use if with NSinteger?

问题

I WANT to use NSinteger variable *strength in my code with if condition but it's not work.. :(

if(strength == 11){
}

How can i use if with NSInteger*

回答1:

NSInteger is a primitive value type; you don't really need to use pointers. So your declaration should read

NSInteger strength;

And not

NSInteger *strength;

However if you do need to use a pointer to an NSInteger (that is, NSInteger *) for some reason, then you need to dereference the pointer to get the value:

if (*strength == 11) {
}

but from what I see, I don't think this is the case.

回答2:

I assume you must be adding an * when you declare your strength variable. You shouldn't have it because NSInteger is a primitive type.

Why don't I declare NSInteger with a *

来源：https://stackoverflow.com/questions/4791175/use-if-with-nsinteger