What are lambda expressions in C++ and how do they capture variables?

Can you explain what lambda expressions are in C++?

Sure! Lambda expressions in C++ are a way to create anonymous functions. They allow you to define a function inline without needing to create a separate function definition.

How do lambda expressions capture variables?

Lambda expressions can capture variables from their surrounding scope. This can be done by value or by reference, depending on how you specify the capture.

Can you give me an example of capturing by value?

Absolutely! Here's an example: auto myLambda = [x]() { return x + 1; }; This captures the variable x by value.

What about capturing by reference?

For capturing by reference, you can use &. For example: auto myLambda = [&x]() { return x + 1; }; This captures x by reference, allowing you to modify it.