• bearophile <bearophileHUGS lycos.com> Dec 15 2010

bearophile <bearophileHUGS lycos.com> writes:

Ary Borenszweig:

 D should provide a yield keyword that basically rewrites the body of the 
 method into the first code. What's that "if (result) break;"? That's 
 showing the implementation of foreach. Why do I have to rememebr the 
 result of dg? What's that? What if I forget it? I just want to yield two 
 elements :-(


Time ago I have asked for the "yield" syntax&semantics of Python in D too. It's
just syntax sugar for opApply. A syntax like:

yield(int) squares(int n) {
  foreach (i; 0 .. n)
    yield i * i;
}

Bye,
bearophile