What are some use cases for std::deque in C++?

What are some use cases for std::deque in C++?

std::deque is useful for scenarios where you need fast insertions and deletions at both ends, like in a double-ended queue.

Can you give me an example of where I might use it?

Sure! You could use std::deque to implement a task scheduler where tasks can be added or removed from both the front and back.

Are there any performance considerations I should be aware of?

Yes, while std::deque offers efficient operations at both ends, it may have slightly higher overhead compared to std::vector due to its non-contiguous memory allocation.

What about thread safety? Is std::deque safe to use in multi-threaded applications?

std::deque itself is not thread-safe. You would need to implement your own synchronization mechanisms when accessing it from multiple threads.