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From: "Rod Pemberton" <dont_use_email@xnohavenotit.cnm>
Newsgroups: comp.lang.forth
Subject: Re: PICK changed from 1-based to 0-based?
Date: Fri, 03 Jan 2014 08:04:03 -0500
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On Fri, 03 Jan 2014 05:34:53 -0500, Hans Bezemer  
<the.beez.speaks@gmail.com> wrote:
> Rod Pemberton wrote:

>> In C, logical "true" is "not false", where "false" is
>> zero.  That applies for all versions of C.
>
> As usual,

As usual ... ?

Anton said "true=1" in C.  That's simply not true.  (pun intended)

> you forget to mention that C has (I repeat it again) full logical  
> STANDARDIZED operators like && and ||

This has no bearing on the issue.  What I stated above
is true for && and || as well.  The INPUTS to && and ||
are false (0) or true (not false).  The OUTPUTS are
false (0) or true (1).  true (1) is still not false.

> so it doesn't care what value "true"

Exactly, only "false" (zero) is of concern to C.
That is what I stated which you took objection to.

> Furthermore, what do you think this renders?
>
> #include <stdio.h>
> void main (void)
> {
>   printf ("%d\n", 2 == 2);
> }
>
> Right: 1.
>

That doesn't prove true in C is one.  That only proves
that '==' generates a well qualified flag in C for true,
using 1 for true.

#include <stdio.h>

int main(void)
{
   int i;
   for(i=0;i<256;i++)
   {
     if(i)
       printf("true %d\n",i);
     else
       printf("false %d\n",i);
   }

return(0);
}

See, 1, 2, 3, ... etc are all true too.
So, how is "true=1" ... ?


Rod Pemberton