Template with default parameter
jj_1337 at live.dk
Fri Mar 11 07:06:15 UTC 2022
On Friday, 11 March 2022 at 04:41:40 UTC, Andrey Zherikov wrote:
> I have simple template:
> template T(int i=3)
> mixin template M(int m)
> enum t = i;
> mixin T!1.M!1;
> pragma(msg, t); // 1
> mixin T!().M!1;
> pragma(msg, t); // 3
> mixin T.M!1; // Error: identifier `M` of `T.M` is not
> // Error: mixin `M!1` is not defined
> pragma(msg, t); // Error: undefined identifier `t`
> // while evaluating `pragma(msg, t)`
> What should I do to be able to write `T.M!...`? I want to omit
> verbose `!()` for `T`. Note that mixins are essential here.
Create an alias for T!() is the best you can do.
alias t = T!();
There isn't really any better method as far as I know.
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