[chuck-users] Mixed Object Lists and Hierarchy

[Stefan Blixt]

You can look at casting as something you use to help the compiler when
assigning values to variables that aren't obviously fit to contain them
(like an int for a float variable of a Foo for a Bar variable) - that's
what's common with copying floats and object references. For learning more
about it you can look it up in a Java or C manual, though they'll contain a
bit more than what's needed in ChucK (which doesn't have a lot of primitive
types for starters). I'm a Java fan, so I'd go here:
http://java.sun.com/docs/books/jls/third_edition/html/conversions.html#5.5

/Stefan


2009/12/12 Kassen <signal.automatique at gmail.com>

> 2009/12/12 mike clemow <gelfmuse at gmail.com>
>
>> Hi there,
>>
>> 2009/12/12 Stefan Blixt <stefan.blixt at gmail.com>:
>> > Hmm, you shouldn't have to cast from a subclass to its superclass,
>> should
>> > you?
>>
>> Well, this is my feeling as well.  A foo is-a spam.  The object
>> reference should work fine this way...
>>
>>
> I agree. Back when I was starting out when classes and so on I did feel
> that this functionality was actually implied by the docs. I wonder whether
> that was intentional and that's actually meant to be how it should
> eventually work. This is one area where I do feel that the current docs need
> work. For one thing the "$" operator is only documented in how it casts from
> float to int, which is in and of itself a exception in that it loses
> information, unlike other forms of casting that need not lose information.
>
> Kas.
>
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