[chuck-users] Dynamic Arrays (George Locke)

[George Locke]

I was getting a bit frustrated, but it is definitely possible to get this
to work properly.  I had code that did something like

ar.size(siz);
for (0 => int i; i < siz; i++) {
SinOsc s;
s => ar[i];
}

which didn't work, but changing it to "s @=> ar[i]" *did* work, which makes
sense, since the interpreter/compiler might reasonably think I was chucking
something to ar[i], a null pointer.

I think my grumbling may have been a bit premature in this case.

Thanks for all the help!

 - George

On Sun, Feb 2, 2014 at 5:27 PM, Stefan Blixt <stefan.blixt at gmail.com> wrote:

> My guess is that it inserts null pointers into the array as you expand it,
> which doesn't feel totally unreasonable. For primitives there's usually
> intuitive default value that the compiler can use, with objects (that need
> allocated resources for their instances, which could be either the declared
> type or a subclass), null is the logical default.
>
>
> On Sun, Feb 2, 2014 at 10:54 PM, George Locke <
> george.locke.maxmsp at gmail.com> wrote:
>
>> that works.  i'm surprised that the .size method doesn't work, tho, since
>> it does work on primitive type arrays.  I guess there's no instantiation
>> happening or something...
>>
>> Thanks!
>>
>>  - George
>>
>>
>> On Sun, Feb 2, 2014 at 4:24 PM, Perry R Cook <prc at cs.princeton.edu>wrote:
>>
>>>    5. how do you resize an object array? (George Locke)
>>>
>>> Here's something that should be useful.
>>> (from the .pdf ChucK Manual, under Dynamic Arrays,
>>> there's more there about it)
>>>
>>>
>>> [64, 65, 60, 59] @=> int notes[];
>>>
>>> notes << 58; // notes is [64, 65, 60, 59, 58]
>>> notes << 60; // notes is [64, 65, 60, 59, 58, 60]
>>>
>>> notes.popBack(); // [64, 65, 60, 59, 58]
>>>
>>> notes << 64 << 65 << 60; // [64, 65, 60, 59, 58, 64, 65, 60]
>>>
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>>
>>
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>
>
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> Release me, insect, or I will destroy the Cosmos!
>
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