sysdeps/ieee754/dbl-64/upow.h

   1 /*
   2  * IBM Accurate Mathematical Library
   3  * Written by International Business Machines Corp.
   4  * Copyright (C) 2001, 2002 Free Software Foundation, Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU Lesser General Public License as published by
   8  * the Free Software Foundation; either version 2.1 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 /******************************************************************/
  22 /*                                                                */
  23 /* MODULE_NAME:upow.h                                             */
  24 /*                                                                */
  25 /* common data and variables prototype and definition             */
  26 /******************************************************************/
  27
  28 #ifndef UPOW_H
  29 #define UPOW_H
  30
  31 #include "mydefs.h"
  32
  33 #ifdef BIG_ENDI
  34   const static mynumber
  35 /**/ nZERO          = {{0x80000000, 0}},          /* -0.0          */
  36 /**/ INF            = {{0x7ff00000, 0x00000000}}, /* INF           */
  37 /**/ nINF           = {{0xfff00000, 0x00000000}}, /* -INF          */
  38 /**/ NaNQ           = {{0x7ff80000, 0x00000000}}, /* NaNQ          */
  39 /**/ sqrt_2         = {{0x3ff6a09e, 0x667f3bcc}}, /* sqrt(2)       */
  40 /**/ ln2a           = {{0x3fe62e42, 0xfefa3800}}, /* ln(2) 43 bits */
  41 /**/ ln2b           = {{0x3d2ef357, 0x93c76730}}, /* ln(2)-ln2a    */
  42 /**/ bigu           = {{0x4297ffff, 0xfffffd2c}}, /* 1.5*2**42 -724*2**-10  */
  43 /**/ bigv           = {{0x4207ffff, 0xfff8016a}}, /* 1.5*2**33-1+362*2**-19  */
  44 /**/ t52            = {{0x43300000, 0x00000000}}, /* 2**52         */
  45 /**/ two52e         = {{0x43300000, 0x000003ff}}; /* 2**52'        */
  46
  47 #else
  48 #ifdef LITTLE_ENDI
  49   const static mynumber
  50 /**/ nZERO          = {{0, 0x80000000}},          /* -0.0          */
  51 /**/ INF            = {{0x00000000, 0x7ff00000}}, /* INF           */
  52 /**/ nINF           = {{0x00000000, 0xfff00000}}, /* -INF           */
  53 /**/ NaNQ           = {{0x00000000, 0x7ff80000}}, /* NaNQ          */
  54 /**/ sqrt_2         = {{0x667f3bcc, 0x3ff6a09e}}, /* sqrt(2)       */
  55 /**/ ln2a           = {{0xfefa3800, 0x3fe62e42}}, /* ln(2) 43 bits */
  56 /**/ ln2b           = {{0x93c76730, 0x3d2ef357}}, /* ln(2)-ln2a    */
  57 /**/ bigu           = {{0xfffffd2c, 0x4297ffff}}, /* 1.5*2**42 -724*2**-10  */
  58 /**/ bigv           = {{0xfff8016a, 0x4207ffff}}, /* 1.5*2**33-1+362*2**-19  */
  59 /**/ t52            = {{0x00000000, 0x43300000}}, /* 2**52         */
  60 /**/ two52e         = {{0x000003ff, 0x43300000}}; /* 2**52'        */
  61
  62 #endif
  63 #endif
  64
  65 const static double p2=-0.5, p3 =  3.3333333333333333333e-1, p4 = -0.25,
  66   q2 = -0.5, q3 = 3.3333333333331404e-01, q4 =  -2.4999999999996436e-01,
  67   q5 =  2.0000010500004459e-01, q6 =  -1.6666678916688004e-01,
  68   r3 =  3.33333333333333333372884096563030E-01,
  69   r4 = -2.50000000000000000213574153875908E-01,
  70   r5 =  1.99999999999683593814072199830603E-01,
  71   r6 = -1.66666666666065494878165510225378E-01,
  72   r7 =  1.42857517857114380606360005067609E-01,
  73   r8 = -1.25000449999974370683775964001702E-01,
  74   s3 =  0.333251953125000000e0,
  75  ss3 =  8.138020833333333333e-05,
  76   s4 = -2.500000000000000000e-01,
  77   s5 =  1.999999999999960937e-01,
  78   s6 = -1.666666666666592447e-01,
  79   s7 =  1.428571845238194705e-01,
  80   s8 = -1.250000500000149097e-01;
  81 #endif