C++ Const Performance Comparison

What is the performance difference between using const and non-const variables in C++?

Using const variables can lead to better optimization by the compiler, as it knows the value won't change.

Are there specific scenarios where using const is more beneficial?

Yes, const is particularly beneficial in function parameters and return types, as it can prevent unnecessary copies.

How does const affect memory usage?

Const itself doesn't directly affect memory usage, but it can lead to optimizations that reduce memory overhead.

Can you give an example of const usage in a function?

Sure! For example, using 'const int&' as a parameter type avoids copying while ensuring the value remains unchanged.