Warp wrote:
> Darren New <dne### [at] sanrrcom> wrote:
>>>> My point is that if you do
>>>> a = 5; b = a; a = 7;
>>>> you're not changing the value in b.
>>>   Of course you are. You are changing it to 5.
> 
>> Right. You're not changing the value in b when you assign 7 to a.
> 
>   Uh? That's because you are changing the value of a, not the value of b.

Yes! Precisely. You're not changing the value of 5. You're changing the 
value of 'a'.

Contrast with
a = " hello  "; b = a;  a.trim();

Whether you changed 'b' depends on whether string literals have value or 
reference semantics. *Unless* strings are read-only, in which case a.trim() 
returns a new string which gets discarded.

-- 
   Darren New, San Diego CA, USA (PST)
   There's no CD like OCD, there's no CD I knoooow!

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