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This article is about how to use the special constructor of C++. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Copy constructor

Copy construction: it is unique to C++. It is a special constructor.

An object used to create and initialize based on the first object of the same class

The first parameter is a reference to the object of this class (const)

What is a copy constructor

A special constructor, an object of the same class to create or initialize an object

When it is not written, it exists by default, and after you write it yourself, the system will disappear by default (this is the constructor).

Copy constructor can achieve: object replication

Class Monster {public: Monster (Monster& m) / / copy constructor (default form) {/ / default copy constructor (default form), mapping objects one by one to the value cout

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