How does memory management work with C++ STL vectors?

Can you explain how memory management works with C++ STL vectors?

Sure! C++ STL vectors manage memory automatically, but understanding their behavior is key.

What happens when a vector grows beyond its capacity?

When a vector exceeds its capacity, it allocates a new larger memory block, copies existing elements, and frees the old block.

Is it efficient to use vectors for large datasets?

Vectors are efficient for dynamic arrays, but for very large datasets, consider using other data structures like lists or deques.

How can I prevent unnecessary reallocations?

You can use the reserve() function to allocate enough memory in advance, preventing reallocations during growth.