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1 /* |
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2 |
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3 Copyright (C) 2004 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if !defined (octave_inttypes_h) |
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24 #define octave_inttypes_h 1 |
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25 |
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26 #include <limits> |
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27 |
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28 #include <iostream> |
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29 |
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30 #include "data-conv.h" |
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31 |
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32 typedef signed char octave_int8_t; |
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33 typedef TWO_BYTE_INT octave_int16_t; |
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34 typedef FOUR_BYTE_INT octave_int32_t; |
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35 typedef EIGHT_BYTE_INT octave_int64_t; |
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36 |
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37 typedef unsigned char octave_uint8_t; |
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38 typedef unsigned TWO_BYTE_INT octave_uint16_t; |
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39 typedef unsigned FOUR_BYTE_INT octave_uint32_t; |
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40 typedef unsigned EIGHT_BYTE_INT octave_uint64_t; |
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41 |
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42 template <class T1, class T2> |
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43 class |
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44 octave_int_binop_traits |
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45 { |
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46 public: |
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47 // The return type for a T1 by T2 binary operation. |
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48 typedef T1 TR; |
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49 }; |
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50 |
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51 #define OCTAVE_INT_BINOP_TRAIT(T1, T2, T3) \ |
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52 template<> \ |
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53 class octave_int_binop_traits <T1, T2> \ |
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54 { \ |
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55 public: \ |
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56 typedef T3 TR; \ |
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57 } |
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58 |
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59 OCTAVE_INT_BINOP_TRAIT (octave_int8_t, octave_int8_t, octave_int8_t); |
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60 OCTAVE_INT_BINOP_TRAIT (octave_int8_t, octave_int16_t, octave_int8_t); |
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61 OCTAVE_INT_BINOP_TRAIT (octave_int8_t, octave_int32_t, octave_int8_t); |
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62 OCTAVE_INT_BINOP_TRAIT (octave_int8_t, octave_int64_t, octave_int8_t); |
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63 OCTAVE_INT_BINOP_TRAIT (octave_int8_t, octave_uint8_t, octave_int8_t); |
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64 OCTAVE_INT_BINOP_TRAIT (octave_int8_t, octave_uint16_t, octave_int8_t); |
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65 OCTAVE_INT_BINOP_TRAIT (octave_int8_t, octave_uint32_t, octave_int8_t); |
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66 OCTAVE_INT_BINOP_TRAIT (octave_int8_t, octave_uint64_t, octave_int8_t); |
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67 |
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68 OCTAVE_INT_BINOP_TRAIT (octave_int16_t, octave_int8_t, octave_int16_t); |
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69 OCTAVE_INT_BINOP_TRAIT (octave_int16_t, octave_int16_t, octave_int16_t); |
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70 OCTAVE_INT_BINOP_TRAIT (octave_int16_t, octave_int32_t, octave_int16_t); |
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71 OCTAVE_INT_BINOP_TRAIT (octave_int16_t, octave_int64_t, octave_int16_t); |
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72 OCTAVE_INT_BINOP_TRAIT (octave_int16_t, octave_uint8_t, octave_int16_t); |
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73 OCTAVE_INT_BINOP_TRAIT (octave_int16_t, octave_uint16_t, octave_int16_t); |
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74 OCTAVE_INT_BINOP_TRAIT (octave_int16_t, octave_uint32_t, octave_int16_t); |
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75 OCTAVE_INT_BINOP_TRAIT (octave_int16_t, octave_uint64_t, octave_int16_t); |
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76 |
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77 OCTAVE_INT_BINOP_TRAIT (octave_int32_t, octave_int8_t, octave_int32_t); |
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78 OCTAVE_INT_BINOP_TRAIT (octave_int32_t, octave_int16_t, octave_int32_t); |
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79 OCTAVE_INT_BINOP_TRAIT (octave_int32_t, octave_int32_t, octave_int32_t); |
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80 OCTAVE_INT_BINOP_TRAIT (octave_int32_t, octave_int64_t, octave_int32_t); |
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81 OCTAVE_INT_BINOP_TRAIT (octave_int32_t, octave_uint8_t, octave_int32_t); |
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82 OCTAVE_INT_BINOP_TRAIT (octave_int32_t, octave_uint16_t, octave_int32_t); |
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83 OCTAVE_INT_BINOP_TRAIT (octave_int32_t, octave_uint32_t, octave_int32_t); |
