For perf, one generally uses memcpy unless memmove's semantics are needed. I think you have confused memcpy vs -move with copy vs move ctors. Certainly your las

For perf, one generally uses memcpy unless memmove's semantics are needed. I think you have confused memcpy vs -move with copy vs move ctors. Certainly your last sentence is not correct for any reasonably written code. Check the docs yourself, but this doesn't match my understanding.