What is a Copy Constructor in C : A Fundamental Component Explained
In C , a copy constructor is a special function that is automatically called whenever an object of a class is initialized with another object of the same class. Copy constructors play a critical role in object-oriented programming, ensuring that objects are copied correctly.
Meyers's definition in his seminal work, "Effective C ," emphasizes the significance of copy constructors. However, this concept may not be explicitly mentioned in all programming resources, such as Schiltdt's book. Nevertheless, as the C FAQ confirms, copy constructors are an integral part of the language standard.
Copy constructors become crucial when you pass an object of a class by value. In such instances, a new object is created, and the copy constructor is invoked to initialize it with values from the passed object. This process creates a separate copy, ensuring that any changes made to the new object will not affect the original one. The copy constructor ensures the integrity and independence of objects in C , fostering proper object-oriented design and preventing unintended modifications.
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