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84 OCTAVE_INT_BINOP_TRAIT (octave_int32_t, octave_uint64_t, octave_int32_t); |
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85 |
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86 OCTAVE_INT_BINOP_TRAIT (octave_int64_t, octave_int8_t, octave_int64_t); |
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87 OCTAVE_INT_BINOP_TRAIT (octave_int64_t, octave_int16_t, octave_int64_t); |
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88 OCTAVE_INT_BINOP_TRAIT (octave_int64_t, octave_int32_t, octave_int64_t); |
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89 OCTAVE_INT_BINOP_TRAIT (octave_int64_t, octave_int64_t, octave_int64_t); |
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90 OCTAVE_INT_BINOP_TRAIT (octave_int64_t, octave_uint8_t, octave_int64_t); |
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91 OCTAVE_INT_BINOP_TRAIT (octave_int64_t, octave_uint16_t, octave_int64_t); |
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92 OCTAVE_INT_BINOP_TRAIT (octave_int64_t, octave_uint32_t, octave_int64_t); |
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93 OCTAVE_INT_BINOP_TRAIT (octave_int64_t, octave_uint64_t, octave_int64_t); |
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94 |
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95 OCTAVE_INT_BINOP_TRAIT (octave_uint8_t, octave_int8_t, octave_int8_t); |
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96 OCTAVE_INT_BINOP_TRAIT (octave_uint8_t, octave_int16_t, octave_int8_t); |
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97 OCTAVE_INT_BINOP_TRAIT (octave_uint8_t, octave_int32_t, octave_int8_t); |
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98 OCTAVE_INT_BINOP_TRAIT (octave_uint8_t, octave_int64_t, octave_int8_t); |
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99 OCTAVE_INT_BINOP_TRAIT (octave_uint8_t, octave_uint8_t, octave_uint8_t); |
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100 OCTAVE_INT_BINOP_TRAIT (octave_uint8_t, octave_uint16_t, octave_uint8_t); |
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101 OCTAVE_INT_BINOP_TRAIT (octave_uint8_t, octave_uint32_t, octave_uint8_t); |
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102 OCTAVE_INT_BINOP_TRAIT (octave_uint8_t, octave_uint64_t, octave_uint8_t); |
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103 |
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104 OCTAVE_INT_BINOP_TRAIT (octave_uint16_t, octave_int8_t, octave_int16_t); |
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105 OCTAVE_INT_BINOP_TRAIT (octave_uint16_t, octave_int16_t, octave_int16_t); |
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106 OCTAVE_INT_BINOP_TRAIT (octave_uint16_t, octave_int32_t, octave_int16_t); |
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107 OCTAVE_INT_BINOP_TRAIT (octave_uint16_t, octave_int64_t, octave_int16_t); |
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108 OCTAVE_INT_BINOP_TRAIT (octave_uint16_t, octave_uint8_t, octave_uint16_t); |
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109 OCTAVE_INT_BINOP_TRAIT (octave_uint16_t, octave_uint16_t, octave_uint16_t); |
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110 OCTAVE_INT_BINOP_TRAIT (octave_uint16_t, octave_uint32_t, octave_uint16_t); |
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111 OCTAVE_INT_BINOP_TRAIT (octave_uint16_t, octave_uint64_t, octave_uint16_t); |
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112 |
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113 OCTAVE_INT_BINOP_TRAIT (octave_uint32_t, octave_int8_t, octave_int32_t); |
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114 OCTAVE_INT_BINOP_TRAIT (octave_uint32_t, octave_int16_t, octave_int32_t); |
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115 OCTAVE_INT_BINOP_TRAIT (octave_uint32_t, octave_int32_t, octave_int32_t); |
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116 OCTAVE_INT_BINOP_TRAIT (octave_uint32_t, octave_int64_t, octave_int32_t); |
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117 OCTAVE_INT_BINOP_TRAIT (octave_uint32_t, octave_uint8_t, octave_uint32_t); |
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118 OCTAVE_INT_BINOP_TRAIT (octave_uint32_t, octave_uint16_t, octave_uint32_t); |
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119 OCTAVE_INT_BINOP_TRAIT (octave_uint32_t, octave_uint32_t, octave_uint32_t); |
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120 OCTAVE_INT_BINOP_TRAIT (octave_uint32_t, octave_uint64_t, octave_uint32_t); |
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121 |
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122 OCTAVE_INT_BINOP_TRAIT (octave_uint64_t, octave_int8_t, octave_int64_t); |
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123 OCTAVE_INT_BINOP_TRAIT (octave_uint64_t, octave_int16_t, octave_int64_t); |
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124 OCTAVE_INT_BINOP_TRAIT (octave_uint64_t, octave_int32_t, octave_int64_t); |
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125 OCTAVE_INT_BINOP_TRAIT (octave_uint64_t, octave_int64_t, octave_int64_t); |
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126 OCTAVE_INT_BINOP_TRAIT (octave_uint64_t, octave_uint8_t, octave_uint64_t); |
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127 OCTAVE_INT_BINOP_TRAIT (octave_uint64_t, octave_uint16_t, octave_uint64_t); |
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128 OCTAVE_INT_BINOP_TRAIT (octave_uint64_t, octave_uint32_t, octave_uint64_t); |
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129 OCTAVE_INT_BINOP_TRAIT (octave_uint64_t, octave_uint64_t, octave_uint64_t); |
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130 |
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131 template <class T1, class T2> |
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132 inline T2 |
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133 octave_int_fit_to_range (const T1& x, const T2& mn, const T2& mx) |
