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[PATCH] libgfortran/24313 wrong branch cut for csqrt()

From: Steve Kargl <sgk at troutmask dot apl dot washington dot edu>
To: fortran at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
Date: Tue, 11 Oct 2005 13:42:54 -0700
Subject: [PATCH] libgfortran/24313 wrong branch cut for csqrt()

The attached patch fixes a problem with chosing the
proper branch cut for csqrt((0,-1)).  This problem 
is also in glibc in that libgfortran imported glibc's
csqrt{f}, which is used on OS's without these functions
in libm.

Bubblestrap and regresion tested on amd64-*-freebsd.

2005-10-11  Steven G. Kargl  <kargls@comcast.net>

	PR libgfortran/24313
	*  c99_functions.c (csqrtf, csqrt): Fix choice of branch cut.

	gfortran.dg/csqrt_2.f:  New test.

-- 
Steve

Attachment: csqrt_2.f
Description: Text document

Attachment: c99_functions.diff
Description: Text document

Follow-Ups:
- Re: [PATCH] libgfortran/24313 wrong branch cut for csqrt()
  - From: Andrew Pinski
- Re: [PATCH] libgfortran/24313 wrong branch cut for csqrt()
  - From: Tobias Schlüter

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