What are the characteristics of C++ constructors?

5 months ago

1 minute

The constructor has the same name as the class, no return type, including the default constructor, copy constructor, parameterized constructor, etc.
The constructor is automatically called when an object is created, to initialize the object’s member variables.
Constructors can be overloaded, which means you can define multiple constructors based on the types or number of parameters passed in to distinguish between different constructors.
If a constructor is not defined, the compiler will provide a default constructor to initialize the object’s member variables.
Constructors can perform any initialization operations, such as allocating or opening files.
Constructors can perform parameter validation and initialization.
Constructors can be utilized by other functions, but are typically used for creating and initializing objects.