When should I use std::vector in C++?

When should I use std::vector in C++?

You should use std::vector when you need a dynamic array that can grow or shrink in size, providing easy access to elements.

What are the advantages of using std::vector over arrays?

std::vector offers automatic memory management, bounds checking, and built-in functions for easy manipulation, unlike raw arrays.

Are there any performance drawbacks to using std::vector?

Yes, while std::vector is efficient, it can incur overhead during resizing and may lead to memory fragmentation.

Can I use std::vector with custom objects?

Absolutely! std::vector can store any type of object, including custom classes, as long as they are copyable.

What happens if I exceed the capacity of a std::vector?

If you exceed the capacity, std::vector will automatically allocate more memory and copy existing elements to the new storage.