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134 { |
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135 return (x > mx ? mx : (x < mn ? mn : static_cast<T2> (x))); |
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136 } |
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137 |
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138 // If X is unsigned and the new type is signed, then we only have to |
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139 // check the upper limit, but we should cast the maximum value of the |
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140 // new type to an unsigned type before performing the comparison. |
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141 // This should always be OK because the maximum value should always be |
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142 // positive. |
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143 |
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144 #define US_S_FTR(T1, T2, TC) \ |
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145 template <> \ |
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146 inline T2 \ |
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147 octave_int_fit_to_range<T1, T2> (const T1& x, const T2&, const T2& mx) \ |
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148 { \ |
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149 return x > static_cast<TC> (mx) ? mx : x; \ |
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150 } |
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151 |
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152 #define US_S_FTR_FCNS(T) \ |
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153 US_S_FTR(T, char, unsigned char) \ |
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154 US_S_FTR(T, signed char, unsigned char) \ |
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155 US_S_FTR(T, short, unsigned short) \ |
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156 US_S_FTR(T, int, unsigned int) \ |
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157 US_S_FTR(T, long, unsigned long) \ |
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158 US_S_FTR(T, long long, unsigned long long) |
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159 |
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160 US_S_FTR_FCNS (unsigned char) |
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161 US_S_FTR_FCNS (unsigned short) |
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162 US_S_FTR_FCNS (unsigned int) |
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163 US_S_FTR_FCNS (unsigned long) |
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164 US_S_FTR_FCNS (unsigned long long) |
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165 |
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166 // If X is signed and the new type is unsigned, then we only have to |
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167 // check the lower limit (which will always be 0 for an unsigned |
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168 // type). The upper limit will be enforced correctly by converting to |
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169 // the new type, even if the type of X is wider than the new type. |
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170 |
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171 #define S_US_FTR(T1, T2) \ |
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172 template <> \ |
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173 inline T2 \ |
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174 octave_int_fit_to_range<T1, T2> (const T1& x, const T2&, const T2&) \ |
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175 { \ |
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176 return x < 0 ? 0 : x; \ |
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177 } |
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178 |
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179 #define S_US_FTR_FCNS(T) \ |
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180 S_US_FTR(T, unsigned char) \ |
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181 S_US_FTR(T, unsigned short) \ |
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182 S_US_FTR(T, unsigned int) \ |
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183 S_US_FTR(T, unsigned long) \ |
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184 S_US_FTR(T, unsigned long long) |
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185 |
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186 S_US_FTR_FCNS (char) |
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187 S_US_FTR_FCNS (signed char) |
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188 S_US_FTR_FCNS (short) |
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189 S_US_FTR_FCNS (int) |
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190 S_US_FTR_FCNS (long) |
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191 S_US_FTR_FCNS (long long) |
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192 |
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193 #define OCTAVE_INT_FIT_TO_RANGE(r, T) \ |
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194 octave_int_fit_to_range (r, \ |
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195 std::numeric_limits<T>::min (), \ |
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196 std::numeric_limits<T>::max ()) |
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197 |
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198 #define OCTAVE_INT_MIN_VAL2(T1, T2) \ |
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199 std::numeric_limits<typename octave_int_binop_traits<T1, T2>::TR>::min () |
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200 |
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201 #define OCTAVE_INT_MAX_VAL2(T1, T2) \ |
