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annotate libquadmath/quadmath-imp.h @ 108:7ad14f446135

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add CbC-example/rectypeTest/
author Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
date Thu, 14 Jun 2012 20:30:24 +0900
parents 561a7518be6b
children 04ced10e8804
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68
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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1 /* GCC Quad-Precision Math Library
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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2 Copyright (C) 2010, 2011 Free Software Foundation, Inc.
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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3 Written by Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
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4
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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5 This file is part of the libquadmath library.
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6 Libquadmath is free software; you can redistribute it and/or
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7 modify it under the terms of the GNU Library General Public
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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8 License as published by the Free Software Foundation; either
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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9 version 2 of the License, or (at your option) any later version.
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10
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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11 Libquadmath is distributed in the hope that it will be useful,
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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14 Library General Public License for more details.
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15
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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16 You should have received a copy of the GNU Library General Public
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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17 License along with libquadmath; see the file COPYING.LIB. If
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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18 not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
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19 Boston, MA 02110-1301, USA. */
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20
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21 #ifndef QUADMATH_IMP_H
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22 #define QUADMATH_IMP_H
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23
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24 #include <stdint.h>
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25 #include <stdlib.h>
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26 #include "quadmath.h"
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27 #include "config.h"
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28
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29
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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30 /* Prototypes for internal functions. */
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31 extern int32_t __quadmath_rem_pio2q (__float128, __float128 *);
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32 extern void __quadmath_kernel_sincosq (__float128, __float128, __float128 *,
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33 __float128 *, int);
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34 extern __float128 __quadmath_kernel_sinq (__float128, __float128, int);
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35 extern __float128 __quadmath_kernel_cosq (__float128, __float128);
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36
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37
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38
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39 /* Frankly, if you have __float128, you have 64-bit integers, right? */
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40 #ifndef UINT64_C
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41 # error "No way!"
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42 #endif
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43
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44
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45 /* Main union type we use to manipulate the floating-point type. */
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46 typedef union
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47 {
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48 __float128 value;
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49
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50 struct
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51 {
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52 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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53 unsigned negative:1;
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54 unsigned exponent:15;
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55 uint64_t mant_high:48;
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56 uint64_t mant_low:64;
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57 #else
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58 uint64_t mant_low:64;
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59 uint64_t mant_high:48;
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60 unsigned exponent:15;
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61 unsigned negative:1;
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62 #endif
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63 } ieee;
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64
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65 struct
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66 {
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67 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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68 uint64_t high;
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69 uint64_t low;
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70 #else
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71 uint64_t low;
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72 uint64_t high;
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73 #endif
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74 } words64;
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75
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76 struct
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77 {
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78 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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79 uint32_t w0;
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80 uint32_t w1;
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81 uint32_t w2;
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82 uint32_t w3;
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83 #else
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84 uint32_t w3;
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85 uint32_t w2;
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86 uint32_t w1;
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87 uint32_t w0;
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88 #endif
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89 } words32;
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90
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91 struct
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92 {
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93 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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94 unsigned negative:1;
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95 unsigned exponent:15;
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96 unsigned quiet_nan:1;
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97 uint64_t mant_high:47;
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98 uint64_t mant_low:64;
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99 #else
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100 uint64_t mant_low:64;
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101 uint64_t mant_high:47;
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102 unsigned quiet_nan:1;
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103 unsigned exponent:15;
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104 unsigned negative:1;
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105 #endif
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106 } nan;
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107
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108 } ieee854_float128;
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109
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110
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111 /* Get two 64 bit ints from a long double. */
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112 #define GET_FLT128_WORDS64(ix0,ix1,d) \
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113 do { \
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114 ieee854_float128 u; \
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115 u.value = (d); \
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116 (ix0) = u.words64.high; \
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117 (ix1) = u.words64.low; \
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118 } while (0)
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119
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120 /* Set a long double from two 64 bit ints. */
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121 #define SET_FLT128_WORDS64(d,ix0,ix1) \
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122 do { \
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123 ieee854_float128 u; \
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124 u.words64.high = (ix0); \
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125 u.words64.low = (ix1); \
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126 (d) = u.value; \
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127 } while (0)
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128
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129 /* Get the more significant 64 bits of a long double mantissa. */
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130 #define GET_FLT128_MSW64(v,d) \
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131 do { \
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132 ieee854_float128 u; \
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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133 u.value = (d); \
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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134 (v) = u.words64.high; \
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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135 } while (0)
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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136
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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137 /* Set the more significant 64 bits of a long double mantissa from an int. */
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138 #define SET_FLT128_MSW64(d,v) \
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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139 do { \
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140 ieee854_float128 u; \
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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141 u.value = (d); \
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142 u.words64.high = (v); \
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143 (d) = u.value; \
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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144 } while (0)
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145
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146 /* Get the least significant 64 bits of a long double mantissa. */
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147 #define GET_FLT128_LSW64(v,d) \
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148 do { \
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149 ieee854_float128 u; \
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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150 u.value = (d); \
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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151 (v) = u.words64.low; \
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152 } while (0)
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153
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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154
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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155 #define IEEE854_FLOAT128_BIAS 0x3fff
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156
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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157 #define QUADFP_NAN 0
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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158 #define QUADFP_INFINITE 1
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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159 #define QUADFP_ZERO 2
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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160 #define QUADFP_SUBNORMAL 3
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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161 #define QUADFP_NORMAL 4
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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162 #define fpclassifyq(x) \
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163 __builtin_fpclassify (QUADFP_NAN, QUADFP_INFINITE, QUADFP_NORMAL, \
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164 QUADFP_SUBNORMAL, QUADFP_ZERO, x)
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165
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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166 #endif