Passing variables into a function

[morngrym]

ok I have a class Player with lots of variables and im gonna call a function to checkXp, if I call it with the whole player object does it use a lot more memory then if I just passed the couple things I need?

ex
checkXP(Player* play) // this is a whole object of player

or

checkXP(play->getXP(), play->getLVL()) // the variables I want.
I just realized I may not be able to modify anything from player in the checkXP() function

question 1: does passing the whole object use more memory
question 2: if I passed as just the variables I need, I wont be able to modify anything of object play?

[Peter87]

morngrym wrote:

question 1: does passing the whole object use more memory

You are not passing the whole object. You are just passing a pointer to the object so it's nothing to worry about.

morngrym wrote:

question 2: if I passed as just the variables I need, I wont be able to modify anything of object play?

Correct, unless you pass the variables by reference or you have some other way to access the object.