From: "M. Edward (Ed) Borasky" <znmeb@...>
Date: 2006-10-07T00:57:30+09:00
Subject: Re: [FEATURE REQUEST] C#'s ?? Operator

Martin Coxall wrote:
>> Do you mean making (a ?? b) as shorthand for (a.nil? ? a : b)?
>> I'm not sure it is handy enough to add new operator (yet).
>>
> 
> I think the point he was trying to make was that (a ?? b) can be
> written (a || b) in languages where nil/null==false.
> 
> I think that's fine for duck typed languages, but it's not for
> statically typed languages.
> 
> if (null) {...} is a syntax error in Java and C#. Works in C++ though,
> which kind of proves my point.
> 
> Martin
> 
> 

Speaking of which:

1. 'nil' and 'false' behave as false in Ruby; everything else behaves as
true,
2. 'nil' and (something else whose name I've forgotten) behave as false
in Lisp, everything else behaves as true,
3. Only '#f' behaves as false in Scheme, everything else, including
'nil', behaves as true,
4. The "R" dialect of the "S" language has a different behavior, as do
other dialects of the "S" language, and the two dialects differ.

**BAH** **BAH** !!