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From: rokicki@rocky.UUCP
Newsgroups: comp.sys.amiga
Subject: Re: Caveat for Manx C (3.20 and 3.40)
Message-ID: <210@rocky.STANFORD.EDU>
Date: Sat, 21-Mar-87 22:09:06 EST
Article-I.D.: rocky.210
Posted: Sat Mar 21 22:09:06 1987
Date-Received: Sun, 22-Mar-87 16:42:41 EST
References: <477@oscvax.UUCP>
Organization: Stanford University Computer Science Department
Lines: 34
Summary: Another problem

In article <477@oscvax.UUCP>, rico@oscvax.UUCP writes:
> Watch out for this:
> 
> char a[65537];
> int i;
> 
> main()
> {
> 	for (i=0;i<65537;i++) a[i] = i;
> }

Also be careful of constructions like:

char *a ;
unsigned int i ;
test() {
   a[i] ;
}

If i > 32767, you get the wrong value.  Coercing it to a long:

   a[(long)i] ;

doesn't work, either; the compiler throws away the coercion.
The only way I've been able to get it to work is as follows:

char *a ;
unsigned int i ;
long zero = 0 ;
test() {
   a[i+zero] ;
}

-tom