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1 /* |
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2 |
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2847
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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, 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 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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2317
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27 #include <cctype> |
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28 |
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3503
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29 #include <iostream> |
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30 |
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31 #include "byte-swap.h" |
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32 #include "data-conv.h" |
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33 #include "lo-error.h" |
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34 |
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4944
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35 #if defined HAVE_LONG_LONG_INT |
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36 #define FIND_SIZED_INT_TYPE(VAL, BITS, TQ, Q) \ |
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37 do \ |
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38 { \ |
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39 int sz = BITS / CHAR_BIT; \ |
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40 if (sizeof (TQ char) == sz) \ |
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41 VAL = oct_data_conv::dt_ ## Q ## char; \ |
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42 else if (sizeof (TQ short) == sz) \ |
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43 VAL = oct_data_conv::dt_ ## Q ## short; \ |
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44 else if (sizeof (TQ int) == sz) \ |
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45 VAL = oct_data_conv::dt_ ## Q ## int; \ |
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46 else if (sizeof (TQ long) == sz) \ |
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47 VAL = oct_data_conv::dt_ ## Q ## long; \ |
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48 else if (sizeof (TQ long long) == sz) \ |
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49 VAL = oct_data_conv::dt_ ## Q ## longlong; \ |
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50 else \ |
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51 VAL = oct_data_conv::dt_unknown; \ |
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52 } \ |
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53 while (0) |
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54 #else |
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3359
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55 #define FIND_SIZED_INT_TYPE(VAL, BITS, TQ, Q) \ |
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3358
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56 do \ |
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57 { \ |
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58 int sz = BITS / CHAR_BIT; \ |
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59 if (sizeof (TQ char) == sz) \ |
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60 VAL = oct_data_conv::dt_ ## Q ## char; \ |
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61 else if (sizeof (TQ short) == sz) \ |
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62 VAL = oct_data_conv::dt_ ## Q ## short; \ |
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63 else if (sizeof (TQ int) == sz) \ |
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64 VAL = oct_data_conv::dt_ ## Q ## int; \ |
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65 else if (sizeof (TQ long) == sz) \ |
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66 VAL = oct_data_conv::dt_ ## Q ## long; \ |
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67 else \ |
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68 VAL = oct_data_conv::dt_unknown; \ |
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69 } \ |
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70 while (0) |
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4944
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71 #endif |
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3358
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72 |
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3359
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73 #define FIND_SIZED_FLOAT_TYPE(VAL, BITS) \ |
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3358
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74 do \ |
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75 { \ |
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76 int sz = BITS / CHAR_BIT; \ |
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77 if (sizeof (float) == sz) \ |
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78 VAL = oct_data_conv::dt_float; \ |
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79 else if (sizeof (double) == sz) \ |
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80 VAL = oct_data_conv::dt_double; \ |
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81 else \ |
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82 VAL = oct_data_conv::dt_unknown; \ |
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83 } \ |
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84 while (0) |
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85 |
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86 // I'm not sure it is worth the trouble, but let's use a lookup table |
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87 // for the types that are supposed to be a specific number of bits |
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88 // wide. Given the macros above, this should work as long as CHAR_BIT |
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89 // is a multiple of 8 and there are types with the right sizes. |
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90 // |
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91 // The sized data type lookup table has the following format: |
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92 // |
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93 // bits |
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94 // +----+----+----+----+ |
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95 // | 8 | 16 | 32 | 64 | |
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96 // +----+----+----+----+ |
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97 // signed integer | | | | | |
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98 // +----+----+----+----+ |
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99 // unsigned integer | | | | | |
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100 // +----+----+----+----+ |
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101 // floating point | | | | | |
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102 // +----+----+----+----+ |
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103 // |
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104 // So, the 0,3 element is supposed to contain the oct_data_conv enum |
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105 // value corresponding to the correct native data type for a signed |
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106 // 32-bit integer. |
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107 |
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108 static void |
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109 init_sized_type_lookup_table (oct_data_conv::data_type table[3][4]) |
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110 { |
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111 int bits = 8; |
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112 |
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113 for (int i = 0; i < 4; i++) |
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114 { |
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115 FIND_SIZED_INT_TYPE (table[0][i], bits, , ); |
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116 |
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117 FIND_SIZED_INT_TYPE (table[1][i], bits, unsigned, u); |
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118 |
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119 FIND_SIZED_FLOAT_TYPE (table[2][i], bits); |
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120 |
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121 bits *= 2; |
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122 } |
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123 } |
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124 |
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4944
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125 static std::string |
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126 strip_spaces (const std::string& str) |
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127 { |
