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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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1960
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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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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2317
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28 #include <cctype> |
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29 |
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3503
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30 #include <iostream> |
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5760
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31 #include <vector> |
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32 |
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33 #include "byte-swap.h" |
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34 #include "data-conv.h" |
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35 #include "lo-error.h" |
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36 |
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4944
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37 #if defined HAVE_LONG_LONG_INT |
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38 #define FIND_SIZED_INT_TYPE(VAL, BITS, TQ, Q) \ |
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39 do \ |
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40 { \ |
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41 int sz = BITS / CHAR_BIT; \ |
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42 if (sizeof (TQ char) == sz) \ |
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43 VAL = oct_data_conv::dt_ ## Q ## char; \ |
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44 else if (sizeof (TQ short) == sz) \ |
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45 VAL = oct_data_conv::dt_ ## Q ## short; \ |
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46 else if (sizeof (TQ int) == sz) \ |
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47 VAL = oct_data_conv::dt_ ## Q ## int; \ |
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48 else if (sizeof (TQ long) == sz) \ |
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49 VAL = oct_data_conv::dt_ ## Q ## long; \ |
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50 else if (sizeof (TQ long long) == sz) \ |
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51 VAL = oct_data_conv::dt_ ## Q ## longlong; \ |
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52 else \ |
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53 VAL = oct_data_conv::dt_unknown; \ |
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54 } \ |
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55 while (0) |
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56 #else |
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3359
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57 #define FIND_SIZED_INT_TYPE(VAL, BITS, TQ, Q) \ |
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3358
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58 do \ |
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59 { \ |
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60 int sz = BITS / CHAR_BIT; \ |
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61 if (sizeof (TQ char) == sz) \ |
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62 VAL = oct_data_conv::dt_ ## Q ## char; \ |
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63 else if (sizeof (TQ short) == sz) \ |
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64 VAL = oct_data_conv::dt_ ## Q ## short; \ |
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65 else if (sizeof (TQ int) == sz) \ |
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66 VAL = oct_data_conv::dt_ ## Q ## int; \ |
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67 else if (sizeof (TQ long) == sz) \ |
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68 VAL = oct_data_conv::dt_ ## Q ## long; \ |
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69 else \ |
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70 VAL = oct_data_conv::dt_unknown; \ |
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71 } \ |
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72 while (0) |
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4944
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73 #endif |
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74 |
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75 #define FIND_SIZED_FLOAT_TYPE(VAL, BITS) \ |
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3358
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76 do \ |
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77 { \ |
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78 int sz = BITS / CHAR_BIT; \ |
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79 if (sizeof (float) == sz) \ |
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80 VAL = oct_data_conv::dt_float; \ |
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81 else if (sizeof (double) == sz) \ |
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82 VAL = oct_data_conv::dt_double; \ |
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83 else \ |
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84 VAL = oct_data_conv::dt_unknown; \ |
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85 } \ |
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86 while (0) |
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87 |
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88 // I'm not sure it is worth the trouble, but let's use a lookup table |
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89 // for the types that are supposed to be a specific number of bits |
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90 // wide. Given the macros above, this should work as long as CHAR_BIT |
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91 // is a multiple of 8 and there are types with the right sizes. |
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92 // |
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93 // The sized data type lookup table has the following format: |
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94 // |
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95 // bits |
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96 // +----+----+----+----+ |
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97 // | 8 | 16 | 32 | 64 | |
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98 // +----+----+----+----+ |
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99 // signed integer | | | | | |
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100 // +----+----+----+----+ |
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101 // unsigned integer | | | | | |
