🚀 go-pugleaf

roland@cochise.pcs.com (Roland Rambau) writes:
>hcj@lzsc.ATT.COM (HC Johnson) writes:
>->> >    #define MAX  -32768
>->> >    main()
>->> >    {
>->> >    printf("1: %d\n", MAX);
>->> >    printf("2: %d\n", (int)MAX);
>->> >    }
>->> 
>->> This is not a bug, its a feature.  MAX is not a number, its an expression.
>->> Thus, the evaluation of MAX is a long int.  The first printf only prints
>->K&R specify that constants are int's.  Not a long int.

Like I said "MAX is not a number, its an expression."  There is an integer
in the expression (the number 32768).  But there is also an operator (the
unary minus).  This makes MAX an expression, not a number.  Thus the real
question is what does K&R say integer expression are evaluated to?  I
don't have K&R handy, but I believe it says long ints.

Eric
ericco@ssl.berkeley.edu

Eric
ericco@ssl.berkeley.edu