From: kccheng AT hep2 DOT phys DOT sinica DOT edu DOT tw (Kuang-Chun Cheng)
Newsgroups: comp.os.msdos.djgpp
Subject: delay() problem
Date: 14 Dec 1996 10:28:01 GMT
Organization: Computing Center, Academia Sinica
Lines: 27
Message-ID: <58tvfh$l4o@gate.sinica.edu.tw>
NNTP-Posting-Host: kccheng AT hep2 DOT phys DOT sinica DOT edu DOT tw
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

Hi,

     The delay() declared at dos.h does not work very well on the following
codes,

     #include <dos.h>
     #include <iostream.h>
     void main()
     {
         int count=0;
         for(;;)
         {
             delay(1);
             cout << ++count << "\r"; cout.flush();
         }
     }

At the beginning, the number change very quickly (this is normal, since delay
1/1000 sec per count).  However, after running this code for a while (about
30 sec), the counting rate slow down a lot (looks like delay(1) will delay
1/5 sec).  After this happened, the delay() never run normally anymore. 
I must reboot the system to get the correct delay() rate for about 30 sec
and then it slow down again.   Does anyone have similar behavior???  What's
wrong here???   Thanks a lot.

     Kuang-chun Cheng
     kccheng AT hep2 DOT phys DOT sinica DOT edu DOT tw