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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 #define OCTAVE_INT_FIT_TO_RANGE(r, T) \ |
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139 octave_int_fit_to_range (r, std::numeric_limits<T>::min (), std::numeric_limits<T>::max ()) |
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140 |
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141 #define OCTAVE_INT_MIN_VAL2(T1, T2) \ |
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142 std::numeric_limits<typename octave_int_binop_traits<T1, T2>::TR>::min () |
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143 |
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144 #define OCTAVE_INT_MAX_VAL2(T1, T2) \ |
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145 std::numeric_limits<typename octave_int_binop_traits<T1, T2>::TR>::max () |
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146 |
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147 #define OCTAVE_INT_FIT_TO_RANGE2(r, T1, T2) \ |
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148 octave_int_fit_to_range (r, \ |
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149 OCTAVE_INT_MIN_VAL2 (T1, T2), \ |
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150 OCTAVE_INT_MAX_VAL2 (T1, T2)) |
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151 |
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152 template <class T> |
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153 class |
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154 octave_int |
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155 { |
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156 public: |
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157 |
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158 octave_int (void) : ival () { } |
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159 |
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160 template <class U> |
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161 octave_int (U i) : ival (OCTAVE_INT_FIT_TO_RANGE (i, T)) { } |
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162 |
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163 octave_int (bool b) : ival (b) { } |
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164 |
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165 template <class U> |
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166 octave_int (const octave_int<U>& i) |
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167 : ival (OCTAVE_INT_FIT_TO_RANGE (i.value (), T)) { } |
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168 |
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169 octave_int (const octave_int<T>& i) : ival (i.ival) { } |
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170 |
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171 octave_int& operator = (const octave_int<T>& i) |
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172 { |
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173 ival = i.ival; |
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174 return *this; |
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175 } |
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176 |
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177 ~octave_int (void) { } |
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178 |
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179 T value (void) const { return ival; } |
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180 |
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181 bool operator ! (void) const { return ! ival; } |
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182 |
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183 octave_int<T> operator + (void) const { return *this; } |
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184 |
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185 octave_int<T> operator - (void) const |
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186 { |
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187 return std::numeric_limits<T>::is_signed ? -ival : 0; |
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188 } |
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189 |
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190 operator double (void) const { return static_cast<double> (value ()); } |
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191 |
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192 octave_int<T>& operator += (const octave_int<T>& x) |
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193 { |
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194 double t = static_cast<double> (value ()); |
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195 double tx = static_cast<double> (x.value ()); |
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196 ival = OCTAVE_INT_FIT_TO_RANGE (t + tx, T); |
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197 return *this; |
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198 } |
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199 |
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200 octave_int<T>& operator -= (const octave_int<T>& x) |
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201 { |
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202 double t = static_cast<double> (value ()); |
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203 double tx = static_cast<double> (x.value ()); |
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204 ival = OCTAVE_INT_FIT_TO_RANGE (t - tx, T); |
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205 return *this; |
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206 } |
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207 |
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208 octave_int<T> min (void) const { return std::numeric_limits<T>::min (); } |
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209 octave_int<T> max (void) const { return std::numeric_limits<T>::max (); } |
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210 |
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211 int nbits (void) const { return sizeof (T) * CHAR_BIT; } |
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212 |
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213 private: |
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214 |
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215 T ival; |
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216 }; |
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217 |
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218 template <class T> |
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219 std::ostream& |
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220 operator << (std::ostream& os, const octave_int<T>& ival) |
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221 { |
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222 os << ival.value (); |
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223 return os; |
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224 } |
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225 |
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226 template <class T> |
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227 std::istream& |
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228 operator >> (std::istream& is, octave_int<T>& ival) |
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229 { |
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230 T tmp = 0; |
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231 is >> tmp; |
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232 ival = tmp; |
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233 return is; |
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234 } |
