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Typically, polymorphism occurs when there is a hierarchy of classes and they are related by inheritance.
This is followed by the datatype of the variable.
N Stringize The stringize or number-sign operator, when used within a macro definition, converts a macro parameter into a string constant.If the specified identifier is defined, the value is true (non-zero).Predefined Macros ansi C defines a number of macros.This varies based on the type of the variable.H @interface MTViewController : UIViewController @property NSArray *fruits; @end.
Properties are used to provide access to class instance variables in other classes.
1 bit flags can be compacted.
You can convert values from one type to another explicitly using the cast operator as follows: (type_name) expression In Objective-C, we generally use CGFloat for doing floating point operation, which is derived from basic type of float in case of 32-bit and double in case.It must be the first nonblank character, and for readability, a preprocessor directive should begin in first column.There are private methods, which are written with the help of extensions, which we will learn in upcoming chapters.If you need to add psp oyunlarд indir tek link iso a method to an existing class, perhaps, to add functionality to make it easier to do something in your own application, the easiest way is to use a category.User Info: The userInfo dictionary for the error and userInfo may be nil.Polymorphism handles the switching of methods between the base class and derived class based on the method implementation of the two classes.This existing class is called the base class, and the new class is referred to as the derived class.