... to be strongly exception-safe and call placement new correctly. The old code could call user-provided overloads of new, because it didn't cast the pointer to void* before calling placement-new. It would also "randomly" stop when an exception was thrown. It correctly updated the size of the container only after successful construction of the element, but that's just weak exception-safety. There's no reason this operation shouldn't be strongly exception-safe. So instead of a raw loop around raw placement-new, use the corresponding raw memory STL algorithms. They handle exceptions and call placement-new correctly, and the code is both simpler as a consequence, and more efficient, as it updates this->size only once. Found in API-review. Amends 73bf1c1a9bcc2615370d6a199420da0c6f380a44. Pick-to: 6.8 Change-Id: I535f393a3c378e1eea104bd3a05a274b9ec17964 Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>