My Kingdom For ...

[Ary Borenszweig]

Janice Caron escribió:
> On 21/02/2008, Ary Borenszweig <ary at esperanto.org.ar> wrote:
>>>>  It must only be an error if c is a class reference. If it's a pointer,
>>  >>  it's ok
>>
>>> Why? if (p is null) works for pointers too
>> That's what I said: "If it's a pointer, it's ok" (don't show a
>>  warning/error). Or are you saying something completely different?
> 
> I guess I was. I suppose I was saying, let's make "== null" illegal
> for /all/ types. "== null" just isn't needed, because in /all/ cases,
> "is null" works.

That's even better than an error. :-)

But programmers are used to use "==" for comparisons with null... 
Another alternative would be for the compiler to rewrite "== null" as 
"is null", always.