#include "hphp/runtime/base/array-init.h" #include "hphp/runtime/base/array-util.h" #include "hphp/runtime/base/comparisons.h" #include "hphp/runtime/base/directory.h ...

The use of STL files become common in recent years with the democratization of additive manufacturing processes and also the advent of numerical technics in the medical field. These two technologies, ...

You nicely explain how to get RVO when using std::optional. There is actually one extra option which is to use std::make_optional. This will still make RVO works. However, when using static class ...