On Saturday, 22 December 2018 at 20:24:46 UTC, Stefan Koch wrote:
On Saturday, 22 December 2018 at 20:08:12 UTC, Stefan Koch
wrote:
Thus enabling you to convert doubles into strings at
compiletime.
Cool, CTFE formating is something that occasionaly comes in the
forum. Now i remember there's also RYU [1] that could have worked
too
Aww .... I am dumb ... should have waited 2 days :)
No because actually from a pagan point of view the big thing was
yesterday night (solstice).
Anyhow I hope that this is helpful to some of you.
Please note that grisu 2 will give you representation which
will convert into the same(!) floatingpoint number you passed
in >92% of all possible inputs.
Meaning you can round trip from string to double without loss
of bits, for very many number but not all of them, that said
the accuracy in general should be better than what a usual
sprintf would give you.
Cheers and Merry Christmas,
Stefan
[1] https://github.com/ulfjack/ryu
