What are some use cases for generic lambdas in C++?

What are some use cases for generic lambdas in C++?

Generic lambdas in C++ allow you to create functions that can operate on different types. They are useful for algorithms, callbacks, and more.

Can you give me an example of a generic lambda?

Sure! Here's a simple example: auto add = [](auto a, auto b) { return a + b; }; This lambda can add integers, floats, or any types that support the + operator.

How do they improve code reusability?

They allow you to write a single function that works with multiple types, reducing code duplication and enhancing maintainability.

Are there any performance considerations?

Yes, while generic lambdas can be efficient, excessive use of type erasure or complex types may lead to performance overhead. It's important to profile your code.

What C++ version introduced generic lambdas?

Generic lambdas were introduced in C++14, which expanded the capabilities of lambdas significantly.