Using arrays or std::vectors in C++, what's the performance gap?

Question

In our C++ course they suggest not to use C++ arrays on new projects anymore. As far as I know Stroustroup himself suggests not to use arrays. But are there significant perf

Answer 1

I'd argue that the primary concern isn't performance, but safety. You can make a lot of mistakes with arrays (consider resizing, for example), where a vector would save you a lot of pain.