Applications of std::Variant

Following are some main applications of the std::variant:

• Handling Multiple Data Types: One of the most common use cases for std::variant is when you need to work with functions or classes that can accept different data types. Instead of writing multiple overloads, you can use a variant to streamline your code and make it more maintainable.
• State Machines: State machines, a crucial concept in software engineering, often require managing different states and transitions. std::variant simplifies this by allowing you to represent states as types and transitions as functions, resulting in clean and efficient code.

In the world of modern C++ programming, the std::variant is a powerful tool that allows you to work with multiple data types in a flexible and type-safe manner. In this article, we will discuss std::variant and explore its fundamentals, applications, and benefits with practical code examples.

Prerequisites: C++ data types, functions, unions, and classes.