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102 // +----+----+----+----+ |
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103 // floating point | | | | | |
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104 // +----+----+----+----+ |
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105 // |
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106 // So, the 0,3 element is supposed to contain the oct_data_conv enum |
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107 // value corresponding to the correct native data type for a signed |
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108 // 32-bit integer. |
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109 |
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110 static void |
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111 init_sized_type_lookup_table (oct_data_conv::data_type table[3][4]) |
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112 { |
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113 int bits = 8; |
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114 |
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115 for (int i = 0; i < 4; i++) |
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116 { |
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117 FIND_SIZED_INT_TYPE (table[0][i], bits, , ); |
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118 |
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119 FIND_SIZED_INT_TYPE (table[1][i], bits, unsigned, u); |
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120 |
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121 FIND_SIZED_FLOAT_TYPE (table[2][i], bits); |
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122 |
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123 bits *= 2; |
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124 } |
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125 } |
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126 |
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127 static std::string |
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128 strip_spaces (const std::string& str) |
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129 { |
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130 int n = str.length (); |
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131 |
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132 int k = 0; |
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133 |
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134 std::string s (n, ' '); |
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135 |
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136 for (int i = 0; i < n; i++) |
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137 if (! isspace (str[i])) |
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138 s[k++] = tolower (str[i]); |
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139 |
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140 s.resize (k); |
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141 |
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142 return s; |
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143 } |
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144 |
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145 #define GET_SIZED_INT_TYPE(T, U) \ |
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146 do \ |
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147 { \ |
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148 switch (sizeof (T)) \ |
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149 { \ |
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150 case 1: \ |
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151 retval = dt_ ## U ## int8; \ |
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152 break; \ |
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153 \ |
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154 case 2: \ |
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155 retval = dt_ ## U ## int16; \ |
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156 break; \ |
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157 \ |
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158 case 4: \ |
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159 retval = dt_ ## U ## int32; \ |
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160 break; \ |
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161 \ |
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162 case 8: \ |
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163 retval = dt_ ## U ## int64; \ |
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164 break; \ |
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165 \ |
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166 default: \ |
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167 retval = dt_unknown; \ |
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168 break; \ |
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169 } \ |
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170 } \ |
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171 while (0) |
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172 |
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173 oct_data_conv::data_type |
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174 oct_data_conv::string_to_data_type (const std::string& str) |
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175 { |
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176 data_type retval = dt_unknown; |
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177 |
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178 static bool initialized = false; |
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179 |
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180 static data_type sized_type_table[3][4]; |
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181 |
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182 if (! initialized) |
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183 { |
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184 init_sized_type_lookup_table (sized_type_table); |
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185 |
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186 initialized = true; |
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187 } |
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188 |
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4944
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189 std::string s = strip_spaces (str); |
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190 |
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191 if (s == "int8" || s == "integer*1") |
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192 retval = dt_int8; |
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193 else if (s == "uint8") |
