Running table.copy to many times makes my app crash

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#1

Hi,

When I run table.copy to many times in a for loop it crashes in one part but not in another. Explanation with code:

when turns, in the for loop is set to 1 or 2 it runs okay but when I increase it to even as little as 5 it crashes. The strange thing is if I move the first three rows (local h1, h2 and b table.copy) outside the loop it works even though I have more table copies below.

The idea is that in h1, h2 and b I have original value from the user and then the app fills up/randomizes the rest of the table so I need them to be their own values (not reference types).

for yCount = 1, turns, 1 do local h1 = table.copy(hand1) local h2 = table.copy(hand2) local b = table.copy(board) h1,h2,b = randomizeCards(h1,h2,b) -- Player1 hands local player1Value local hands = {} hands[1] = table.copy(h1) h1[6] = b[1] hands[2] = table.copy(h1) h1[6] = b[2] hands[3] = table.copy(h1) h1[6] = b[3] hands[4] = table.copy(h1) end 

I have also tried using the shallowcopy and deepcopy function from the LUA page.

The tables are small and contains 5 records and that’s it.

Can somebody help me with this?

Best regards,

Tomas 

#2

I also tried this:

for count = 1, 5, 1 do h1[count] = hand1[count] h2[count] = hand2[count] b[count] = board[count] end

It seems that it can process 4 times without any problem but on the fifth it always crashes.

Maybe some form of memory leak or some referencing still going on?

Best regards,

Tomas

#3

What error message does it give you?

#4

In your code above, you only create 4 entries in your hands[] table.  When you hit 5, it’s nil and likely generating your error.

#5

Hi,

sorry, it was a rookie mistake!

In the code I change a field for the tables, h1[i].occupied = true, and it got stuck in a while loop later in the program as they weren’t updated correctly to do the table.copy.

Thanks for your time!

Best regards,

Tomas

#6

I also tried this:

for count = 1, 5, 1 do h1[count] = hand1[count] h2[count] = hand2[count] b[count] = board[count] end

It seems that it can process 4 times without any problem but on the fifth it always crashes.

Maybe some form of memory leak or some referencing still going on?

Best regards,

Tomas

#7

What error message does it give you?

#8

In your code above, you only create 4 entries in your hands[] table.  When you hit 5, it’s nil and likely generating your error.

#9

Hi,

sorry, it was a rookie mistake!

In the code I change a field for the tables, h1[i].occupied = true, and it got stuck in a while loop later in the program as they weren’t updated correctly to do the table.copy.

Thanks for your time!

Best regards,

Tomas