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Re: builtin gamma function

From: Ian Lance Taylor <iant at google dot com>
To: James Hirschorn <James dot Hirschorn at hotmail dot com>
Cc: <gcc at gcc dot gnu dot org>, <james dot hirschorn at gmail dot com>
Date: Tue, 15 Nov 2011 09:27:34 -0800
Subject: Re: builtin gamma function
References: <BLU0-SMTP104D5E14CCB96CB63B80565E9C10@phx.gbl> <mcr62il6ffn.fsf@dhcp-172-18-216-180.mtv.corp.google.com> <BLU0-SMTP103F73FF9465D98307DF615E9C10@phx.gbl>

James Hirschorn <James.Hirschorn@hotmail.com> writes:

> I guess "fold" means do the computation at compile time?

Yes.

> No, it is being called with a variable. That is interesting that libc has a
> gamma function. I will have to track down the implementation ...

I believe it is here:

http://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/ieee754/dbl-64/e_lgamma_r.c;h=e26ce8a24798d7e70b784c02dbbbc93e6a2ddb8e;hb=HEAD

Ian

References:
- builtin gamma function
  - From: James Hirschorn
- Re: builtin gamma function
  - From: Ian Lance Taylor
- RE: builtin gamma function
  - From: James Hirschorn

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