[Copy control cpp of C++ class] - In-depth understanding of copy control in C++
In C++, class copy control is a very important concept, which involves operations such as copying, assignment, and destruction of class objects. Correctly understanding and implementing class copy control is crucial to ensure program correctness and performance.
In this article, we will use some examples to deeply understand copy control in C++, and introduce how to customize functions such as copy constructor, copy assignment operator, and destructor according to needs, so as to achieve perfect copy control.
First of all, let's take a look at the copy constructor in C++. A copy constructor is a special constructor whose argument is a reference to an object of the same type. The copy constructor is called when an object is used to initialize another object. Here is a simple example:
class MyClass {
public:
int value;
MyClass() {
value =