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128 int n = str.length (); |
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129 |
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130 int k = 0; |
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131 |
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132 std::string s (n, ' '); |
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133 |
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134 for (int i = 0; i < n; i++) |
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135 if (! isspace (str[i])) |
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136 s[k++] = tolower (str[i]); |
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137 |
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138 s.resize (k); |
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139 |
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140 return s; |
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141 } |
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142 |
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143 #define GET_SIZED_INT_TYPE(T, U) \ |
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144 do \ |
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145 { \ |
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146 switch (sizeof (T)) \ |
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147 { \ |
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148 case 1: \ |
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149 retval = dt_ ## U ## int8; \ |
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150 break; \ |
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151 \ |
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152 case 2: \ |
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153 retval = dt_ ## U ## int16; \ |
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154 break; \ |
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155 \ |
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156 case 4: \ |
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157 retval = dt_ ## U ## int32; \ |
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158 break; \ |
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159 \ |
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160 case 8: \ |
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161 retval = dt_ ## U ## int64; \ |
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162 break; \ |
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163 \ |
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164 default: \ |
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165 retval = dt_unknown; \ |
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166 break; \ |
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167 } \ |
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168 } \ |
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169 while (0) |
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170 |
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2317
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171 oct_data_conv::data_type |
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3504
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172 oct_data_conv::string_to_data_type (const std::string& str) |
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173 { |
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174 data_type retval = dt_unknown; |
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175 |
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3358
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176 static bool initialized = false; |
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177 |
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178 static data_type sized_type_table[3][4]; |
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179 |
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3358
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180 if (! initialized) |
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181 { |
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182 init_sized_type_lookup_table (sized_type_table); |
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183 |
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184 initialized = true; |
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185 } |
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186 |
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187 std::string s = strip_spaces (str); |
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188 |
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189 if (s == "int8" || s == "integer*1") |
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190 retval = dt_int8; |
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191 else if (s == "uint8") |
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192 retval = dt_uint8; |
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193 else if (s == "int16" || s == "integer*2") |
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194 retval = dt_int16; |
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195 else if (s == "uint16") |
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196 retval = dt_uint16; |
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197 else if (s == "int32" || s == "integer*4") |
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198 retval = dt_int32; |
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199 else if (s == "uint32") |
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200 retval = dt_uint32; |
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201 else if (s == "int64" || s == "integer*8") |
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202 retval = dt_int64; |
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203 else if (s == "uint64") |
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204 retval = dt_uint64; |
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205 else if (s == "single" || s == "float32" || s == "real*4") |
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206 retval = dt_single; |
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207 else if (s == "double" || s == "float64" || s == "real*8") |
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208 retval = dt_double; |
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209 else if (s == "char" || s == "char*1") |
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210 retval = dt_char; |
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211 else if (s == "schar" || s == "signedchar") |
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212 retval = dt_schar; |
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213 else if (s == "uchar" || s == "unsignedchar") |
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214 retval = dt_uchar; |
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215 else if (s == "short") |
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216 GET_SIZED_INT_TYPE (short, ); |
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217 else if (s == "ushort" || s == "unsignedshort") |
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218 GET_SIZED_INT_TYPE (unsigned short, u); |
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219 else if (s == "int") |
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220 GET_SIZED_INT_TYPE (int, ); |
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221 else if (s == "uint" || s == "unsignedint") |
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222 GET_SIZED_INT_TYPE (unsigned int, u); |
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223 else if (s == "long") |
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224 GET_SIZED_INT_TYPE (long, ); |
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225 else if (s == "ulong" || s == "unsignedlong") |
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226 GET_SIZED_INT_TYPE (unsigned long, u); |
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227 else if (s == "longlong") |
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228 GET_SIZED_INT_TYPE (long long, ); |
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229 else if (s == "ulonglong" || s == "unsignedlonglong") |
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230 GET_SIZED_INT_TYPE (unsigned long long, u); |
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231 else if (s == "float") |
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232 { |
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233 if (sizeof (float) == sizeof (double)) |
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234 retval = dt_double; |
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235 else |
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236 retval = dt_single; |
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237 } |
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238 else if (s == "logical") |
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239 retval = dt_logical; |
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240 else |
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241 (*current_liboctave_error_handler) ("invalid data type specified"); |
