What are some advanced techniques for using std::vector in C++?

What are some advanced techniques for using std::vector in C++?

Some advanced techniques include using std::vector with move semantics, custom allocators, and emplacing elements.

Can you explain how move semantics work with std::vector?

Sure! Move semantics allow you to transfer ownership of resources from one std::vector to another, improving performance.

What are custom allocators and how do they benefit std::vector?

Custom allocators let you control memory allocation for std::vector, which can optimize performance for specific use cases.

How can I efficiently resize a std::vector?

You can use the reserve() method to allocate memory in advance, reducing the number of reallocations when resizing.

Are there any best practices for using std::vector?

Yes, prefer using emplace_back() over push_back() for constructing objects in place, and avoid unnecessary copies.