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194 retval = dt_uint8; |
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195 else if (s == "int16" || s == "integer*2") |
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196 retval = dt_int16; |
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197 else if (s == "uint16") |
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198 retval = dt_uint16; |
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199 else if (s == "int32" || s == "integer*4") |
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200 retval = dt_int32; |
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201 else if (s == "uint32") |
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202 retval = dt_uint32; |
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203 else if (s == "int64" || s == "integer*8") |
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204 retval = dt_int64; |
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205 else if (s == "uint64") |
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206 retval = dt_uint64; |
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207 else if (s == "single" || s == "float32" || s == "real*4") |
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208 retval = dt_single; |
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209 else if (s == "double" || s == "float64" || s == "real*8") |
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210 retval = dt_double; |
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211 else if (s == "char" || s == "char*1") |
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212 retval = dt_char; |
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213 else if (s == "schar" || s == "signedchar") |
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214 retval = dt_schar; |
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215 else if (s == "uchar" || s == "unsignedchar") |
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216 retval = dt_uchar; |
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217 else if (s == "short") |
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218 GET_SIZED_INT_TYPE (short, ); |
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219 else if (s == "ushort" || s == "unsignedshort") |
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220 GET_SIZED_INT_TYPE (unsigned short, u); |
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221 else if (s == "int") |
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222 GET_SIZED_INT_TYPE (int, ); |
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223 else if (s == "uint" || s == "unsignedint") |
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224 GET_SIZED_INT_TYPE (unsigned int, u); |
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225 else if (s == "long") |
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226 GET_SIZED_INT_TYPE (long, ); |
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227 else if (s == "ulong" || s == "unsignedlong") |
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228 GET_SIZED_INT_TYPE (unsigned long, u); |
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229 else if (s == "longlong") |
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230 GET_SIZED_INT_TYPE (long long, ); |
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231 else if (s == "ulonglong" || s == "unsignedlonglong") |
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232 GET_SIZED_INT_TYPE (unsigned long long, u); |
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233 else if (s == "float") |
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234 { |
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235 if (sizeof (float) == sizeof (double)) |
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236 retval = dt_double; |
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237 else |
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238 retval = dt_single; |
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239 } |
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240 else if (s == "logical") |
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241 retval = dt_logical; |
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242 else |
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243 (*current_liboctave_error_handler) ("invalid data type specified"); |
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244 |
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245 if (retval == dt_unknown) |
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246 (*current_liboctave_error_handler) |
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247 ("unable to find matching native data type for %s", s.c_str ()); |
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248 |
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249 return retval; |
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250 } |
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251 |
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4944
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252 void |
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253 oct_data_conv::string_to_data_type |
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254 (const std::string& str, int& block_size, |
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255 oct_data_conv::data_type& input_type, |
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256 oct_data_conv::data_type& output_type) |
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257 { |
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258 block_size = 1; |
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259 input_type = dt_uchar; |
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260 output_type = dt_double; |
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261 |
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262 bool input_is_output = false; |
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263 |
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264 std::string s = strip_spaces (str); |
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265 |
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266 size_t pos = 0; |
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267 |
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268 if (s[0] == '*') |
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269 input_is_output = true; |
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270 else |
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271 { |
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272 size_t len = s.length (); |
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273 |
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274 while (pos < len && isdigit (s[pos])) |
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275 pos++; |
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276 |
