[PATCH 8/8] math: Use binary search on tgammaf slow path

[Wilco Dijkstra]

Hi Paul,

> this was just a stylistic remark. You can keep the above code.
>
> Please can you submit a v2 with the shorter list of exceptions?

If the other binary searches are the same, they are all incorrect as I
pointed out. Either 'b' is included in the range or outside, but it cannot
be both!

Cheers,
Wilco