Sleep Function Not Working

khalilov

Nov 8 2008, 03:34 PM

CODE

/* sleep example */

#include <dos.h>
#include <stdio.h>

int main(void)
{
   int i;

   for (i=1; i<5; i++)
   {
      printf("Sleeping for %d seconds\n", i);
      sleep(i);
   }
   return 0;
}

I have turbo C++, i found this in its help file shouldn't it work?, when i run it i get:

CODE

Compiling NONAME00.CPP:
Error NONAME00.CPP 8: Call to undefined function 'sleep' in function main()

I tried library <time.h>, doesn't work. In which library is sleep() function?

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yordan

Nov 8 2008, 07:16 PM

try msleep instead of sleep.
See for instance here : http://www.handyboard.com/software/icmanual/node86.html

QUOTE

void msleep(long msec)

Waits for an amount of time equal to or greater than msec milliseconds. msec is a long integer.

Example:

/* wait for 1.5 seconds */
msleep(1500L);

Be careful, the argument of msleep is milliseconds, so you have to change your code.
By the way, why do you want to put it in a loop ?
Do you really want to
. sleep 1 second, then
. sleep 2 seconds, then
. sleep 3 seconds, then
. sleep 4 seconds ?
Why do you not directly sleep 10 seconds ?

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khalilov

Nov 9 2008, 11:03 AM

CODE

Compiling NONAME00.CPP:
Error NONAME00.CPP 5: Call to undefined function 'msleep' in function main()

As for why i made that loop i just copied and pasted it =), thats how its mentioned in the help files. And it doesn't work XD

EDIT: btw i have borland turbo C++ version 4.5 if it helps, but i doubt it since like i said its mentioned in the help files and there for it must exist in this version

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zorba4

Nov 10 2008, 10:34 AM

Seems that some libraries are missing, either physically not installed or need to be #included.
Also, the msleep functions has different meanings, depending from the C version you use. This intruduces the accurante moment to talk a bout the portability guide, which defines the way of writing programs in such a way that they can be compiled on all ansi C compliant compilers.

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khalilov

Nov 10 2008, 05:19 PM

meh, i'll just 5.2. Iam guessing the fact that i got the program along with like 50 others for 1$ didn't help either:P. Even though the library exists its probably missing some functions.

Thanks guys.

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