Importing catanl long double complex method from NetBSD.
This commit is contained in:
Aditya Upadhyay
Corinna Vinschen
parent
124ccc500e
commit
0e0900cb40
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@ -14,7 +14,7 @@ lsrc = cabsl.c creall.c cimagl.c ccoshl.c cacoshl.c \
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clogl.c csqrtl.c cargl.c cprojl.c cexpl.c \
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cephes_subrl.c cacosl.c ccosl.c casinl.c \
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catanhl.c conjl.c cpowl.c ctanhl.c ctanl.c \
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casinhl.c csinhl.c csinl.c
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casinhl.c csinhl.c csinl.c catanl.c
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fsrc = cabsf.c casinf.c ccosf.c cimagf.c cprojf.c \
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csqrtf.c cacosf.c casinhf.c ccoshf.c clogf.c clog10f.c \
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@ -101,7 +101,8 @@ am__objects_3 = lib_a-cabsl.$(OBJEXT) lib_a-creall.$(OBJEXT) \
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lib_a-catanhl.$(OBJEXT) lib_a-conjl.$(OBJEXT) \
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lib_a-cpowl.$(OBJEXT) lib_a-ctanhl.$(OBJEXT) \
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lib_a-ctanl.$(OBJEXT) lib_a-casinhl.$(OBJEXT) \
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lib_a-csinhl.$(OBJEXT) lib_a-csinl.$(OBJEXT)
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lib_a-csinhl.$(OBJEXT) lib_a-csinl.$(OBJEXT) \
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lib_a-catanl.$(OBJEXT)
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@USE_LIBTOOL_FALSE@am_lib_a_OBJECTS = $(am__objects_1) \
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@USE_LIBTOOL_FALSE@ $(am__objects_2) $(am__objects_3)
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lib_a_OBJECTS = $(am_lib_a_OBJECTS)
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@ -119,7 +120,7 @@ am__objects_5 = cabsf.lo casinf.lo ccosf.lo cimagf.lo cprojf.lo \
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am__objects_6 = cabsl.lo creall.lo cimagl.lo ccoshl.lo cacoshl.lo \
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clogl.lo csqrtl.lo cargl.lo cprojl.lo cexpl.lo cephes_subrl.lo \
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cacosl.lo ccosl.lo casinl.lo catanhl.lo conjl.lo cpowl.lo \
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ctanhl.lo ctanl.lo casinhl.lo csinhl.lo csinl.lo
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ctanhl.lo ctanl.lo casinhl.lo csinhl.lo csinl.lo catanl.lo
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@USE_LIBTOOL_TRUE@am_libcomplex_la_OBJECTS = $(am__objects_4) \
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@USE_LIBTOOL_TRUE@ $(am__objects_5) $(am__objects_6)
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libcomplex_la_OBJECTS = $(am_libcomplex_la_OBJECTS)
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@ -290,7 +291,7 @@ lsrc = cabsl.c creall.c cimagl.c ccoshl.c cacoshl.c \
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clogl.c csqrtl.c cargl.c cprojl.c cexpl.c \
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cephes_subrl.c cacosl.c ccosl.c casinl.c \
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catanhl.c conjl.c cpowl.c ctanhl.c ctanl.c \
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casinhl.c csinhl.c csinl.c
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casinhl.c csinhl.c csinl.c catanl.c
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fsrc = cabsf.c casinf.c ccosf.c cimagf.c cprojf.c \
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csqrtf.c cacosf.c casinhf.c ccoshf.c clogf.c clog10f.c \
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@ -814,6 +815,12 @@ lib_a-csinl.o: csinl.c
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lib_a-csinl.obj: csinl.c
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$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-csinl.obj `if test -f 'csinl.c'; then $(CYGPATH_W) 'csinl.c'; else $(CYGPATH_W) '$(srcdir)/csinl.c'; fi`
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lib_a-catanl.o: catanl.c
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$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-catanl.o `test -f 'catanl.c' || echo '$(srcdir)/'`catanl.c
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lib_a-catanl.obj: catanl.c
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$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-catanl.obj `if test -f 'catanl.c'; then $(CYGPATH_W) 'catanl.c'; else $(CYGPATH_W) '$(srcdir)/catanl.c'; fi`
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mostlyclean-libtool:
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-rm -f *.lo
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@ -0,0 +1,77 @@
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/* $NetBSD: catanl.c,v 1.1 2014/10/10 00:48:18 christos Exp $ */
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/*-
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* Copyright (c) 2007 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software written by Stephen L. Moshier.
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* It is redistributed by the NetBSD Foundation by permission of the author.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <complex.h>
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#include <math.h>
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#include "cephes_subrl.h"
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#ifdef __weak_alias
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__weak_alias(catanl, _catanl)
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#endif
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long double complex
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catanl(long double complex z)
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{
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long double complex w;
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long double a, t, x, x2, y;
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x = creall(z);
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y = cimagl(z);
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if ((x == 0.0L) && (y > 1.0L))
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goto ovrf;
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x2 = x * x;
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a = 1.0L - x2 - (y * y);
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if (a == 0.0)
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goto ovrf;
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t = 0.5L * atan2l(2.0L * x, a);
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w = _redupil(t);
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t = y - 1.0L;
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a = x2 + (t * t);
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if (a == 0.0L)
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goto ovrf;
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t = y + 1.0L;
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a = (x2 + (t * t))/a;
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w = w + (0.25L * logl(a)) * I;
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return w;
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ovrf:
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#if 0
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mtherr ("catanl", OVERFLOW);
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#endif
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w = HUGE_VALL + HUGE_VALL * I;
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return w;
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}
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