What are some examples of lambda expressions in C++?

What are some examples of lambda expressions in C++?

Lambda expressions in C++ are a way to create anonymous functions. For example, you can define a simple lambda like this: auto add = [](int a, int b) { return a + b; };.

Can you show me how to use that lambda in a sort function?

Sure! You can use the lambda in a sort function like this: std::sort(vec.begin(), vec.end(), [](int a, int b) { return a < b; }); This sorts the vector in ascending order.

What if I want to capture variables in the lambda?

You can capture variables by value or by reference. For example: int x = 10; auto lambda = [x](int a) { return a + x; }; captures x by value.

Are there any limitations to using lambda expressions?

Yes, lambda expressions cannot have default arguments, and they cannot be used to define recursive functions directly.