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To: Ulrich Drepper <drepper@redhat.com>
Cc: GNU libc hacker <libc-hacker@sources.redhat.com>
Subject: Re: carg, cimag, creal,.. in tgmath.h
References: <u8vfv7qoag.fsf@gromit.moeb> <3EECA99F.2030700@redhat.com>
From: Andreas Jaeger <aj@suse.de>
Date: Sun, 15 Jun 2003 19:00:00 -0000
In-Reply-To: <3EECA99F.2030700@redhat.com> (Ulrich Drepper's message of
 "Sun, 15 Jun 2003 10:15:11 -0700")
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Ulrich Drepper <drepper@redhat.com> writes:

> Andreas Jaeger wrote:
>
>> Here's a patch to fix the c* functions.  Ok to commit?
>
> What exactly is wrong.  And cite the standard.

=46rom 7.22:
       [#6] For each unsuffixed function in <complex.h> that is not
       a c-prefixed counterpart to  a  function  in  <math.h>,  the
       corresponding  type-generic  macro  has the same name as the
       function.  These type-generic macros are:

            carg          conj          creal
            cimag         cproj

       Use of the macro with any real or complex argument invokes a
       complex function.

The problem is that carg(real float variable) will call the long
double function.

Andreas
--=20
 Andreas Jaeger, SuSE Linux AG, aj@suse.de, http://www.suse.de/~aj
  GPG fingerprint =3D 93A3 365E CE47 B889 DF7F  FED1 389A 563C C272 A126

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