[Issue 4085] Steps toward a static foreach

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=4085



--- Comment #10 from bearophile_hugs at eml.cc 2013-08-22 16:50:01 PDT ---
Adapted from two comments by Timon Gehr:

> It's important to keep them separate regardless. static foreach is close 
> to useless if it introduces a new scope for its body.
> 
> I.e.:
> 
> int main() {
>     foreach (_; Seq!int) {
>         int x;
>     }
>     return x; // error
> }
> 
> int main() {
>     static foreach (_; Seq!int) {
>         int x;
>     }
>     return x; // ok
> }
> 
> I think the relationship between foreach and static foreach 
> should essentially mirror that of if and static if.

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