Date: Tue, 25 Feb 1997 21:42:43 +0100
From: chojnacki <s709 AT ernie DOT icslab DOT agh DOT edu DOT pl>
Message-Id: <199702252042.VAA04335@ernie.icslab.agh.edu.pl>
To: djgpp AT delorie DOT com
Subject: strange thing with exit(0)

I've encountered very strange something.
After compiling enclosed below code with:
gcc -o foo foo.c
program hangs in function exit() ("Hello!" is printed).
Function flushKeyboard is guilty but I don't know why.
The more strange thing is that program hangs only if
the name of the coff file is three characters long.
If I rename "foo" for e.g. "foo1" and run "go32 foo1"
everything is O.K.
I found also that if I remove line:
SHELL=C:\COMMAND.COM C:\ /E:2000 /P
from my config.sys file program works fine.
I use gcc version 2.6.3 and go32 version 1.12 maint4
and work on DOS 7.0 (Windows 95 MS-DOS mode).
In WINDOWS MS-DOS BOX it works always fine.
Can anyone explain what happens?
Is there any other way to empty keyboard buffer?


#include <stdio.h>
#include <dpmi.h>
void  main()
{
int c;
void  flushKeyboard(void);
  c=getch();
  flushKeyboard();
  printf("Hello!");
  exit(0);
}
void  flushKeyboard()
{
_go32_dpmi_registers r;
  r.h.ah=0x0c;
  r.h.al=0;
  _go32_dpmi_simulate_int(0x21,&r);
}

----------------------
Tom Chojnacki
s709 AT icslab DOT agh DOT edu DOT pl
----------------------