Objective-c从两个NSIntegers中获得最大收益

Question

Now i am getting greatest NSInteger by suing MAX() example

NSInteger x = 10;
NSInteger y = 15;
NSInteger max = MAX(x,y);

But i am interested in why this function only used for int values mainly? And if it is correct to use MAX() for NSIntegers?

Answer 1

The MAX() macro can be used for any two types which can be compared using < (less-than). For C numeric types, the usual rules involving promotion and conversion of type will apply.

Short answer: MAX() works fine for NSIntegers.