On Friday, 10 February 2017 at 12:39:50 UTC, Bastiaan Veelo wrote:
void foreach_loop() { foreach(n, elem; d[]) elem = a[n] * b[n] / c[n]; }
It's fast because the result of the operation (elem) is discarded on each iteration, so it is probably optimized away.
Try: ``` void foreach_loop() { foreach(n, ref elem; d[]) elem = a[n] * b[n] / c[n]; } ``` You can also do: ``` d = a[] * b[] / c[]; ``` with no loop statement at all.