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202 std::numeric_limits<typename octave_int_binop_traits<T1, T2>::TR>::max () |
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203 |
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204 #define OCTAVE_INT_FIT_TO_RANGE2(r, T1, T2) \ |
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205 octave_int_fit_to_range (r, \ |
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206 OCTAVE_INT_MIN_VAL2 (T1, T2), \ |
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207 OCTAVE_INT_MAX_VAL2 (T1, T2)) |
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208 |
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209 template <class T> |
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210 class |
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211 octave_int |
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212 { |
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213 public: |
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214 |
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215 typedef T val_type; |
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216 |
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217 octave_int (void) : ival () { } |
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218 |
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219 template <class U> |
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220 octave_int (U i) : ival (OCTAVE_INT_FIT_TO_RANGE (i, T)) { } |
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221 |
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222 octave_int (bool b) : ival (b) { } |
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223 |
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224 template <class U> |
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225 octave_int (const octave_int<U>& i) |
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226 : ival (OCTAVE_INT_FIT_TO_RANGE (i.value (), T)) { } |
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227 |
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228 octave_int (const octave_int<T>& i) : ival (i.ival) { } |
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229 |
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230 octave_int& operator = (const octave_int<T>& i) |
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231 { |
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232 ival = i.ival; |
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233 return *this; |
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234 } |
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235 |
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236 ~octave_int (void) { } |
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237 |
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238 T value (void) const { return ival; } |
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239 |
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240 const unsigned char * iptr (void) const |
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241 { return reinterpret_cast<const unsigned char *> (& ival); } |
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242 |
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243 bool operator ! (void) const { return ! ival; } |
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244 |
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245 octave_int<T> operator + (void) const { return *this; } |
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246 |
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247 octave_int<T> operator - (void) const |
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248 { |
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249 return std::numeric_limits<T>::is_signed ? -ival : 0; |
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250 } |
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251 |
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252 operator double (void) const { return static_cast<double> (value ()); } |
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253 |
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254 octave_int<T>& operator += (const octave_int<T>& x) |
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255 { |
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256 double t = static_cast<double> (value ()); |
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257 double tx = static_cast<double> (x.value ()); |
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258 ival = OCTAVE_INT_FIT_TO_RANGE (t + tx, T); |
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259 return *this; |
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260 } |
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261 |
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262 octave_int<T>& operator -= (const octave_int<T>& x) |
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263 { |
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264 double t = static_cast<double> (value ()); |
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265 double tx = static_cast<double> (x.value ()); |
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266 ival = OCTAVE_INT_FIT_TO_RANGE (t - tx, T); |
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267 return *this; |
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268 } |
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269 |
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270 octave_int<T>& operator *= (const octave_int<T>& x) |
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271 { |
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272 double t = static_cast<double> (value ()); |
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273 double tx = static_cast<double> (x.value ()); |
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274 ival = OCTAVE_INT_FIT_TO_RANGE (t * tx, T); |
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275 return *this; |
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276 } |
