On Saturday, 14 December 2019 at 08:44:21 UTC, berni44 wrote:
> Update: While this first PR is still waiting for being revied, a second PR (the same for '%a' qualifier) has been merged last week. Today I filed a third PR (for '%e' qualifier).
>
> The '%g' qualifier has to wait until these two PRs are merged, because it depends strongly on those two. With the help of Petar Kirov [ZombineDev] I meanwhile also managed to make the whole CTFEable. But this also has to wait for the two PRs mentioned above.

I'm still waiting for a review... The algorithm isn't really complicated. It's essentially successive division/multiplication by 10. Unfortunately with numbers larger than ulong and there is all the stuff with the flags, precision and width... But should be doable anyway, IMHO.

* https://github.com/dlang/phobos/pull/7264
* https://github.com/dlang/phobos/pull/7318