Jason House wrote:
void iterateOverArray(T)(T[] arr){
foreach (i; 0..arr.length)
yield(arr[i]);
}
Coroutines are the slowest option, but the easiest to write. It takes 32
instructions or so to switch to or from a coroutine on x86. I'm not sure
how that translates in terms of memory usage, though. A delegate is
reasonably fast. A range struct's methods can be inlined (though opApply
could be, too, in some cases).
However, any collection library using polymorphism will have to use
polymorphic iterators. This means you probably won't get any benefit in
terms of speed from using ranges -- quite the opposite. But there are
benefits.
