How to make a function table?

[mnar53]

On Saturday, 16 February 2019 at 06:29:28 UTC, Alex wrote:
> On Saturday, 16 February 2019 at 05:06:55 UTC, mnar53 wrote:
>> [...]
>
> I assume, this would do its job:
>
> ´´´
> import std.typecons;
> import std.math;
>
> [...]

Yes, it works. Thx.