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277 if (pos > 0) |
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278 { |
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279 if (s[pos] == '*') |
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280 { |
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281 block_size = atoi (s.c_str ()); |
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282 s = s.substr (pos+1); |
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283 } |
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284 else |
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285 { |
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286 (*current_liboctave_error_handler) |
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287 ("invalid repeat count in `%s'", str.c_str ()); |
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288 |
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289 return; |
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290 } |
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291 } |
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292 } |
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293 |
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294 pos = s.find ('='); |
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295 |
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296 if (pos != std::string::npos) |
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297 { |
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298 if (s[pos+1] == '>') |
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299 { |
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300 if (input_is_output) |
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301 { |
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302 input_is_output = false; |
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303 |
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304 (*current_liboctave_warning_handler) |
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305 ("warning: ignoring leading * in fread precision"); |
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306 } |
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307 |
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308 input_type = string_to_data_type (s.substr (0, pos)); |
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309 output_type = string_to_data_type (s.substr (pos+2)); |
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310 } |
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311 else |
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312 (*current_liboctave_error_handler) |
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313 ("fread: invalid precision specified"); |
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314 } |
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315 else |
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316 { |
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317 input_type = string_to_data_type (s); |
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318 |
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319 if (input_is_output) |
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320 output_type = input_type; |
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321 } |
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322 } |
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323 |
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324 void |
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325 oct_data_conv::string_to_data_type |
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326 (const std::string& str, int& block_size, |
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327 oct_data_conv::data_type& output_type) |
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328 { |
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329 block_size = 1; |
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330 output_type = dt_double; |
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331 |
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332 std::string s = strip_spaces (str); |
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333 |
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334 size_t pos = 0; |
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335 |
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336 size_t len = s.length (); |
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337 |
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338 while (pos < len && isdigit (s[pos])) |
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339 pos++; |
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340 |
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341 if (pos > 0) |
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342 { |
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343 if (s[pos] == '*') |
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344 { |
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345 block_size = atoi (s.c_str ()); |
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346 s = s.substr (pos+1); |
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347 } |
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348 else |
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349 { |
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350 (*current_liboctave_error_handler) |
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351 ("invalid repeat count in `%s'", str.c_str ()); |
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352 |
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353 return; |
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354 } |
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355 } |
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356 |
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357 output_type = string_to_data_type (s); |
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358 } |
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359 |
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360 std::string |
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361 oct_data_conv::data_type_as_string (oct_data_conv::data_type dt) |
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362 { |
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363 std::string retval; |
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364 |
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365 switch (dt) |
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366 { |
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367 case oct_data_conv::dt_int8: |
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368 retval = "int8"; |
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369 break; |
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370 |
