What are lambda captures in C++?

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

Sure! Lambda captures in C++ allow you to use variables from the surrounding scope inside a lambda function.

How do I capture variables by value and by reference?

You can capture variables by value using the syntax [=] and by reference using [&]. For example, [x, &y] captures x by value and y by reference.

What happens if I capture a variable that goes out of scope?

If you capture a variable that goes out of scope, accessing it inside the lambda will lead to undefined behavior.

Can you give me an example of a lambda capture?

Certainly! Here's a simple example: auto myLambda = [x](int z) { return x + z; }; This captures x by value.