Re: [PATCH 2/3] libm: Remove __ieee754_gamma_r variants

Corinna Vinschen via Newlib <[email protected]> Wed, 26 Aug 2020 20:20:46 +0200

Newsgroups	gmane.comp.lib.newlib
Message-ID	<[email protected]>

Hi Keith,

On Aug 26 10:03, Keith Packard via Newlib wrote:
> Gamma should consume the sign reported by lgamma internally instead of
> providing it back to the application. This removes the need to have _r
> variants as there is no longer any re-entrancy issues with the API.

You can't do that.  gamma_r/gammaf_r/lgamma_r/lgammaf_r are BSD
functions.  They have been exported by Cygwin since 2001.  The entry
points need to be kept available with unchanged semantics.

Corinna