enum and foreach

[Henning Hasemann]

yvad <yannurov at gmail.com> wrote:
> if there is any way to use named enum as source of foreach?
> For example like
> 
> enum X {A, B, C}
> 
> foreach(x; X) ...
> 
> I have enum that can be extened in future. But I dont want to
> refactor sources every time I I extend enum

You can do:
for(auto x = X.min; x <= X.max; x++) { ... }

But note however that this will execute your body once for each numeric
value between the lowest and the highest in your enum, not for each
defined member. ie if you do:

enum X {A=50, B=50, C=100};

The loop will be run for 50, 51, 52, ..., 99, 100.

Henning

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