C++: std::vector vs. Array

What are the main differences between std::vector and arrays in C++?

The main differences include dynamic sizing for std::vector, while arrays have a fixed size. Also, std::vector provides more functionality like automatic memory management.

Can you explain how memory management works with std::vector?

Sure! std::vector manages memory automatically. It allocates memory when elements are added and deallocates when the vector is destroyed, preventing memory leaks.

Are there performance differences between using std::vector and arrays?

Yes, std::vector may have slight overhead due to dynamic memory allocation, but it offers better safety and flexibility. Arrays are faster for fixed-size data.

When should I prefer using std::vector over arrays?

You should prefer std::vector when you need dynamic sizing, easy element insertion/removal, or when you want to avoid manual memory management.