See section 3.5.1 of the C# language specification. The relevant text is this: Private, which is selected by including a private modifier in the member declaration. The intuitive meaning of private is “access limited to the containing type”. Note that the modifier is relevant to the type, not the instance. And then further in section … Read more
Because, as Bjarne puts it, C++ is designed to protect against Murphy, not Machiavelli. In other words, it’s supposed to protect you from accidents — but if you go to any work at all to subvert it (such as using a cast) it’s not even going to attempt to stop you. When I think of … Read more
If the InnerEvenIterator class does not extend any class or implement any interface, I think it is nonsense because no other class can access any instance of it. However, if it extends or implements any other non private class or interface, it makes sense. An example: interface EvenIterator { public boolean hasNext(); } public class … Read more
It’s partly to prevent accidental internal attribute access. Here’s an example: In your code, which is a library: class YourClass: def __init__(self): self.__thing = 1 # Your private member, not part of your API In my code, in which I’m inheriting from your library class: class MyClass(YourClass): def __init__(self): # … self.__thing = “My thing” … Read more
If you want to selectively hide functions from B it does not make much sense to use public inheritance in the first place. Use private inheritance & selectively bring methods from B into the scope of A: struct B{ void method1(){}; void method2(){}; }; struct A : private B{ using B::method1; }; A a; a.method1(); … Read more
Here’s a convention you can use in EF 6+ to map selected non-public properties (just add the [Column] attribute to a property). In your case, you’d change TypeId to: [Column] private int TypeId { get; set; } In your DbContext.OnModelCreating, you’ll need to register the convention: protected override void OnModelCreating(DbModelBuilder modelBuilder) { modelBuilder.Conventions.Add(new NonPublicColumnAttributeConvention()); } … Read more
Good question. The point is that protection in C++ is class level, not object level. So a method being invoked on one object can access private members of any other instance of the same class. This makes sense if you see the role of protection being to allow encapsulation to ensure that the writer of … Read more
sizeof(SomeStruct) != sizeof(SomeStructSource). This will cause someone to find you and murder you someday.
No. Privateness in JavaScript can only be done by scoping (and exporting from them: closures). Those functions that need to access the private variables (and functions), called privileged methods need to be defined inside the constructor. Those methods that don’t (which only interact with public properties or other methods) should be defined on the prototype … Read more
No, the private member are not inherited because the scope of a private member is only limited to the class in which it is defined. Only the public and protected member are inherited. From the Java Documentation, Private Members in a Superclass A subclass does not inherit the private members of its parent class. However, … Read more