From: Martin Ambuhl <mambuhl AT earthlink DOT net>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: BOOL crap :)
Date: Thu, 31 Dec 1998 02:44:17 -0500
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pjotr wrote:
> 
> I recently installed DJGPP along with RHIDE. My problem is, I want to
> use the BOOl type variable in my C programs, but for some reason the
> compiler does not understand it, eventhough RHIDE acknowledges "bool"
> as a valid keyword (e.g. it turns white on screen).
> 
> I tried creating my own BOOL variable type by writing my own header
> file "types.h":
> 
> #ifndef TYPES_H
> #define TYPES_H
> 
> enum BOOL
> {
>     FALSE = 0,
>     TRUE = 1;
> };
> 
> #endif /* TYPES_H */
> 
> But even after this the compiler insists it does not know the BOOL
> type... Any sugestions?

You could learn how to declare a type:
#include <stdio.h>

typedef enum {
    FALSE, TRUE
} BOOL;

int main()
{
    BOOL y[10], i;

    for (i = 0; i < 10; i++)
        y[i] = (i % 2) ? TRUE : FALSE;

    for (i = 0; i < 10; i++) {
        printf("isodd(%d)? BOOL y[%d]=%5s\n",
               i, i, (y[i] == TRUE) ? "TRUE" : "FALSE");
    }
    return 0;
}


The use of i (of type BOOL) as an integer type in the code should
suggest to you that you never needed your BOOL type at all.

-- 
Martin Ambuhl (mambuhl AT earthlink DOT net)
Note: mambuhl AT tiac DOT net will soon be inactive