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      std::this_thread::sleep_for

      From cppreference.com
      <cpp‎ |thread
       
       
      Concurrency support library
      Threads
      (C++11)
      (C++20)
      this_thread namespace
      (C++11)
      (C++11)
      sleep_for
      (C++11)
      Cooperative cancellation
      Mutual exclusion
      Generic lock management
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      Condition variables
      (C++11)
      Semaphores
      Latches and Barriers
      (C++20)
      (C++20)
      Futures
      (C++11)
      (C++11)
      (C++11)
      Safe reclamation
      Hazard pointers
      Atomic types
      (C++11)
      (C++20)
      Initialization of atomic types
      (C++11)(deprecated in C++20)
      (C++11)(deprecated in C++20)
      Memory ordering
      (C++11)(deprecated in C++26)
      Free functions for atomic operations
      Free functions for atomic flags
       
      Defined in header<thread>
      template<class Rep,class Period>
      void sleep_for(conststd::chrono::duration<Rep, Period>& sleep_duration);
      (since C++11)

      Blocks the execution of the current thread forat least the specifiedsleep_duration.

      This function may block for longer thansleep_duration due to scheduling or resource contention delays.

      The standard recommends that a steady clock is used to measure the duration. If an implementation uses a system clock instead, the wait time may also be sensitive to clock adjustments.

      Contents

      [edit]Parameters

      sleep_duration - time duration to sleep

      [edit]Return value

      (none)

      [edit]Exceptions

      Any exception thrown byclock,time_point, orduration during the execution (clocks, time points, and durations provided by the standard library never throw).

      [edit]Example

      Run this code
      #include <chrono>#include <iostream>#include <thread> int main(){usingnamespace std::chrono_literals; std::cout<<"Hello waiter\n"<<std::flush; constauto start=std::chrono::high_resolution_clock::now();    std::this_thread::sleep_for(2000ms);constauto end=std::chrono::high_resolution_clock::now();conststd::chrono::duration<double,std::milli> elapsed= end- start; std::cout<<"Waited "<< elapsed<<'\n';}

      Possible output:

      Hello waiterWaited 2000.13 ms

      [edit]See also

      stops the execution of the current thread until a specified time point
      (function)[edit]
      Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/thread/sleep_for&oldid=161242"

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