std::this_thread::sleep_for - cppreference.com
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      std::this_thread::sleep_for

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      C++
       
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      Threads
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      Threads
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      (C++11)
      this_thread namespace
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      this_thread namespace
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      (C++11)
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      Exclusão mútua
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      Mutual exclusion
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      (C++11)
      (C++11)
      Gestão de bloqueio genérico
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      Generic lock management
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      (C++11)
      (C++11)
      (C++11)(C++11)(C++11)
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      Variáveis ​​de condição
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      Condition variables
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      Futuros
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      Futures
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      <tbody> </tbody>
      Definido no cabeçalho <thread>
      template< class Rep, class Period > void sleep_for( std::chrono::duration<Rep,Period> sleep_duration );
      		 (desde C++11)
      Bloqueia a execução da thread atual para pelo menos o sleep_duration especificado.
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      Blocks the execution of the current thread for at least the specified sleep_duration.
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      Chamadas para sleep_for pode bloquear por mais de sleep_duration se o sistema operacional subjacente não suporta a granularidade especificada pelo sleep_duration.
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      Calls to sleep_for may block for longer than sleep_duration if the underlying operating system does not support the granularity specified by sleep_duration.
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      Parâmetros

      sleep_duration -
      tempo de duração para dormir
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      time duration to sleep
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      Valor de retorno

      (Nenhum)
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      (none)
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      Exceções

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

      Exemplo

      #include <iostream>
#include <chrono>
#include <thread>

int main()
{
    std::cout << "Hello waiter" << std::endl;
    std::chrono::milliseconds dura( 2000 );
    std::this_thread::sleep_for( dura );
    std::cout << "Waited 2000 ms\n";
}

      Saída: 

      Hello waiter
Waited 2000 ms

      Veja também