What are captures and parameters in C++?

Can you explain the difference between captures and parameters in C++ lambdas?

Sure! In C++, captures refer to how a lambda function accesses variables from its surrounding scope, while parameters are the inputs you pass to the lambda.

How do captures work in a lambda?

Captures allow a lambda to use variables from its enclosing scope. You can capture by value or by reference.

What’s the difference between capturing by value and by reference?

Capturing by value creates a copy of the variable, while capturing by reference allows the lambda to modify the original variable.

Can you give an example of a lambda with captures?

Certainly! Here's a simple example: int x = 10; auto lambda = [&x]() { x++; }; lambda(); This captures x by reference and increments it.

What about parameters in lambdas?

Parameters in lambdas are similar to function parameters. They allow you to pass arguments when you invoke the lambda.