not 0

14 Oct 2004

      GPC accepts:

	var	i: integer value not 0;

but it doesn't accept:

	var	w: word value not 0;

	not.pas:4: error: constant out of range
	not.pas:4: error: initial value is of wrong type

so, the workaround is:

	var w: word value not word( 0);

At first sight, this looks a bit clumsy (but at second sight it may 
not). It gives rise to general questions about the type of constants in 
Pascal, e.g.

* is there a difference between $FF.. and $0FF.. ?
* is $FF.. signed or not ?

Any comments ?

Regards,

Adriaan van Os