From 0e0900cb4033d82f8a34a05283724b3233306d80 Mon Sep 17 00:00:00 2001 From: Aditya Upadhyay Date: Fri, 28 Jul 2017 22:59:40 +0530 Subject: [PATCH] Importing catanl long double complex method from NetBSD. --- newlib/libm/complex/Makefile.am | 2 +- newlib/libm/complex/Makefile.in | 13 ++++-- newlib/libm/complex/catanl.c | 77 +++++++++++++++++++++++++++++++++ 3 files changed, 88 insertions(+), 4 deletions(-) create mode 100644 newlib/libm/complex/catanl.c diff --git a/newlib/libm/complex/Makefile.am b/newlib/libm/complex/Makefile.am index 47b966216..897774197 100644 --- a/newlib/libm/complex/Makefile.am +++ b/newlib/libm/complex/Makefile.am @@ -14,7 +14,7 @@ lsrc = cabsl.c creall.c cimagl.c ccoshl.c cacoshl.c \ clogl.c csqrtl.c cargl.c cprojl.c cexpl.c \ cephes_subrl.c cacosl.c ccosl.c casinl.c \ catanhl.c conjl.c cpowl.c ctanhl.c ctanl.c \ - casinhl.c csinhl.c csinl.c + casinhl.c csinhl.c csinl.c catanl.c fsrc = cabsf.c casinf.c ccosf.c cimagf.c cprojf.c \ csqrtf.c cacosf.c casinhf.c ccoshf.c clogf.c clog10f.c \ diff --git a/newlib/libm/complex/Makefile.in b/newlib/libm/complex/Makefile.in index d52bc517c..ba30971be 100644 --- a/newlib/libm/complex/Makefile.in +++ b/newlib/libm/complex/Makefile.in @@ -101,7 +101,8 @@ am__objects_3 = lib_a-cabsl.$(OBJEXT) lib_a-creall.$(OBJEXT) \ lib_a-catanhl.$(OBJEXT) lib_a-conjl.$(OBJEXT) \ lib_a-cpowl.$(OBJEXT) lib_a-ctanhl.$(OBJEXT) \ lib_a-ctanl.$(OBJEXT) lib_a-casinhl.$(OBJEXT) \ - lib_a-csinhl.$(OBJEXT) lib_a-csinl.$(OBJEXT) + lib_a-csinhl.$(OBJEXT) lib_a-csinl.$(OBJEXT) \ + lib_a-catanl.$(OBJEXT) @USE_LIBTOOL_FALSE@am_lib_a_OBJECTS = $(am__objects_1) \ @USE_LIBTOOL_FALSE@ $(am__objects_2) $(am__objects_3) lib_a_OBJECTS = $(am_lib_a_OBJECTS) @@ -119,7 +120,7 @@ am__objects_5 = cabsf.lo casinf.lo ccosf.lo cimagf.lo cprojf.lo \ am__objects_6 = cabsl.lo creall.lo cimagl.lo ccoshl.lo cacoshl.lo \ clogl.lo csqrtl.lo cargl.lo cprojl.lo cexpl.lo cephes_subrl.lo \ cacosl.lo ccosl.lo casinl.lo catanhl.lo conjl.lo cpowl.lo \ - ctanhl.lo ctanl.lo casinhl.lo csinhl.lo csinl.lo + ctanhl.lo ctanl.lo casinhl.lo csinhl.lo csinl.lo catanl.lo @USE_LIBTOOL_TRUE@am_libcomplex_la_OBJECTS = $(am__objects_4) \ @USE_LIBTOOL_TRUE@ $(am__objects_5) $(am__objects_6) libcomplex_la_OBJECTS = $(am_libcomplex_la_OBJECTS) @@ -290,7 +291,7 @@ lsrc = cabsl.c creall.c cimagl.c ccoshl.c cacoshl.c \ clogl.c csqrtl.c cargl.c cprojl.c cexpl.c \ cephes_subrl.c cacosl.c ccosl.c casinl.c \ catanhl.c conjl.c cpowl.c ctanhl.c ctanl.c \ - casinhl.c csinhl.c csinl.c + casinhl.c csinhl.c csinl.c catanl.c fsrc = cabsf.c casinf.c ccosf.c cimagf.c cprojf.c \ csqrtf.c cacosf.c casinhf.c ccoshf.c clogf.c clog10f.c \ @@ -814,6 +815,12 @@ lib_a-csinl.o: csinl.c lib_a-csinl.obj: csinl.c $(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` +lib_a-catanl.o: catanl.c + $(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 + +lib_a-catanl.obj: catanl.c + $(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` + mostlyclean-libtool: -rm -f *.lo diff --git a/newlib/libm/complex/catanl.c b/newlib/libm/complex/catanl.c new file mode 100644 index 000000000..ee2a25930 --- /dev/null +++ b/newlib/libm/complex/catanl.c @@ -0,0 +1,77 @@ +/* $NetBSD: catanl.c,v 1.1 2014/10/10 00:48:18 christos Exp $ */ + +/*- + * Copyright (c) 2007 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software written by Stephen L. Moshier. + * It is redistributed by the NetBSD Foundation by permission of the author. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include "cephes_subrl.h" + +#ifdef __weak_alias +__weak_alias(catanl, _catanl) +#endif + +long double complex +catanl(long double complex z) +{ + long double complex w; + long double a, t, x, x2, y; + + x = creall(z); + y = cimagl(z); + + if ((x == 0.0L) && (y > 1.0L)) + goto ovrf; + + x2 = x * x; + a = 1.0L - x2 - (y * y); + if (a == 0.0) + goto ovrf; + + t = 0.5L * atan2l(2.0L * x, a); + w = _redupil(t); + + t = y - 1.0L; + a = x2 + (t * t); + if (a == 0.0L) + goto ovrf; + + t = y + 1.0L; + a = (x2 + (t * t))/a; + w = w + (0.25L * logl(a)) * I; + return w; + +ovrf: +#if 0 + mtherr ("catanl", OVERFLOW); +#endif + w = HUGE_VALL + HUGE_VALL * I; + return w; +} +