Open64 (mfef90, whirl2f, and IR tools)
TAG: version-openad; SVN changeset: 916
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00001 /* 00002 00003 Copyright (C) 2000, 2001 Silicon Graphics, Inc. All Rights Reserved. 00004 00005 This program is free software; you can redistribute it and/or modify it 00006 under the terms of version 2.1 of the GNU Lesser General Public License 00007 as published by the Free Software Foundation. 00008 00009 This program is distributed in the hope that it would be useful, but 00010 WITHOUT ANY WARRANTY; without even the implied warranty of 00011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 00012 00013 Further, this software is distributed without any warranty that it is 00014 free of the rightful claim of any third person regarding infringement 00015 or the like. Any license provided herein, whether implied or 00016 otherwise, applies only to this software file. Patent licenses, if 00017 any, provided herein do not apply to combinations of this program with 00018 other software, or any other product whatsoever. 00019 00020 You should have received a copy of the GNU Lesser General Public 00021 License along with this program; if not, write the Free Software 00022 Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, 00023 USA. 00024 00025 Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pky, 00026 Mountain View, CA 94043, or: 00027 00028 http://www.sgi.com 00029 00030 For further information regarding this notice, see: 00031 00032 http://oss.sgi.com/projects/GenInfo/NoticeExplan 00033 00034 */ 00035 00036 00037 00038 #include <math.h> 00039 #include "cmplx.h" 00040 #include "cmplrs/host.h" 00041 #include "moremath.h" 00042 00043 /* 00044 * Because sincosf() and sincos() are GNU extensions, we want to avoid 00045 * namespace confliict when using a GNU compiler. 00046 * (sincosf() is defined in pow_cc.c). 00047 */ 00048 static void my_sincos(double x, double *sinx, double *cosx) 00049 { 00050 *sinx = sin(x); 00051 *cosx = cos(x); 00052 } 00053 00054 dcomplex __powzz(double_t adreal, double_t adimag, double_t bdreal, double_t bdimag) 00055 { 00056 double_t logr, logi, x, y; 00057 double sinx, cosx; 00058 dcomplex r; 00059 00060 logr = log(hypot(adreal,adimag)); 00061 logi = atan2(adimag,adreal); 00062 00063 x = exp(logr*bdreal-logi*bdimag); 00064 y = logr*bdimag+logi*bdreal; 00065 00066 my_sincos(y, &sinx, &cosx); 00067 r.dreal = x*cosx; 00068 r.dimag = x*sinx; 00069 00070 return r; 00071 00072 00073 } 00074 00075 void pow_zz(dcomplex *r, dcomplex *a, dcomplex *b) 00076 { 00077 *r = __powzz(a->dreal, a->dimag, b->dreal, b->dimag); 00078 } 00079 00080 void pow_zz_(dcomplex *r, dcomplex *a, dcomplex *b) 00081 { 00082 *r = __powzz(a->dreal, a->dimag, b->dreal, b->dimag); 00083 } 00084 00085 void pow_zz__(dcomplex *r, dcomplex *a, dcomplex *b) 00086 { 00087 *r = __powzz(a->dreal, a->dimag, b->dreal, b->dimag); 00088 }