What is the memory overhead of std::deque in C++11?

What is the memory overhead of std::deque in C++11?

The memory overhead of std::deque in C++11 can vary based on the implementation, but it generally includes extra space for managing multiple chunks of memory.

How does it compare to std::vector in terms of memory usage?

std::vector typically has less memory overhead than std::deque because it uses a single contiguous block of memory, while std::deque uses multiple blocks.

Are there any performance implications due to this overhead?

Yes, the overhead can lead to performance implications, especially in terms of cache locality and allocation speed, as std::deque may require more frequent allocations.

What are the use cases where std::deque is preferred over std::vector?

std::deque is preferred when you need efficient insertions and deletions at both ends, while std::vector is better for random access and contiguous storage.