What are some performance tips for using 2D vectors in C++11?

What are some performance tips for using 2D vectors in C++11?

To optimize 2D vectors in C++11, consider using reserve() to allocate memory upfront, reducing reallocations.

Should I prefer std::vector over arrays for 2D data?

Yes, std::vector provides better memory management and flexibility, but arrays can be faster for fixed-size data.

How can I avoid cache misses when accessing 2D vectors?

Access elements in a row-major order to improve cache locality, as this minimizes cache misses.

Are there any alternatives to std::vector for 2D data?

You might consider using std::array for fixed sizes or boost::multi_array for more complex structures.

What about using pointers for 2D arrays?

Using pointers can be efficient, but it requires manual memory management, which can lead to errors.