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277 |
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278 octave_int<T>& operator /= (const octave_int<T>& x) |
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279 { |
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280 double t = static_cast<double> (value ()); |
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281 double tx = static_cast<double> (x.value ()); |
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282 ival = OCTAVE_INT_FIT_TO_RANGE (t / tx, T); |
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283 return *this; |
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284 } |
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285 |
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286 template <class T2> |
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287 octave_int<T>& operator <<= (const T2& x) |
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288 { |
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289 ival = ((ival << x) > std::numeric_limits<T>::max ()) ? 0 : (ival << x); |
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290 return *this; |
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291 } |
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292 |
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293 template <class T2> |
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294 octave_int<T>& operator >>= (const T2& x) |
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295 { |
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296 ival >>= x; |
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297 return *this; |
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298 } |
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299 |
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300 octave_int<T> min (void) const { return std::numeric_limits<T>::min (); } |
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301 octave_int<T> max (void) const { return std::numeric_limits<T>::max (); } |
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302 |
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303 static int nbits (void) { return sizeof (T) * CHAR_BIT; } |
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304 |
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305 static int byte_size (void) { return sizeof(T); } |
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306 |
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307 private: |
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308 |
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309 T ival; |
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310 }; |
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311 |
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312 template <class T> |
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313 T |
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314 pow (const T& a, const T& b) |
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315 { |
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316 T retval; |
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317 |
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318 T zero = T (0); |
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319 T one = T (1); |
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320 |
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321 if (b == zero) |
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322 retval = one; |
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323 else if (b < zero) |
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324 retval = zero; |
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325 else |
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326 { |
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327 T a_val = a; |
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328 T b_val = b; |
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329 |
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330 retval = a; |
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331 |
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332 b_val -= 1; |
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333 |
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334 while (b_val) |
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335 { |
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336 if (b_val & one) |
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337 retval = retval * a_val; |
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338 |
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339 b_val = b_val >> 1; |
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340 |
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341 if (b_val > zero) |
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342 a_val = a_val * a_val; |
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343 } |
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344 } |
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345 |
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346 return retval; |
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347 } |
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348 |
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349 template <class T> |
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350 std::ostream& |
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351 operator << (std::ostream& os, const octave_int<T>& ival) |
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352 { |
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353 os << ival.value (); |
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354 return os; |
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355 } |
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356 |
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357 template <class T> |
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358 std::istream& |
