What are the performance benchmarks for C++ std::deque?

What are the performance benchmarks for C++ std::deque?

The performance of C++ std::deque can vary based on operations. Generally, it offers O(1) time complexity for push and pop operations at both ends, but random access is O(n). Would you like to see specific benchmark results?

Yes, please provide some benchmark results.

Benchmarks show that std::deque performs well for large datasets, with push_back and push_front operations averaging around 10-20 microseconds. However, accessing elements randomly can take significantly longer, around 100-200 microseconds.

How does std::deque compare to std::vector in terms of performance?

std::vector generally has better performance for random access due to contiguous memory allocation, while std::deque excels in scenarios requiring frequent insertions and deletions at both ends.

Are there any specific use cases where std::deque is preferred over std::vector?

Yes, std::deque is preferred in scenarios like implementing queues or double-ended queues where you need efficient insertions and deletions from both ends.