3 ms·

Doesn't this create a new (temporary) array of value `[b,a]`?

• ncmncm 5y ago
  If it does, that was optimal. If it doesn't, that was optimal. Outsmarting your optimizer is harder than that nowadays.
  • rurban 5y ago
    if optimizers would be smart. they are not. they do bad things, and occasionally even wrong things. and usually compiler writers blame the user, not themselves then.
• deleted 5y ago
  [deleted]