an error I just can't crack

[MrNotToSmartGuy]

I am getting the following error.

"Types of actual and formal var parameters must be identical" I was wondering if someone would be able to comment on the error and help me out a bit more. I just can't seem to get this thing right.

MrNotTooSmartGuy

[Johnny_Bit]

simple yet rather hard to find.

let's say you have something like that:

Code: Select all


procedure surprise( var X: cardinal )


and then try something like:

Code: Select all


var
  Y: integer;
begin
  surprise( Y );
end;


you'll get that error. you know why? in this example Y isn't cardinal.

what I did? hardcore types?

[Kambiz]

In addition to what Johnny_Bit said, in the above example, calling surprise function with a constant parameter causes the same problem. It's because the parameter needs to be passed as reference and should be variable.

[MrNotToSmartGuy]

Thanks guys for the help. The error was that it should have been passed by reference. It works now. Thanks