926
Subj : choiceyn: cut down choice command, use of sleep, kbhit and getch
To   : borland.public.cpp.borlandcpp
From : "frank spencer" <no_spam@all>
Date : Mon Jan 12 2004 05:16 pm

Hello,

I have put this short program together and would like constructive comments
on what improvements could be made.

It works like the choice.com command on win98 with no parameters.

I am particularly concerned about  the use of sleep, kbhit and getch but any
other errors found would be appreciated.
It seems to work but  I'm guessing there are some naive assumptions in
there.

Thanks in advance for any help given

Hal
/*__________________________________________________________________________
_*/
/*__________________________________________________________________________
_*/
/*
 * choiceyn.c - emulates Win98's choice.com (with no parameters)
 * no warranty whatsoever given or implied.
 *
 * Hal Styli, 2004.
 */

#include <stdio.h>

#ifdef _MSC_VER
 #include <conio.h>
 #include <windows.h>
 #define KBHIT()  _kbhit()
 #define GETCH()  _getch()
 #define SLEEPX(s) Sleep((s)*1000)
#elif defined( __BORLANDC__ )
 #include <conio.h>
 #define KBHIT()  kbhit()
 #define GETCH()  getch()
 #define SLEEPX(s) _sleep(s)
#else
 #pragma message( "\n\n* * * U n t e s t e d * * *" )
 #pragma message( "This source has not been tested on this platform/with
this compiler" )
 #include "*** ERROR -- Untested environment ***\n\n"
#endif

#define BEEP '\a'
/*__________________________________________________________________________
_*/
/*__________________________________________________________________________
_*/

int main()
{
    char c;

    putchar('[');
    putchar('Y');
    putchar(',');
    putchar('N');
    putchar(']');
    putchar('?');

    for(;;)
    {
      if (KBHIT())
      {
        c=GETCH();
        if( (c=='Y') || (c=='y') )
    {
      putchar('Y');
      putchar('\n');
      return 1;
    }
 else
 if ( (c=='N') || (c=='n') )
    {
      putchar('N');
      putchar('\n');
      return 2;
    }
 else
     putchar(BEEP);
      }
      else
        SLEEPX(1);
    }
}
/*__________________________________________________________________________
_*/
/*__________________________________________________________________________
_*/

.

0