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371 case oct_data_conv::dt_uint8: |
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372 retval = "uint8"; |
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373 break; |
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374 |
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375 case oct_data_conv::dt_int16: |
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376 retval = "int16"; |
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377 break; |
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378 |
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379 case oct_data_conv::dt_uint16: |
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380 retval = "uint16"; |
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381 break; |
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382 |
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383 case oct_data_conv::dt_int32: |
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384 retval = "int32"; |
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385 break; |
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386 |
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387 case oct_data_conv::dt_uint32: |
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388 retval = "uint32"; |
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389 break; |
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390 |
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391 case oct_data_conv::dt_int64: |
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392 retval = "int64"; |
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393 break; |
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394 |
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395 case oct_data_conv::dt_uint64: |
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396 retval = "uint64"; |
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397 break; |
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398 |
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399 case oct_data_conv::dt_single: |
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400 retval = "single"; |
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401 break; |
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402 |
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403 case oct_data_conv::dt_double: |
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404 retval = "double"; |
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405 break; |
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406 |
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407 case oct_data_conv::dt_char: |
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408 retval = "char"; |
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409 break; |
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410 |
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411 case oct_data_conv::dt_schar: |
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412 retval = "signed char"; |
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413 break; |
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414 |
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415 case oct_data_conv::dt_uchar: |
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416 retval = "usigned char"; |
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417 break; |
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418 |
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419 case oct_data_conv::dt_short: |
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420 retval = "short"; |
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421 break; |
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422 |
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423 case oct_data_conv::dt_ushort: |
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424 retval = "unsigned short"; |
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425 break; |
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426 |
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427 case oct_data_conv::dt_int: |
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428 retval = "int"; |
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429 break; |
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430 |
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431 case oct_data_conv::dt_uint: |
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432 retval = "usigned int"; |
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433 break; |
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434 |
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435 case oct_data_conv::dt_long: |
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436 retval = "long"; |
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437 break; |
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438 |
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439 case oct_data_conv::dt_ulong: |
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440 retval = "usigned long"; |
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441 break; |
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442 |
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443 case oct_data_conv::dt_longlong: |
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444 retval = "long long"; |
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445 break; |
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446 |
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447 case oct_data_conv::dt_ulonglong: |
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448 retval = "unsigned long long"; |
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449 break; |
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450 |
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451 case oct_data_conv::dt_float: |
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452 retval = "float"; |
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453 break; |
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454 |
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4970
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455 case oct_data_conv::dt_logical: |
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456 retval = "logical"; |
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457 break; |
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458 |
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4944
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459 case oct_data_conv::dt_unknown: |
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460 default: |
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461 retval = "unknown"; |
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462 break; |
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463 } |
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464 |
