Simple hastable question

[Geshishouhu]

Hey all. What are the limits of "parent key" and "child key"?
For example:

native SaveReal takes hashtable table, integer P, integer C, real value returns nothing

What are the limits of "P" and "C"? I know P can be a large number, how about C?
Thanks all.

 

[deathismyfriend]

parent key is -2147483648 to 2147483647
child key is -2147483648 to 2147483647

 

[Geshishouhu]

parent key is -2147483648 to 2147483647
child key is -8191 to 8191 ( i believe)

Thanks, DIMF. +Rep

 

[deathismyfriend]

No problem. Don't quote me on the child keys length though.

Easy way to test it is try to save data to it and a 0 in child key. If both return same value then you are over the limit.

I believe anything that is past the hashtables limits is set to 0

Example: Parent key = 10 and child key = 10,000,000 ( 10m)
save 2000 or something like that to that child key then save a lower number to the same hashtable with childkey of 0.
Then try to load both and see. Both numbers should be the same. ( over the limit gets set to 0)
It may also crash i am not sure.

 

[Geshishouhu]

No problem. Don't quote me on the child keys length though.

Easy way to test it is try to save data to it and a 0 in child key. If both return same value then you are over the limit.

I believe anything that is past the hashtables limits is set to 0

Example: Parent key = 10 and child key = 10,000,000 ( 10m)
save 2000 or something like that to that child key then save a lower number to the same hashtable with childkey of 0.
Then try to load both and see. Both numbers should be the same. ( over the limit gets set to 0)
It may also crash i am not sure.

Ok, I will test it tomorrow.
Thank you.

 

[deathismyfriend]

Let me know the results if you don't mind. And no problem

 

[chobibo]

child key is -8191 to 8191 ( i believe)

I'm sure it's not that, I remember using it to store handle id's on a map.

EDIT: Wait, lemme check.

function F001 takes nothing returns nothing
    call BJDebugMsg(I2S(LoadInteger(udg_HT,0,GetHandleId(GetExpiredTimer()))))
endfunction

function InitTrig_Test takes nothing returns nothing
    set udg_HT=InitHashtable()
    call SaveInteger(udg_HT,0,GetHandleId(udg_Timer),1001)
    call TimerStart(udg_Timer,1.0,false,function F001)
endfunction

This prints "1001" on screen.

Attached the map too.

 

[deathismyfriend]

You did not test how i said though.

Try this.

function F001 takes nothing returns nothing
    call BJDebugMsg(I2S(LoadInteger(udg_HT,0,GetHandleId(GetExpiredTimer()))))
    call BJDebugMsg(I2S(LoadInteger(udg_HT,0,0))))
endfunction

function InitTrig_Test takes nothing returns nothing
    set udg_HT=InitHashtable()
    call SaveInteger(udg_HT,0,GetHandleId(udg_Timer),1001)
    call SaveInteger(udg_HT,0,0,5000)
    call TimerStart(udg_Timer,1.0,false,function F001)
endfunction

As i said above i believe the child key returns to 0 when it is over the 8191 key range.

 

[chobibo]

prints out:

1001
5000

Screenshot

 

[BPower]

As far as I remember you are working yourself into vJass.
When dealing with hashtables this resource is very powerful and easy to use --> NewTable.

Probably every map, which is not fully written in GUI uses Table (either Bribe's or Vexorian's).

 

[deathismyfriend]

Ok then i forget the limit of the childkey. Thanks for the update.

Edit: Both child and parent keys have can go from -2147483648 to 2147483647

Edited above post to reflect correct answer. Thanks guys.

 

[Geshishouhu]

As far as I remember you are working yourself into vJass.
When dealing with hashtables this resource is very powerful and easy to use --> NewTable.

Probably every map, which is not fully written in GUI uses Table (either Bribe's or Vexorian's).

Yes, I am learning vJass. I will start using use Bribe's table.
Thanks. +Rep

Ok then i forget the limit of the childkey. Thanks for the update.

Edit: Both child and parent keys have can go from -2147483648 to 2147483647

Edited above post to reflect correct answer. Thanks guys.

Yes, the result matches your statement.
Thanks.

 

[sethmachine]

As far as I remember you are working yourself into vJass.
When dealing with hashtables this resource is very powerful and easy to use --> NewTable.

Probably every map, which is not fully written in GUI uses Table (either Bribe's or Vexorian's).

What is the advantage of using this custom built Table over the HashTable that comes with JASS?

I am reading through the post, but its functionality looks the same.

 

[deathismyfriend]

The advantage is the size. Basically with table you use one hashtable then split it into sections.

Those sections are normal one hashtable each when doing GUI or JASS. But since it splits up one you don't have to worry about hitting the hastable limit.

 

[Zeatherann]

Table uses clever coding to segment out the 'slots' you can save data to. Using a hashtable means you have to manage this yourself if you use the hashtable across different systems/spells.