BZ#2153: cacosh bug

[Ulrich Drepper]

Andreas Jaeger wrote:
>
> +ildouble: 735
> +ldouble: 735
>  
>  Function: Imaginary part of "cacosh":
>  double: 1
>  float: 3
>  idouble: 1
>  ifloat: 3
> -ildouble: 1
> -ldouble: 1
> +ildouble: 119
> +ldouble: 119

If there are error ranges like this there is clearly something wrong.
This has to be fixed.

Separate out the sign fix from adding the new test cases and file a bug
for the new tests, pointing to the high ulps.

-- 
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖

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