Re: Formatting numbers without precision loss

[Hugo Musso Gualandi <hgualandi@...>]

> On 20/06/2023 16:14, Hugo Musso Gualandi wrote:
> > In Pallene we try from "%.6g" to "%.17g" and pick the smallest one 
> > that round-trips to the original number. (We can't use %a because our 
> > output is C, not Lua). 
>
> Are you bound to C89? C99 has %a:
>
> https://en.cppreference.com/w/c/io/fprintf

Currently we do try to support c89.  Also, we found that using decimal 
when possible was more readable :)

By the way, beware that "%a" doesn't always produce something that's a 
valid C or Lua literal. For example, it might return "inf" or "-nan".