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465 return retval; |
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466 } |
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1960
|
467 |
|
3359
|
468 #define LS_DO_READ(TYPE, swap, data, size, len, stream) \ |
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1960
|
469 do \ |
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|
470 { \ |
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3867
|
471 if (len > 0) \ |
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472 { \ |
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5760
|
473 OCTAVE_LOCAL_BUFFER (TYPE, ptr, len); \ |
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474 stream.read (reinterpret_cast<char *> (ptr), size * len); \ |
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3867
|
475 if (swap) \ |
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4944
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476 swap_bytes< size > (ptr, len); \ |
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5760
|
477 for (int i = 0; i < len; i++) \ |
|
3867
|
478 data[i] = ptr[i]; \ |
|
|
479 } \ |
|
1960
|
480 } \ |
|
|
481 while (0) |
|
|
482 |
|
|
483 // Have to use copy here to avoid writing over data accessed via |
|
|
484 // Matrix::data(). |
|
|
485 |
|
3359
|
486 #define LS_DO_WRITE(TYPE, data, size, len, stream) \ |
|
1960
|
487 do \ |
|
|
488 { \ |
|
3867
|
489 if (len > 0) \ |
|
|
490 { \ |
|
5760
|
491 char tmp_type = type; \ |
|
3867
|
492 stream.write (&tmp_type, 1); \ |
|
5760
|
493 OCTAVE_LOCAL_BUFFER (TYPE, ptr, len); \ |
|
3867
|
494 for (int i = 0; i < len; i++) \ |
|
5760
|
495 ptr[i] = static_cast <TYPE> (data[i]); \ |
|
|
496 stream.write (reinterpret_cast<char *> (ptr), size * len); \ |
|
3867
|
497 } \ |
|
1960
|
498 } \ |
|
|
499 while (0) |
|
|
500 |
|
|
501 // Loading variables from files. |
|
|
502 |
|
|
503 static void |
|
|
504 gripe_unrecognized_float_fmt (void) |
|
|
505 { |
|
|
506 (*current_liboctave_error_handler) |
|
|
507 ("unrecognized floating point format requested"); |
|
|
508 } |
|
|
509 |
|
|
510 static void |
|
|
511 gripe_data_conversion (const char *from, const char *to) |
|
|
512 { |
|
|
513 (*current_liboctave_error_handler) |
|
|
514 ("unable to convert from %s to %s format", from, to); |
|
|
515 } |
|
|
516 |
|
|
517 // But first, some data conversion routines. |
|
|
518 |
|
|
519 // Currently, we only handle conversions for the IEEE types. To fix |
|
|
520 // that, make more of the following routines work. |
|
|
521 |
|
5775
|
522 // FIXME -- assumes sizeof (Complex) == 8 |
|
|
523 // FIXME -- assumes sizeof (double) == 8 |
|
|
524 // FIXME -- assumes sizeof (float) == 4 |
|
1960
|
525 |
|
|
526 static void |
|
4944
|
527 IEEE_big_double_to_IEEE_little_double (void *d, int len) |
|
1960
|
528 { |
|
4944
|
529 swap_bytes<8> (d, len); |
|
1960
|
530 } |
|
|
531 |
|
|
532 static void |
|
4944
|
533 VAX_D_double_to_IEEE_little_double (void * /* d */, int /* len */) |
|
1960
|
534 { |
|
|
535 gripe_data_conversion ("VAX D float", "IEEE little endian format"); |
|
|
536 } |
|
|
537 |
|
|
538 static void |
|
4944
|
539 VAX_G_double_to_IEEE_little_double (void * /* d */, int /* len */) |
|
1960
|
540 { |
|
|
541 gripe_data_conversion ("VAX G float", "IEEE little endian format"); |
|
|
542 } |
|
|
543 |
|
|
544 static void |
|
4944
|
545 Cray_to_IEEE_little_double (void * /* d */, int /* len */) |
|
1960
|
546 { |
|
|
547 gripe_data_conversion ("Cray", "IEEE little endian format"); |
|
|
548 } |
|
|
549 |
|
|
550 static void |
|
4944
|
551 IEEE_big_float_to_IEEE_little_float (void *d, int len) |
|
1960
|
552 { |
|
4944
|
553 swap_bytes<4> (d, len); |
|
1960
|
554 } |
|
|
555 |
|
|
556 static void |
|
4944
|
557 VAX_D_float_to_IEEE_little_float (void * /* d */, int /* len */) |
|
1960
|
558 { |
|
|
559 gripe_data_conversion ("VAX D float", "IEEE little endian format"); |
|
|
560 } |
|
|
561 |
|
|
562 static void |
|
4944
|
563 VAX_G_float_to_IEEE_little_float (void * /* d */, int /* len */) |
|
1960
|
564 { |
|
|
565 gripe_data_conversion ("VAX G float", "IEEE little endian format"); |
|
|
566 } |
|
|
567 |
|
|
568 static void |
|
4944
|
569 Cray_to_IEEE_little_float (void * /* d */, int /* len */) |
|
1960
|
570 { |
|
|
571 gripe_data_conversion ("Cray", "IEEE little endian format"); |
|
|
572 } |
|
|
573 |
|
|
574 static void |
|
4944
|
575 IEEE_little_double_to_IEEE_big_double (void *d, int len) |
|
1960
|
576 { |
|
4944
|
577 swap_bytes<8> (d, len); |
|
1960
|
578 } |
|
|
579 |
|
|
580 static void |
|
4944
|
581 VAX_D_double_to_IEEE_big_double (void * /* d */, int /* len */) |
|
1960
|
582 { |
|
|
583 gripe_data_conversion ("VAX D float", "IEEE big endian format"); |
|
|
584 } |
|
|
585 |
|
|
586 static void |
|
4944
|
587 VAX_G_double_to_IEEE_big_double (void * /* d */, int /* len */) |
|
1960
|
588 { |
|
|
589 gripe_data_conversion ("VAX G float", "IEEE big endian format"); |
|
|
590 } |
|
|
591 |
|
|
592 static void |
|
4944
|
593 Cray_to_IEEE_big_double (void * /* d */, int /* len */) |
|
1960
|
594 { |
|
|
595 gripe_data_conversion ("Cray", "IEEE big endian format"); |
|
|
596 } |
|
|
597 |
|
|
598 static void |
|
4944
|
599 IEEE_little_float_to_IEEE_big_float (void *d, int len) |
|
1960
|
600 { |
|
4944
|
601 swap_bytes<4> (d, len); |
|
1960
|
602 } |
|
|
603 |
|
|
604 static void |
|
4944
|
605 VAX_D_float_to_IEEE_big_float (void * /* d */, int /* len */) |
|
1960
|
606 { |
|
|
607 gripe_data_conversion ("VAX D float", "IEEE big endian format"); |
|
|
608 } |
|
|
609 |
|
|
610 static void |
|
4944
|
611 VAX_G_float_to_IEEE_big_float (void * /* d */, int /* len */) |
|
1960
|
612 { |
|
|
613 gripe_data_conversion ("VAX G float", "IEEE big endian format"); |
|
|
614 } |
|
|
615 |
|
|
616 static void |
|
4944
|
617 Cray_to_IEEE_big_float (void * /* d */, int /* len */) |
|
1960
|
618 { |
|
|
619 gripe_data_conversion ("Cray", "IEEE big endian format"); |
|
|
620 } |
|
|
621 |
|
|
622 static void |
|
4944
|
623 IEEE_little_double_to_VAX_D_double (void * /* d */, int /* len */) |
|
1960
|
624 { |
|
|
625 gripe_data_conversion ("IEEE little endian", "VAX D"); |
|
|
626 } |
|
|
627 |
|
|
628 static void |
|
4944
|
629 IEEE_big_double_to_VAX_D_double (void * /* d */, int /* len */) |
|
1960
|
630 { |
|
|
631 gripe_data_conversion ("IEEE big endian", "VAX D"); |
|
|
632 } |
|
|
633 |
|
|
634 static void |
|
4944
|
635 VAX_G_double_to_VAX_D_double (void * /* d */, int /* len */) |
|
1960
|
636 { |
|
|
637 gripe_data_conversion ("VAX G float", "VAX D"); |
|
|
638 } |
|
|
639 |
|
|
640 static void |
|
4944
|
641 Cray_to_VAX_D_double (void * /* d */, int /* len */) |
|
1960
|
642 { |
|
|
643 gripe_data_conversion ("Cray", "VAX D"); |
|
|
644 } |
|
|
645 |
|
|
646 static void |
|
4944
|
647 IEEE_little_float_to_VAX_D_float (void * /* d */, int /* len */) |
|
1960
|
648 { |
|
|
649 gripe_data_conversion ("IEEE little endian", "VAX D"); |
|
|
650 } |
|
|
651 |
|
|
652 static void |
