add indents; sleep() takes seconds (not ms, https://man7.org/linux/man-pages/man3/sleep.3.html)

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edit approved Aug 20, 2021 at 21:59

103
2

I need to wait for short intervals of time in my program, but I really don't want to include unistd.h just to use sleep, so I'm doing it this way:

int main()
{
    for(int i=0; i<=100000000000; i++); // <----- note that the loop doesn't do anything 
    return 0;
}

I do this when I don't really have a specific interval to set for sleep.

Is there anything wrong with this? Would this harm the program in any way?

In C I know that if I did include unistd.h, and that if I used sleep(), that the following code would also make the program wait for a short interval of time:

int main()
{
    sleep(20002); //or whatever the number (in millisecondsseconds)
    return 0;
}

I need to wait for short intervals of time in my program, but I really don't want to include unistd.h just to use sleep, so I'm doing it this way:

int main()
{
for(int i=0; i<=100000000000; i++); // <----- note that the loop doesn't do anything 
return 0;
}

I do this when I don't really have a specific interval to set for sleep.

Is there anything wrong with this? Would this harm the program in any way?

In C I know that if I did include unistd.h, and that if I used sleep(), that the following code would also make the program wait for a short interval of time:

int main()
{
sleep(2000); //or whatever the number (in milliseconds)
return 0;
}

I need to wait for short intervals of time in my program, but I really don't want to include unistd.h just to use sleep, so I'm doing it this way:

int main()
{
    for(int i=0; i<=100000000000; i++); // <----- note that the loop doesn't do anything 
    return 0;
}

I do this when I don't really have a specific interval to set for sleep.

Is there anything wrong with this? Would this harm the program in any way?

In C I know that if I did include unistd.h, and that if I used sleep(), that the following code would also make the program wait for a short interval of time:

int main()
{
    sleep(2); //or whatever the number (in seconds)
    return 0;
}

edited title

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edited May 6, 2018 at 18:37

Jamal

35.2k
13
134
238

Using a for-loop instead ofor sleeping? to wait for short intervals of time

Tweeted twitter.com/#!/StackCodeReview/status/443653503982907393

occurred Mar 12, 2014 at 7:43

Post Reopened by 200_success, CommunityBot, rolfl, Vogel612, Jeff Vanzella

occurred Mar 10, 2014 at 16:26

Make the actual code being used the focus of the question. The sleep() code is a by-the-way

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edited Mar 10, 2014 at 11:59

rolfl

98.1k
17
220
419

In C, using sleep() would make the programI need to wait for a short intervalintervals of time:

int main()
{
sleep(2000); //or whatever the number (in milliseconds)
return 0;
}

But in my program, but I really don't want to include unistd.h just to use sleep, so I'm doing it this way:

int main()
{
for(int i=0; i<=100000000000; i++); // <----- note that the loop doesn't do anything 
return 0;
}

I do this when I don't really have a specific interval to set for sleep.

Is there anything wrong with this? Would this harm the program in any way?

In C I know that if I did include unistd.h, and that if I used sleep(), that the following code would also make the program wait for a short interval of time:

int main()
{
sleep(2000); //or whatever the number (in milliseconds)
return 0;
}

In C, using sleep() would make the program wait for a short interval of time:

int main()
{
sleep(2000); //or whatever the number (in milliseconds)
return 0;
}

But I really don't want to include unistd.h just to use sleep, so I'm doing it this way:

int main()
{
for(int i=0; i<=100000000000; i++); // <----- note that the loop doesn't do anything 
return 0;
}

I do this when I don't really have a specific interval to set for sleep.

Is there anything wrong with this? Would this harm the program in any way?

I need to wait for short intervals of time in my program, but I really don't want to include unistd.h just to use sleep, so I'm doing it this way:

int main()
{
for(int i=0; i<=100000000000; i++); // <----- note that the loop doesn't do anything 
return 0;
}

I do this when I don't really have a specific interval to set for sleep.

Is there anything wrong with this? Would this harm the program in any way?

In C I know that if I did include unistd.h, and that if I used sleep(), that the following code would also make the program wait for a short interval of time:

int main()
{
sleep(2000); //or whatever the number (in milliseconds)
return 0;
}

I think this would make it on topic

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edit approved Mar 9, 2014 at 12:45

user37389

175
1
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Post Closed as "Not suitable for this site" by 200_success, Michael Urman, Jamal

occurred Feb 23, 2014 at 18:06

Question Protected by rolfl

occurred Feb 23, 2014 at 16:10

added 4 characters in body

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edited Feb 22, 2014 at 22:14

Jamal

35.2k
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Better title.

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edited Feb 22, 2014 at 21:55

syb0rg

21.9k
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added 2 characters in body; edited title

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edited Feb 22, 2014 at 21:24

Jamal

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added 5 characters in body

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edited Feb 22, 2014 at 15:04

Mohammad

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asked Feb 22, 2014 at 14:58

Mohammad

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Using a for-loop instead ofor sleeping? to wait for short intervals of time