I'm catching up with the posts. Joseph Wakeling:
> As for iteration, I don't know to what degree D's foreach() across > arrays compares to for() commands in C++ -- I guess it should be pretty > close in performance, no? As you have seen from my benchmarks, when with dmd you use: foreach (x; arr) and x is longer than a word, then the loop is not as fast as it can be. When x is longer than a word it's often more efficient to use a ref, especially in the inner loop: foreach (ref const(double) x; arr) With the ldc compiler the different between using or not using a ref is zero, or some times using ref slows down the foreach a little. I have not filed enhancement requests about this because I think it's useless. Bye, bearophile