|
4944
|
653 IEEE_big_float_to_VAX_D_float (void * /* d */, int /* len */) |
|
1960
|
654 { |
|
|
655 gripe_data_conversion ("IEEE big endian", "VAX D"); |
|
|
656 } |
|
|
657 |
|
|
658 static void |
|
4944
|
659 VAX_G_float_to_VAX_D_float (void * /* d */, int /* len */) |
|
1960
|
660 { |
|
|
661 gripe_data_conversion ("VAX G float", "VAX D"); |
|
|
662 } |
|
|
663 |
|
|
664 static void |
|
4944
|
665 Cray_to_VAX_D_float (void * /* d */, int /* len */) |
|
1960
|
666 { |
|
|
667 gripe_data_conversion ("Cray", "VAX D"); |
|
|
668 } |
|
|
669 |
|
|
670 static void |
|
4944
|
671 IEEE_little_double_to_VAX_G_double (void * /* d */, int /* len */) |
|
1960
|
672 { |
|
|
673 gripe_data_conversion ("IEEE little endian", "VAX G"); |
|
|
674 } |
|
|
675 |
|
|
676 static void |
|
4944
|
677 IEEE_big_double_to_VAX_G_double (void * /* d */, int /* len */) |
|
1960
|
678 { |
|
|
679 gripe_data_conversion ("IEEE big endian", "VAX G"); |
|
|
680 } |
|
|
681 |
|
|
682 static void |
|
4944
|
683 VAX_D_double_to_VAX_G_double (void * /* d */, int /* len */) |
|
1960
|
684 { |
|
|
685 gripe_data_conversion ("VAX D float", "VAX G"); |
|
|
686 } |
|
|
687 |
|
|
688 static void |
|
4944
|
689 Cray_to_VAX_G_double (void * /* d */, int /* len */) |
|
1960
|
690 { |
|
|
691 gripe_data_conversion ("VAX G float", "VAX G"); |
|
|
692 } |
|
|
693 |
|
|
694 static void |
|
4944
|
695 IEEE_little_float_to_VAX_G_float (void * /* d */, int /* len */) |
|
1960
|
696 { |
|
|
697 gripe_data_conversion ("IEEE little endian", "VAX G"); |
|
|
698 } |
|
|
699 |
|
|
700 static void |
|
4944
|
701 IEEE_big_float_to_VAX_G_float (void * /* d */, int /* len */) |
|
1960
|
702 { |
|
|
703 gripe_data_conversion ("IEEE big endian", "VAX G"); |
|
|
704 } |
|
|
705 |
|
|
706 static void |
|
4944
|
707 VAX_D_float_to_VAX_G_float (void * /* d */, int /* len */) |
|
1960
|
708 { |
|
|
709 gripe_data_conversion ("VAX D float", "VAX G"); |
|
|
710 } |
|
|
711 |
|
|
712 static void |
|
4944
|
713 Cray_to_VAX_G_float (void * /* d */, int /* len */) |
|
1960
|
714 { |
|
|
715 gripe_data_conversion ("VAX G float", "VAX G"); |
|
|
716 } |
|
|
717 |
|
|
718 void |
|
4944
|
719 do_double_format_conversion (void *data, int len, |
|
|
720 oct_mach_info::float_format from_fmt, |
|
|
721 oct_mach_info::float_format to_fmt) |
|
1960
|
722 { |
|
4944
|
723 switch (to_fmt) |
|
1960
|
724 { |
|
4574
|
725 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
4944
|
726 switch (from_fmt) |
|
1960
|
727 { |
|
4574
|
728 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
729 break; |
|
|
730 |
|
4574
|
731 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
732 IEEE_big_double_to_IEEE_little_double (data, len); |
|
|
733 break; |
|
|
734 |
|
4574
|
735 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
736 VAX_D_double_to_IEEE_little_double (data, len); |
|
|
737 break; |
|
|
738 |
|
4574
|
739 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
740 VAX_G_double_to_IEEE_little_double (data, len); |
|
|
741 break; |
|
|
742 |
|
4574
|
743 case oct_mach_info::flt_fmt_cray: |
|
1960
|
744 Cray_to_IEEE_little_double (data, len); |
|
|
745 break; |
|
|
746 |
|
|
747 default: |
|
|
748 gripe_unrecognized_float_fmt (); |
|
|
749 break; |
|
|
750 } |
|
|
751 break; |
|
|
752 |
|
4574
|
753 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
4944
|
754 switch (from_fmt) |
|
1960
|
755 { |
|
4574
|
756 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
757 IEEE_little_double_to_IEEE_big_double (data, len); |
|
|
758 break; |
|
|
759 |
|
4574
|
760 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
761 break; |
|
|
762 |
|
4574
|
763 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
764 VAX_D_double_to_IEEE_big_double (data, len); |
|
|
765 break; |
|
|
766 |
|
4574
|
767 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
768 VAX_G_double_to_IEEE_big_double (data, len); |
|
|
769 break; |
|
|
770 |
|
4574
|
771 case oct_mach_info::flt_fmt_cray: |
|
1960
|
772 Cray_to_IEEE_big_double (data, len); |
|
|
773 break; |
|
|
774 |
|
|
775 default: |
|
|
776 gripe_unrecognized_float_fmt (); |
|
|
777 break; |
|
|
778 } |
|
|
779 break; |
|
|
780 |
|
4574
|
781 case oct_mach_info::flt_fmt_vax_d: |
|
4944
|
782 switch (from_fmt) |
|
1960
|
783 { |
|
4574
|
784 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
785 IEEE_little_double_to_VAX_D_double (data, len); |
|
|
786 break; |
|
|
787 |
|
4574
|
788 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
789 IEEE_big_double_to_VAX_D_double (data, len); |
|
|
790 break; |
|
|
791 |
|
4574
|
792 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
793 break; |
|
|
794 |
|
4574
|
795 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
796 VAX_G_double_to_VAX_D_double (data, len); |
|
|
797 break; |
|
|
798 |
|
4574
|
799 case oct_mach_info::flt_fmt_cray: |
|
1960
|
800 Cray_to_VAX_D_double (data, len); |
|
|
801 break; |
|
|
802 |
|
|
803 default: |
|
|
804 gripe_unrecognized_float_fmt (); |
|
|
805 break; |
|
|
806 } |
|
|
807 break; |
|
|
808 |
|
4574
|
809 case oct_mach_info::flt_fmt_vax_g: |
|
4944
|
810 switch (from_fmt) |
|
1960
|
811 { |
|
4574
|
812 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
813 IEEE_little_double_to_VAX_G_double (data, len); |
|
|
814 break; |
|
|
815 |
|
4574
|
816 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
817 IEEE_big_double_to_VAX_G_double (data, len); |
|
|
818 break; |
|
|
819 |
|
4574
|
820 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
821 VAX_D_double_to_VAX_G_double (data, len); |
|
|
822 break; |
|
|
823 |
|
4574
|
824 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
825 break; |
|
|
826 |
|
4574
|
827 case oct_mach_info::flt_fmt_cray: |
|
1960
|
828 Cray_to_VAX_G_double (data, len); |
|
|
829 break; |
|
|
830 |
|
|
831 default: |
|
|
832 gripe_unrecognized_float_fmt (); |
|
|
833 break; |
|
|
834 } |
|
|
835 break; |
|
|
836 |
|
|
837 default: |
|
|
838 (*current_liboctave_error_handler) |
|
|
839 ("impossible state reached in file `%s' at line %d", |
|
|
840 __FILE__, __LINE__); |
|
|
841 break; |
|
|
842 } |
|
|
843 } |
|
|
844 |
|
|
845 void |
|
4944
|
846 do_float_format_conversion (void *data, int len, |
|
|
847 oct_mach_info::float_format from_fmt, |
|
|
848 oct_mach_info::float_format to_fmt) |
|
1960
|
849 { |
|
4944
|
850 switch (to_fmt) |
|
1960
|
851 { |
|
4574
|
852 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
4944
|
853 switch (from_fmt) |
|
1960
|
854 { |
|
4574
|
855 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
856 break; |
|
|
857 |
|
4574
|
858 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
859 IEEE_big_float_to_IEEE_little_float (data, len); |
|
|
860 break; |
|
|
861 |
|
4574
|
862 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
863 VAX_D_float_to_IEEE_little_float (data, len); |
|
|
864 break; |
|
|
865 |
|
4574
|
866 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
867 VAX_G_float_to_IEEE_little_float (data, len); |
|
|
868 break; |
