sleep function in c

The sleep function in C is used to pause the execution of a program for a specified number of seconds. Here is an explanation of each step involved in using the sleep function:

  1. Include the necessary header file: To use the sleep function, you need to include the <unistd.h> header file in your program. This header file contains the declaration of the sleep function.

  2. Call the sleep function: To pause the execution of your program, you need to call the sleep function and pass the number of seconds you want to pause as an argument. For example, if you want to pause the program for 5 seconds, you would call sleep(5).

  3. Program execution pauses: When the sleep function is called, the program execution pauses for the specified number of seconds. During this time, the program does not perform any further actions.

  4. Program execution resumes: After the specified number of seconds have passed, the program execution resumes from the point immediately after the sleep function call.

It is important to note that the sleep function may not pause the program for an exact number of seconds due to system-specific factors. The actual sleep time may be slightly longer or shorter than the specified time.

Here is an example of using the sleep function to pause the program for 3 seconds:

#include <unistd.h>

int main() {
    // Pause the program for 3 seconds
    sleep(3);

    // Program execution resumes after 3 seconds
    // Continue with the rest of the program
    return 0;
}

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