What does the C++ new operator do other than allocation and a ctor call?

Question

What are all the other things the new operator does other than allocating memory and calling a constructor?

Answer 1

Depends on if it's overloaded or not, if you built the app for debugging, if you're using a memory leak detector, if you have some kind of memory pooling scheme, if you have something like the Boehm garbage collector that's marking/unmarking bits, etc., etc. It could be doing a lot of custom stuff inside, or nothing special at all.