|
|
869 |
|
4574
|
870 case oct_mach_info::flt_fmt_cray: |
|
1960
|
871 Cray_to_IEEE_little_float (data, len); |
|
|
872 break; |
|
|
873 |
|
|
874 default: |
|
|
875 gripe_unrecognized_float_fmt (); |
|
|
876 break; |
|
|
877 } |
|
|
878 break; |
|
|
879 |
|
4574
|
880 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
4944
|
881 switch (from_fmt) |
|
1960
|
882 { |
|
4574
|
883 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
884 IEEE_little_float_to_IEEE_big_float (data, len); |
|
|
885 break; |
|
|
886 |
|
4574
|
887 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
888 break; |
|
|
889 |
|
4574
|
890 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
891 VAX_D_float_to_IEEE_big_float (data, len); |
|
|
892 break; |
|
|
893 |
|
4574
|
894 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
895 VAX_G_float_to_IEEE_big_float (data, len); |
|
|
896 break; |
|
|
897 |
|
4574
|
898 case oct_mach_info::flt_fmt_cray: |
|
1960
|
899 Cray_to_IEEE_big_float (data, len); |
|
|
900 break; |
|
|
901 |
|
|
902 default: |
|
|
903 gripe_unrecognized_float_fmt (); |
|
|
904 break; |
|
|
905 } |
|
|
906 break; |
|
|
907 |
|
4574
|
908 case oct_mach_info::flt_fmt_vax_d: |
|
4944
|
909 switch (from_fmt) |
|
1960
|
910 { |
|
4574
|
911 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
912 IEEE_little_float_to_VAX_D_float (data, len); |
|
|
913 break; |
|
|
914 |
|
4574
|
915 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
916 IEEE_big_float_to_VAX_D_float (data, len); |
|
|
917 break; |
|
|
918 |
|
4574
|
919 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
920 break; |
|
|
921 |
|
4574
|
922 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
923 VAX_G_float_to_VAX_D_float (data, len); |
|
|
924 break; |
|
|
925 |
|
4574
|
926 case oct_mach_info::flt_fmt_cray: |
|
1960
|
927 Cray_to_VAX_D_float (data, len); |
|
|
928 break; |
|
|
929 |
|
|
930 default: |
|
|
931 gripe_unrecognized_float_fmt (); |
|
|
932 break; |
|
|
933 } |
|
|
934 break; |
|
|
935 |
|
4574
|
936 case oct_mach_info::flt_fmt_vax_g: |
|
4944
|
937 switch (from_fmt) |
|
1960
|
938 { |
|
4574
|
939 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
940 IEEE_little_float_to_VAX_G_float (data, len); |
|
|
941 break; |
|
|
942 |
|
4574
|
943 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
944 IEEE_big_float_to_VAX_G_float (data, len); |
|
|
945 break; |
|
|
946 |
|
4574
|
947 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
948 VAX_D_float_to_VAX_G_float (data, len); |
|
|
949 break; |
|
|
950 |
|
4574
|
951 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
952 break; |
|
|
953 |
|
4574
|
954 case oct_mach_info::flt_fmt_cray: |
|
1960
|
955 Cray_to_VAX_G_float (data, len); |
|
|
956 break; |
|
|
957 |
|
|
958 default: |
|
|
959 gripe_unrecognized_float_fmt (); |
|
|
960 break; |
|
|
961 } |
|
|
962 break; |
|
|
963 |
|
|
964 default: |
|
|
965 (*current_liboctave_error_handler) |
|
|
966 ("impossible state reached in file `%s' at line %d", |
|
|
967 __FILE__, __LINE__); |
|
|
968 break; |
|
|
969 } |
|
|
970 } |
|
|
971 |
|
|
972 void |
|
4944
|
973 do_float_format_conversion (void *data, size_t sz, int len, |
|
|
974 oct_mach_info::float_format from_fmt, |
|
|
975 oct_mach_info::float_format to_fmt) |
|
|
976 { |
|
|
977 switch (sz) |
|
|
978 { |
|
|
979 case sizeof (float): |
|
|
980 do_float_format_conversion (data, len, from_fmt, to_fmt); |
|
|
981 break; |
|
|
982 |
|
|
983 case sizeof (double): |
|
|
984 do_double_format_conversion (data, len, from_fmt, to_fmt); |
|
|
985 break; |
|
|
986 |
|
|
987 default: |
|
|
988 (*current_liboctave_error_handler) |
|
|
989 ("impossible state reached in file `%s' at line %d", |
|
|
990 __FILE__, __LINE__); |
|
|
991 break; |
|
|
992 } |
|
|
993 } |
|
|
994 |
|
|
995 |
|
|
996 void |
|
3504
|
997 read_doubles (std::istream& is, double *data, save_type type, int len, |
|
4944
|
998 bool swap, oct_mach_info::float_format fmt) |
|
1960
|
999 { |
|
|
1000 switch (type) |
|
|
1001 { |
|
|
1002 case LS_U_CHAR: |
|
5828
|
1003 LS_DO_READ (uint8_t, swap, data, 1, len, is); |
|
1960
|
1004 break; |
|
|
1005 |
|
|
1006 case LS_U_SHORT: |
|
5828
|
1007 LS_DO_READ (uint16_t, swap, data, 2, len, is); |
|
1960
|
1008 break; |
|
|
1009 |
|
|
1010 case LS_U_INT: |
|
5828
|
1011 LS_DO_READ (uint32_t, swap, data, 4, len, is); |
|
1960
|
1012 break; |
|
|
1013 |
|
|
1014 case LS_CHAR: |
|
5828
|
1015 LS_DO_READ (int8_t, swap, data, 1, len, is); |
|
1960
|
1016 break; |
|
|
1017 |
|
|
1018 case LS_SHORT: |
|
5828
|
1019 LS_DO_READ (int16_t, swap, data, 2, len, is); |
|
1960
|
1020 break; |
|
|
1021 |
|
|
1022 case LS_INT: |
|
5828
|
1023 LS_DO_READ (int32_t, swap, data, 4, len, is); |
|
1960
|
1024 break; |
|
|
1025 |
|
|
1026 case LS_FLOAT: |
|
|
1027 { |
|
5760
|
1028 OCTAVE_LOCAL_BUFFER (float, ptr, len); |
|
|
1029 is.read (reinterpret_cast<char *> (ptr), 4 * len); |
|
|
1030 do_float_format_conversion (ptr, len, fmt); |
|
|
1031 for (int i = 0; i < len; i++) |
|
1960
|
1032 data[i] = ptr[i]; |
|
|
1033 } |
|
|
1034 break; |
|
|
1035 |
|
3359
|
1036 case LS_DOUBLE: // No conversion necessary. |
|
5760
|
1037 is.read (reinterpret_cast<char *> (data), 8 * len); |
|
1960
|
1038 do_double_format_conversion (data, len, fmt); |
|
|
1039 break; |
|
|
1040 |
|
|
1041 default: |
|
3504
|
1042 is.clear (std::ios::failbit|is.rdstate ()); |
|
1960
|
1043 break; |
|
|
1044 } |
|
|
1045 } |
|
|
1046 |
|
|
1047 void |
|
3504
|
1048 write_doubles (std::ostream& os, const double *data, save_type type, int len) |
|
1960
|
1049 { |
|
|
1050 switch (type) |
|
|
1051 { |
|
|
1052 case LS_U_CHAR: |
|
5828
|
1053 LS_DO_WRITE (uint8_t, data, 1, len, os); |
|
1960
|
1054 break; |
|
|
1055 |
|
|
1056 case LS_U_SHORT: |
|
5828
|
1057 LS_DO_WRITE (uint16_t, data, 2, len, os); |
|
1960
|
1058 break; |
|
|
1059 |
|
|
1060 case LS_U_INT: |
|
5828
|
1061 LS_DO_WRITE (uint32_t, data, 4, len, os); |
|
1960
|
1062 break; |
|
|
1063 |
|
|
1064 case LS_CHAR: |
|
5828
|
1065 LS_DO_WRITE (int8_t, data, 1, len, os); |
|
1960
|
1066 break; |
|
|
1067 |
|
|
1068 case LS_SHORT: |
|
5828
|
1069 LS_DO_WRITE (int16_t, data, 2, len, os); |
|
1960
|
1070 break; |
|
|
1071 |
|
|
1072 case LS_INT: |
|
5828
|
1073 LS_DO_WRITE (int32_t, data, 4, len, os); |
|
1960
|
1074 break; |
|
|
1075 |
|
|
1076 case LS_FLOAT: |
|
|
1077 LS_DO_WRITE (float, data, 4, len, os); |
|
|
1078 break; |
|
|
1079 |
|
3359
|
1080 case LS_DOUBLE: // No conversion necessary. |
|
1960
|
1081 { |
|
5760
|
1082 char tmp_type = static_cast<char> (type); |
|
1960
|
1083 os.write (&tmp_type, 1); |
|
5760
|
1084 os.write (reinterpret_cast <const char *> (data), 8 * len); |
|
1960
|
1085 } |
|
|
1086 break; |
|
|
1087 |
|
|
1088 default: |
|
|
1089 (*current_liboctave_error_handler) |
|
|
1090 ("unrecognized data format requested"); |
|
|
1091 break; |
|
|
1092 } |
|
|
1093 } |
|
|
1094 |
|
|
1095 /* |
|
|
1096 ;;; Local Variables: *** |
|
|
1097 ;;; mode: C++ *** |
|
|
1098 ;;; End: *** |
|
|
1099 */ |