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235 |
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236 typedef octave_int<octave_int8_t> octave_int8; |
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237 typedef octave_int<octave_int16_t> octave_int16; |
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238 typedef octave_int<octave_int32_t> octave_int32; |
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239 typedef octave_int<octave_int64_t> octave_int64; |
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240 |
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241 typedef octave_int<octave_uint8_t> octave_uint8; |
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242 typedef octave_int<octave_uint16_t> octave_uint16; |
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243 typedef octave_int<octave_uint32_t> octave_uint32; |
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244 typedef octave_int<octave_uint64_t> octave_uint64; |
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245 |
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246 #define OCTAVE_INT_BIN_OP(OP) \ |
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247 \ |
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248 template <class T1, class T2> \ |
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249 octave_int<typename octave_int_binop_traits<T1, T2>::TR> \ |
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250 operator OP (const octave_int<T1>& x, const octave_int<T2>& y) \ |
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251 { \ |
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252 double tx = static_cast<double> (x.value ()); \ |
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253 double ty = static_cast<double> (y.value ()); \ |
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254 double r = tx OP ty; \ |
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255 return OCTAVE_INT_FIT_TO_RANGE2 (r, T1, T2); \ |
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256 } |
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257 |
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258 OCTAVE_INT_BIN_OP(+) |
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259 OCTAVE_INT_BIN_OP(-) |
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260 OCTAVE_INT_BIN_OP(*) |
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261 OCTAVE_INT_BIN_OP(/) |
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262 |
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263 #define OCTAVE_INT_BITCMP_OP(OP) \ |
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264 \ |
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265 template <class T> \ |
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266 octave_int<T> \ |
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267 operator OP (const octave_int<T>& x, const octave_int<T>& y) \ |
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268 { \ |
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269 return x.value () OP y.value (); \ |
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270 } |
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271 |
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272 OCTAVE_INT_BITCMP_OP (&) |
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273 OCTAVE_INT_BITCMP_OP (|) |
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274 OCTAVE_INT_BITCMP_OP (^) |
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275 |
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276 #define OCTAVE_INT_BITSHIFT_OP(OP) \ |
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277 \ |
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278 template <class T1, class T2> \ |
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279 octave_int<T1> \ |
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280 operator OP (const octave_int<T1>& x, const T2& y) \ |
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281 { \ |
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282 return x.value () OP y; \ |
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283 } |
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284 |
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285 OCTAVE_INT_BITSHIFT_OP (<<) |
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286 OCTAVE_INT_BITSHIFT_OP (>>) |
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287 |
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288 template <class T> |
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289 octave_int<T> |
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290 bitshift (const octave_int<T>& a, int n) |
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291 { |
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292 if (n > 0) |
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293 return a << n; |
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294 else if (n < 0) |
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295 return a >> -n; |
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296 else |
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297 return a; |
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298 } |
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299 |
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300 #define OCTAVE_INT_CMP_OP(OP) \ |
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301 \ |
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302 template <class T1, class T2> \ |
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303 bool \ |
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304 operator OP (const octave_int<T1>& x, const octave_int<T2>& y) \ |
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305 { \ |
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306 return x.value () OP y.value (); \ |
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307 } |
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308 |
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309 OCTAVE_INT_CMP_OP (<) |
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310 OCTAVE_INT_CMP_OP (<=) |
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311 OCTAVE_INT_CMP_OP (>=) |
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312 OCTAVE_INT_CMP_OP (>) |
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313 OCTAVE_INT_CMP_OP (==) |
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314 OCTAVE_INT_CMP_OP (!=) |
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315 |
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316 #undef OCTAVE_INT_TRAIT |
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317 #undef OCTAVE_INT_BINOP_TRAIT |
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318 #undef OCTAVE_INT_MIN_VAL |
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319 #undef OCTAVE_INT_MAX_VAL |
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320 #undef OCTAVE_INT_FIT_TO_RANGE |
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321 #undef OCTAVE_INT_MIN_VAL2 |
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322 #undef OCTAVE_INT_MAX_VAL2 |
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323 #undef OCTAVE_INT_FIT_TO_RANGE2 |
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324 #undef OCTAVE_INT_BIN_OP |
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325 #undef OCTAVE_INT_CMP_OP |
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326 |
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327 #endif |
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328 |
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329 /* |
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330 ;;; Local Variables: *** |
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331 ;;; mode: C++ *** |
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332 ;;; End: *** |
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333 */ |
