Chess cpp help with rokade

[KeyGen12]

So i have created my chess program , took awhile but i got it, so i have only 2 more "bugs", first of all is the rokade problem , when i do rokade for both players the second king dissapears off the board, and anybody have any idea how to implement the rule en passant ? Any ideas?? i dont rlly like publishing codes.
Thank you all in advance

[TarikNeaj]

if you concentrate all of your energy on trying to telepathically send the code to my brain, I might be able to take a good look at it, but I'm gonna need you to try really hard!