protected members

Directory (?) [-] Overview Characteristics Realize 1 friend function 11 Declarations and definitions 12 Example 2 Friend Class 21 Declarations and definitions 22 Example

Seventh ChapterFunctions are declared before they are called.New and delete can be used to allocate memory and release. Although malloc and free are also reserved, it is not recommended.The general format used by the delete operator is the delete []

University career, involving the scope of the class, inheritance are used by the public common inheritance, at that time did not think so much, feel the common inheritance more convenient, how simple, anyway, there is no too many restrictions,

L A pointer to a constant. Inta; Const int *p1 = &a; P1 is a pointer to a constant INTB; p1= &b; Correct, the value of P1 itself can be changed P1= 1; Compilation error, cannot change the value of the object by P1 L A constant for a pointer type.

1 The visibility of the base class member to the derived class 1. Communal inheritance (public): When a public member of a base class and a protected member are members of a derived class, they remain in their original state, and the private

Since the derived class contains the members of the base class and the derived classes themselves, there is a problem with the relationship and access properties of the two-part members. When you build a derived class, you do not simply use the

Source: http://www.cppblog.com/woaidongmao/archive/2010/07/01/119024.html In C ++, a derived class can access base class members in the following two forms:1. Internal access: Access to members inherited from the base class by new members in the

C ++ experience and experience C ++ experience: I. constructor is never called a virtual function: In the simplest way, the C ++ object model manages virtual functions based on the virtual function table. Therefore, when calling a virtual function,

18 key notes for C ++ Primer Plus 6th, primerplus The following are the notes I have taken after reading C ++ Primer Plus version 6th, which can be used as a memorandum for future review.Note Section Why is the const of C ++ better than that of C #

  Two days ago, a friend learned C # And asked me, isn't Object-oriented Data encapsulation required in C ++? How can this happen? Obviously, encapsulation is broken. Well, I didn't say anything at the time. After reading some information, I found

1. Object-oriented core ideas   Object-oriented introduction:   Construct a software system based on objective things (objects) in the real world, and use human natural thinking methods as much as possible in system construction, emphasizing

1. What are the differences between pointers and references?For: Non-null difference: You cannot use a reference to a null value under any circumstances . A reference must always point to some object. So if you use a variable and point it

C + + provides a means of centralizing the reuse of code. The common inheritance introduced in the 13th chapter establishes is-a relationships so that derived classes can reuse the code of the base class. Private inheritance and protection

Reduce the Compilation Time of C ++ code. C ++ code includesHeader fileAndImplementation FileHeader files are generally provided to other users (also called customers ).Header file changed, No matter how small changes, allReference his filesJustMust

Directory Inheritance of C + + (i) 1. Basic syntax of inheritance 2. Inherited constructors 3, inheritance of the construction order 4. No parameter constructor and default constructor 5. The way of

Here are the notes I made after reading the 6th edition of C + + Primer Plus, as a memo to facilitate review later.Notes section Why is C + + const better than C # # #? First, it can explicitly specify a type and have type checking

C + + language Learning (10)--inheritance and derivation, relationship between classes 1, the combination of classesA combinatorial relationship is the relationship of a whole to a part.Characteristics of the combined relationship:A. Use other

1 in C + +, dynamic binding occurs when a virtual function is called through a reference (or pointer) of a base class, and two conditions (base class reference or pointer, virtual function) are indispensableStatic bindings for default real arguments

In C + +, access control works on, not on per-class basis per-object basis .Important things to say three times, so ...1. In C++ , the access control capability is the nature of the class, not the nature of the object.2. In C++ , the access control

C + + inheritance can be a single inheritance or multiple inheritance, and each inherited connection can be public,protected,private or virtual or non-virtual. Then the individual member function options can be virtual or non-virtual or pure virtual.