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Add cpow from OpenBSD
Use clang by default on Darwin Enable cpow tests Fix #22
This commit is contained in:
Viral B. Shah
parent
0cd232d8cf
commit
29af332f36
5 changed files with 226 additions and 1 deletions
7
Make.inc
7
Make.inc
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@ -8,6 +8,12 @@ FFLAGS += -O3
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USEGCC = 1
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USECLANG = 0
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ifeq ($(OS), Darwin)
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USEGCC = 0
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USECLANG = 1
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endif
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AR = ar
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ifeq ($(USECLANG),1)
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USEGCC = 0
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@ -19,7 +25,6 @@ ifeq ($(USEGCC),1)
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CC = gcc
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CFLAGS_add += -fno-gnu89-inline
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endif
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AR = ar
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ARCH := $(shell $(CC) -dumpmachine | sed "s/\([^-]*\).*$$/\1/")
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ifeq ($(ARCH),mingw32)
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@ -30,6 +30,7 @@ $(CUR_SRCS) = \
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s_scalbln.c s_scalbn.c s_scalbnf.c s_signbit.c \
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s_signgam.c s_significand.c s_significandf.c s_sin.c s_sinf.c \
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s_tan.c s_tanf.c s_tanh.c s_tanhf.c s_tgammaf.c s_trunc.c s_truncf.c \
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s_cpow.c s_cpowf.c s_cpowl.c \
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w_cabs.c w_cabsf.c w_drem.c w_dremf.c
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ifneq ($(OS), WINNT)
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76
src/s_cpow.c
Normal file
76
src/s_cpow.c
Normal file
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@ -0,0 +1,76 @@
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/* $OpenBSD: s_cpow.c,v 1.6 2013/07/03 04:46:36 espie Exp $ */
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/*
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* Copyright (c) 2008 Stephen L. Moshier <steve@moshier.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* cpow
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*
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* Complex power function
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*
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*
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*
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* SYNOPSIS:
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*
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* double complex cpow();
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* double complex a, z, w;
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*
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* w = cpow (a, z);
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*
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*
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*
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* DESCRIPTION:
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*
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* Raises complex A to the complex Zth power.
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* Definition is per AMS55 # 4.2.8,
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* analytically equivalent to cpow(a,z) = cexp(z clog(a)).
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*
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* ACCURACY:
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*
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* Relative error:
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* arithmetic domain # trials peak rms
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* IEEE -10,+10 30000 9.4e-15 1.5e-15
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*
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*/
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#include <complex.h>
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#include <float.h>
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#include <math.h>
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double complex
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cpow(double complex a, double complex z)
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{
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double complex w;
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double x, y, r, theta, absa, arga;
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x = creal (z);
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y = cimag (z);
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absa = cabs (a);
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if (absa == 0.0) {
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return (0.0 + 0.0 * I);
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}
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arga = carg (a);
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r = pow (absa, x);
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theta = x * arga;
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if (y != 0.0) {
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r = r * exp (-y * arga);
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theta = theta + y * log (absa);
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}
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w = r * cos (theta) + (r * sin (theta)) * I;
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return (w);
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}
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#if LDBL_MANT_DIG == DBL_MANT_DIG
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__strong_alias(cpowl, cpow);
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#endif /* LDBL_MANT_DIG == DBL_MANT_DIG */
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71
src/s_cpowf.c
Normal file
71
src/s_cpowf.c
Normal file
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@ -0,0 +1,71 @@
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/* $OpenBSD: s_cpowf.c,v 1.2 2010/07/18 18:42:26 guenther Exp $ */
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/*
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* Copyright (c) 2008 Stephen L. Moshier <steve@moshier.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* cpowf
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*
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* Complex power function
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*
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*
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*
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* SYNOPSIS:
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*
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* float complex cpowf();
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* float complex a, z, w;
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*
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* w = cpowf (a, z);
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*
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*
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*
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* DESCRIPTION:
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*
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* Raises complex A to the complex Zth power.
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* Definition is per AMS55 # 4.2.8,
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* analytically equivalent to cpow(a,z) = cexp(z clog(a)).
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*
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* ACCURACY:
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*
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* Relative error:
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* arithmetic domain # trials peak rms
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* IEEE -10,+10 30000 9.4e-15 1.5e-15
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*
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*/
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#include <complex.h>
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#include <math.h>
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float complex
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cpowf(float complex a, float complex z)
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{
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float complex w;
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float x, y, r, theta, absa, arga;
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x = crealf(z);
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y = cimagf(z);
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absa = cabsf (a);
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if (absa == 0.0f) {
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return (0.0f + 0.0f * I);
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}
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arga = cargf (a);
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r = powf (absa, x);
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theta = x * arga;
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if (y != 0.0f) {
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r = r * expf (-y * arga);
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theta = theta + y * logf (absa);
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}
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w = r * cosf (theta) + (r * sinf (theta)) * I;
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return (w);
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}
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72
src/s_cpowl.c
Normal file
72
src/s_cpowl.c
Normal file
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@ -0,0 +1,72 @@
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/* $OpenBSD: s_cpowl.c,v 1.2 2011/07/20 19:28:33 martynas Exp $ */
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/*
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* Copyright (c) 2008 Stephen L. Moshier <steve@moshier.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* cpowl
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*
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* Complex power function
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*
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*
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*
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* SYNOPSIS:
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*
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* long double complex cpowl();
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* long double complex a, z, w;
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*
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* w = cpowl (a, z);
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*
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*
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*
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* DESCRIPTION:
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*
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* Raises complex A to the complex Zth power.
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* Definition is per AMS55 # 4.2.8,
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* analytically equivalent to cpow(a,z) = cexp(z clog(a)).
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*
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* ACCURACY:
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*
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* Relative error:
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* arithmetic domain # trials peak rms
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* IEEE -10,+10 30000 9.4e-15 1.5e-15
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*
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*/
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#include <complex.h>
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#include <math.h>
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long double complex
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cpowl(long double complex a, long double complex z)
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{
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long double complex w;
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long double x, y, r, theta, absa, arga;
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x = creall(z);
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y = cimagl(z);
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absa = cabsl(a);
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if (absa == 0.0L) {
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return (0.0L + 0.0L * I);
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}
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arga = cargl(a);
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r = powl(absa, x);
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theta = x * arga;
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if (y != 0.0L) {
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r = r * expl(-y * arga);
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theta = theta + y * logl(absa);
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}
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w = r * cosl(theta) + (r * sinl(theta)) * I;
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return (w);
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}
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