enum and foreach

[yvad]

Henning Hasemann Wrote:

> 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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This the main reason for foreach.