++11)
       
      <tbody> </tbody>
      Definido no cabeçalho <atomic>
      void atomic_flag_clear( volatile std::atomic_flag* p );
      		 (1) (desde C++11)
      void atomic_flag_clear( std::atomic_flag* p );
      		 (2) (desde C++11)
      void atomic_flag_clear_explicit( volatile std::atomic_flag* p, std::memory_order order )
      		 (3) (desde C++11)
      void atomic_flag_clear_explicit( std::atomic_flag* p, std::memory_order order )
      		 (4) (desde C++11)

      Atomically changes the state of a std::atomic_flag pointed to by p to clear (false).

      Parâmetros

      p -
      ponteiro para std::atomic_flag acessar
      Original:
      pointer to std::atomic_flag to access
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      order - the memory sycnhronization ordering for this operation: only std::memory_order_relaxed, std::memory_order_consume, std::memory_order_acquire, or std::memory_order_seq_cst are permitted.

      Valor de retorno

      nenhum.
      Original:
      none.
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      Exceções

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

      Possível implementação

      First version 
      void atomic_flag_clear(volatile std::atomic_flag* p) 
{
    p->clear();
}
      Second version 
      void atomic_flag_clear(std::atomic_flag* p) 
{
    p->clear();
}
      Third version 
      void atomic_flag_clear_explicit(volatile std::atomic_flag* p, 
                                std::memory_order order) 
{
    p->clear(order);
}
      Fourth version 
      void atomic_flag_clear_explicit(std::atomic_flag* p, 
                                std::memory_order order) 
{
    p->clear(order);
}

      Veja também

      (C++11)
      o lock-livre tipo boolean atômica
      Original:
      the lock-free boolean atomic type
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      (classe) [edit]
      (C++11)
      (C++11)
      atomicamente define o sinalizador para true e retorna seu valor anterior
      Original:
      atomically sets the flag to true and returns its previous value
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      (função) [edit]
      (C++11)
      define restrições de memória de encomenda para a operação dada atômica
      Original:
      defines memory ordering constraints for the given atomic operation
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      (typedef) [edit]
      Documentação C para atomic_flag_clear, atomic_flag_clear_explicit