[Coco] [Color Computer] Update: Inkey for Microware C...

[Mannequin*]

Here is the code that Mike sent:

char inkey() {
  char ch;

  fflush(stdout);   /* needed if you're using bufrered I/O anywhere in
                       the prog */
  if( getstat(1, 0))      /* 2nd arg must be the I/O
                             channel (0==stdin) */
    return(0);
  read(0, 1, &ch);        /* caution-- check argument order here */
  return(ch);
}

I did see one thing that Mike pointed out in his comments. He needed to
rearrange the arguments in the read function:

read (0, &ch, 1);

Anyway, I've implemented that code in to a small test file:

/* myconio.c: Test of inkey () function. */

#include <stdio.h>   /* For fflush () and other I/O functions.*/
#include <sgstat.h>  /* For the getstat () function. */

int inkey (void)     /* Yeah, I changed it from a char to int return. */
{
  char ch;

  fflush (stdout);
  if (getstat (1, 0))
    return 0;
  read (0, &ch, 1);
  return ch;
}

int main (void)
{
  char ch = '\0';

  while ((ch = inkey ()) != 35)   /* 35 = '#'; My fake-EOF character. */
  {
    if (ch != 0)                                           /* Or NULL */
      printf ("ch = %c = %i\n", ch, ch);
  }

  return 0;
}

So, when I compile and run this, it always prints the character I typed
in before it hits the printf () function. Here's an example:

OS9: myconio
fch = f = 102
#
OS9: 

So how do I go about defeating this?

Thanks in advance!
- Mannequin*

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