On 7/1/20 8:05 AM, Luke Small wrote:
I spoke to my favorite university computer science professor who said ++n is faster than n++ because the function needs to store the initial value, increment, then return the stored value in the former case, while the later merely increments, and returns the value. Apparently, he is still correct on modern hardware.
For decades the ++ and *p could be out of order, in different execution units, writes speculatively queued, assigned to aliased registers, etc, etc, etc.
Geoff Steckel
