What are the limitations of C++ vectors?

What are the limitations of C++ vectors?

C++ vectors have a few limitations, such as fixed capacity, performance overhead for resizing, and memory fragmentation.

Can you explain the fixed capacity limitation?

Sure! Vectors can grow dynamically, but they have a capacity limit. When this limit is reached, they need to allocate more memory, which can be costly.

What happens during the resizing process?

During resizing, a new larger array is created, and existing elements are copied over. This can lead to performance issues.

Are there alternatives to vectors in C++?

Yes, alternatives include arrays, linked lists, and other STL containers like deque or list, each with its own pros and cons.

When should I avoid using vectors?

Avoid using vectors when you need constant time insertions/deletions in the middle of the container, as this can be inefficient.