Dynamic Arrays

[xerafenix]

I was readying the new Unreal Development Kit Game Programming with Unrealscript: Beginner's Guide. I believe I found a mistake when it comes to compiling this array:
//AwesomeActor Sprite
class AwesomeActor extends Actor
placeable; //Allows to be placed into editor
var int TestArray[3];
var array<int> CopyArray;
function PostBeginPlay()
{
TestArray [0]= 9;
TestArray [1]= 5;
TestArray [2]= 6;
CopyArray[CopyArray.length] = TestArray[CopyArray.length 1];
CopyArray[CopyArray.length] = TestArray[CopyArray.length 1];
CopyArray[CopyArray.length] = TestArray[CopyArray.length 1];
`log("Copy array length:" @CopyArray.length);
}
defaultproperties
{
Begin Object Class=SpriteComponent Name=Sprite
Sprite=Texture2D'EditorResources.S_NavP'
HiddenGame=True
End Object
Components.Add(Sprite)
}

The intention was to have CopyArray be a dynamic array but it doesn't compile unless I add a plus or minus symbol. Is there a reason for this? Was their a mistake from the author? or did I miss something?

[RattleSN4K3]

TestArray is a Array. CopyArray is a dynamic array.
To add items to a dynamic array, you use Add or AddItem (or the method you were trying to do).

http://udn.epicgames.com/Three/Unrea...es.html#Arrays
http://udn.epicgames.com/Three/Unrea....html#DynArray

I don't get the intention behind your code. You are changing the CopyArray dynamically and using the length to access a static array. It would result into a "out of bound" error.

    TestArray [0]= 9;
    TestArray [1]= 5;
    TestArray [2]= 6;
    CopyArray[CopyArray.length] = TestArray[CopyArray.length - 1]; // CopyArray[0] = TestArray[0 - 1] // out of bound
    CopyArray[CopyArray.length] = TestArray[CopyArray.length - 1]; // CopyArray[1] = TestArray[1 - 1]
    CopyArray[CopyArray.length] = TestArray[CopyArray.length - 1]; // CopyArray[1] = TestArray[2 - 1]
    `log("Copy array length:" @CopyArray.length);

If you want to copy an array (not a dynamic array) use a for loop and the ArrayCount function.

local int i;
//CopyArray.Empty
CopyArray.Length = 0;
for (i = 0; i<ArrayCount(TestArray); i++) {
   CopyArray.Length[i] = TestArray[i];
}

[unrealloco]

you posted in the wrong forum this forum is for ut3 not udk you should repost in here http://forums.epicgames.com/forums/3...d-Unrealscript