How to Pause Execution in C for a Specified Duration?

Sleep Function in C

Problem:

In C , how can you pause a program for a specified duration in milliseconds, similar to Sleep(time); in other languages?

Header and Function Signature:

To facilitate sleeping in C , include the and headers. The function to use is:

<code class="cpp">std::this_thread::sleep_for(std::chrono::milliseconds timespan);</code>

Solution:

To pause the program for a specific amount of time, use the following syntax:

<code class="cpp">std::chrono::milliseconds timespan(111605); // or any desired time
std::this_thread::sleep_for(timespan);</code>

Historical Sleep Functions:

Prior to C 11, C lacked thread and sleep capabilities. The following platform-dependent solution was utilized:

<code class="cpp">#ifdef _WIN32
    #include <windows.h>

    void sleep(unsigned milliseconds)
    {
        Sleep(milliseconds);
    }
#else
    #include <unistd.h>

    void sleep(unsigned milliseconds)
    {
        usleep(milliseconds * 1000); // takes microseconds
    }
#endif</code>

Alternatively, a simpler pre-C 11 option was to use boost::this_thread::sleep.

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