Before You Define a Copy Constructor and Assignment Operator…

Before You Define a Copy Constructor and Assignment Operator…

In general, classes that possess pointers, file handles, and other resources need a user-defined constructor to avoid aliasing. For example:

 class Person {private:  int age;  char * name;public:   // the following three member functions must be defined by the class implementer   Person (const char * name, int age);  Person & operator= (const Person & other);   Person (const Person& other);};

Seemingly, there’s no escape from explicitly defining a copy constructor and assignment operator for class Person, or else the compiler-generated copy constructor and assignment operator will result in aliasing. However, the aliasing problem in this case results from the reliance on low-level language constructs (a bare pointer). Had class Person possessed an embedded std::string object instead of a pointer to char, the user-written copy constructor and assignment operator wouldn’t be needed. When a class needs user-defined assignment operator and copy constructor, it may indicate a design flaw rather than an unavoidable necessity.

Share the Post:
Heading photo, Metadata.

What is Metadata?

What is metadata? Well, It’s an odd concept to wrap your head around. Metadata is essentially the secondary layer of data that tracks details about the “regular” data. The regular

XDR solutions

The Benefits of Using XDR Solutions

Cybercriminals constantly adapt their strategies, developing newer, more powerful, and intelligent ways to attack your network. Since security professionals must innovate as well, more conventional endpoint detection solutions have evolved

AI is revolutionizing fraud detection

How AI is Revolutionizing Fraud Detection

Artificial intelligence – commonly known as AI – means a form of technology with multiple uses. As a result, it has become extremely valuable to a number of businesses across

AI innovation

Companies Leading AI Innovation in 2023

Artificial intelligence (AI) has been transforming industries and revolutionizing business operations. AI’s potential to enhance efficiency and productivity has become crucial to many businesses. As we move into 2023, several

data fivetran pricing

Fivetran Pricing Explained

One of the biggest trends of the 21st century is the massive surge in analytics. Analytics is the process of utilizing data to drive future decision-making. With so much of