Nor in Python. Nor in C++20's std::views. The very point of iterators us to proceed by one element, avoiding intermediate copies of collections. One case where

Nor in Python. Nor in C++20's std::views. The very point of iterators us to proceed by one element, avoiding intermediate copies of collections. One case where the for-loop would be much more efficient is a simple transformation like incrementing each element of an array, or adding two arrays element-wise. A serious C compiler could unroll such a loop into several vector instructions which work on several elements at once. Maybe even LLVM can recognize something like that in Go code.