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359 operator >> (std::istream& is, octave_int<T>& ival) |
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360 { |
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361 T tmp = 0; |
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362 is >> tmp; |
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363 ival = tmp; |
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364 return is; |
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365 } |
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366 |
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367 typedef octave_int<octave_int8_t> octave_int8; |
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368 typedef octave_int<octave_int16_t> octave_int16; |
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369 typedef octave_int<octave_int32_t> octave_int32; |
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370 typedef octave_int<octave_int64_t> octave_int64; |
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371 |
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372 typedef octave_int<octave_uint8_t> octave_uint8; |
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373 typedef octave_int<octave_uint16_t> octave_uint16; |
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374 typedef octave_int<octave_uint32_t> octave_uint32; |
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375 typedef octave_int<octave_uint64_t> octave_uint64; |
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376 |
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377 #define OCTAVE_INT_BIN_OP(OP) \ |
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378 \ |
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379 template <class T1, class T2> \ |
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380 octave_int<typename octave_int_binop_traits<T1, T2>::TR> \ |
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381 operator OP (const octave_int<T1>& x, const octave_int<T2>& y) \ |
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382 { \ |
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383 double tx = static_cast<double> (x.value ()); \ |
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384 double ty = static_cast<double> (y.value ()); \ |
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385 double r = tx OP ty; \ |
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386 return OCTAVE_INT_FIT_TO_RANGE2 (r, T1, T2); \ |
|
4906
|
387 } |
|
4902
|
388 |
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389 OCTAVE_INT_BIN_OP(+) |
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390 OCTAVE_INT_BIN_OP(-) |
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391 OCTAVE_INT_BIN_OP(*) |
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392 OCTAVE_INT_BIN_OP(/) |
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393 |
|
4906
|
394 #define OCTAVE_INT_BITCMP_OP(OP) \ |
|
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395 \ |
|
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396 template <class T> \ |
|
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397 octave_int<T> \ |
|
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398 operator OP (const octave_int<T>& x, const octave_int<T>& y) \ |
|
|
399 { \ |
|
|
400 return x.value () OP y.value (); \ |
|
|
401 } |
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|
402 |
|
|
403 OCTAVE_INT_BITCMP_OP (&) |
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|
404 OCTAVE_INT_BITCMP_OP (|) |
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|
405 OCTAVE_INT_BITCMP_OP (^) |
|
|
406 |
|
4952
|
407 template <class T1, class T2> |
|
|
408 octave_int<T1> |
|
|
409 operator << (const octave_int<T1>& x, const T2& y) |
|
|
410 { |
|
|
411 T1 retval = x; |
|
|
412 return retval <<= y; |
|
|
413 } |
|
4906
|
414 |
|
4952
|
415 template <class T1, class T2> |
|
|
416 octave_int<T1> |
|
|
417 operator >> (const octave_int<T1>& x, const T2& y) |
|
|
418 { |
|
|
419 T1 retval = x; |
|
|
420 return retval >>= y; |
|
|
421 } |
|
4906
|
422 |
|
4909
|
423 template <class T> |
|
|
424 octave_int<T> |
|
4920
|
425 bitshift (const octave_int<T>& a, int n, |
|
|
426 const octave_int<T>& mask = std::numeric_limits<T>::max ()) |
|
4909
|
427 { |
|
|
428 if (n > 0) |
|
4952
|
429 return (a << n) & mask; |
|
4909
|
430 else if (n < 0) |
|
4952
|
431 return (a >> -n) & mask; |
|
4909
|
432 else |
|
|
433 return a; |
|
|
434 } |
|
|
435 |
|
4902
|
436 #define OCTAVE_INT_CMP_OP(OP) \ |
|
|
437 \ |
|
|
438 template <class T1, class T2> \ |
|
|
439 bool \ |
|
|
440 operator OP (const octave_int<T1>& x, const octave_int<T2>& y) \ |
|
|
441 { \ |
|
|
442 return x.value () OP y.value (); \ |
|
4906
|
443 } |
|
4902
|
444 |
|
|
445 OCTAVE_INT_CMP_OP (<) |
|
|
446 OCTAVE_INT_CMP_OP (<=) |
|
|
447 OCTAVE_INT_CMP_OP (>=) |
|
|
448 OCTAVE_INT_CMP_OP (>) |
|
|
449 OCTAVE_INT_CMP_OP (==) |
|
|
450 OCTAVE_INT_CMP_OP (!=) |
|
|
451 |
|
4915
|
452 #define OCTAVE_INT_CONCAT_FN(TYPE) \ |
|
|
453 intNDArray< TYPE > \ |
|
|
454 concat (const intNDArray< TYPE >& ra, const intNDArray< TYPE >& rb, \ |
|
|
455 const Array<int>& ra_idx) \ |
|
|
456 { \ |
|
|
457 intNDArray< TYPE > retval (ra); \ |
|
|
458 retval.insert (rb, ra_idx); \ |
|
|
459 return retval; \ |
|
|
460 } |
|
|
461 |
|
|
462 #define OCTAVE_INT_CONCAT_DECL(TYPE) \ |
|
|
463 intNDArray< TYPE > \ |
|
|
464 concat (const intNDArray< TYPE >& ra, const intNDArray< TYPE >& rb, \ |
|
|
465 const Array<int>& ra_idx); |
|
|
466 |
|
4902
|
467 #undef OCTAVE_INT_TRAIT |
|
|
468 #undef OCTAVE_INT_BINOP_TRAIT |
|
|
469 #undef OCTAVE_INT_MIN_VAL |
|
|
470 #undef OCTAVE_INT_MAX_VAL |
|
|
471 #undef OCTAVE_INT_FIT_TO_RANGE |
|
|
472 #undef OCTAVE_INT_MIN_VAL2 |
|
|
473 #undef OCTAVE_INT_MAX_VAL2 |
|
|
474 #undef OCTAVE_INT_FIT_TO_RANGE2 |
|
|
475 #undef OCTAVE_INT_BIN_OP |
|
|
476 #undef OCTAVE_INT_CMP_OP |
|
|
477 |
|
|
478 #endif |
|
|
479 |
|
|
480 /* |
|
|
481 ;;; Local Variables: *** |
|
|
482 ;;; mode: C++ *** |
|
|
483 ;;; End: *** |
|
|
484 */ |