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242 |
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243 if (retval == dt_unknown) |
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244 (*current_liboctave_error_handler) |
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245 ("unable to find matching native data type for %s", s.c_str ()); |
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246 |
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247 return retval; |
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248 } |
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249 |
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4944
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250 void |
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251 oct_data_conv::string_to_data_type |
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252 (const std::string& str, int& block_size, |
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253 oct_data_conv::data_type& input_type, |
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254 oct_data_conv::data_type& output_type) |
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255 { |
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256 block_size = 1; |
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257 input_type = dt_uchar; |
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258 output_type = dt_double; |
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259 |
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260 bool input_is_output = false; |
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261 |
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262 std::string s = strip_spaces (str); |
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263 |
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264 size_t pos = 0; |
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265 |
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266 if (s[0] == '*') |
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267 input_is_output = true; |
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268 else |
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269 { |
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270 size_t len = s.length (); |
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271 |
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272 while (pos < len && isdigit (s[pos])) |
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273 pos++; |
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274 |
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275 if (pos > 0) |
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276 { |
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277 if (s[pos] == '*') |
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278 { |
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279 block_size = atoi (s.c_str ()); |
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280 s = s.substr (pos+1); |
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281 } |
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282 else |
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283 { |
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284 (*current_liboctave_error_handler) |
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285 ("invalid repeat count in `%s'", str.c_str ()); |
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286 |
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287 return; |
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288 } |
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289 } |
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290 } |
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291 |
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292 pos = s.find ('='); |
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293 |
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294 if (pos != std::string::npos) |
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295 { |
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296 if (s[pos+1] == '>') |
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297 { |
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298 if (input_is_output) |
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299 { |
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300 input_is_output = false; |
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301 |
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302 (*current_liboctave_warning_handler) |
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303 ("warning: ignoring leading * in fread precision"); |
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304 } |
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305 |
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306 input_type = string_to_data_type (s.substr (0, pos)); |
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307 output_type = string_to_data_type (s.substr (pos+2)); |
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308 } |
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309 else |
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310 (*current_liboctave_error_handler) |
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311 ("fread: invalid precision specified"); |
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312 } |
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313 else |
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314 { |
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315 input_type = string_to_data_type (s); |
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316 |
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317 if (input_is_output) |
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318 output_type = input_type; |
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319 } |
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320 } |
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321 |
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322 void |
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323 oct_data_conv::string_to_data_type |
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324 (const std::string& str, int& block_size, |
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325 oct_data_conv::data_type& output_type) |
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326 { |
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327 block_size = 1; |
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328 output_type = dt_double; |
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329 |
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330 std::string s = strip_spaces (str); |
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331 |
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332 size_t pos = 0; |
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333 |
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334 size_t len = s.length (); |
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335 |
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336 while (pos < len && isdigit (s[pos])) |
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337 pos++; |
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338 |
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339 if (pos > 0) |
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340 { |
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341 if (s[pos] == '*') |
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342 { |
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343 block_size = atoi (s.c_str ()); |
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344 s = s.substr (pos+1); |
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345 } |
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346 else |
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347 { |
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348 (*current_liboctave_error_handler) |
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349 ("invalid repeat count in `%s'", str.c_str ()); |
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350 |
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351 return; |
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352 } |
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353 } |
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354 |
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355 output_type = string_to_data_type (s); |
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356 } |
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357 |
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358 std::string |
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359 oct_data_conv::data_type_as_string (oct_data_conv::data_type dt) |
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360 { |
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361 std::string retval; |
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362 |
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363 switch (dt) |
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364 { |
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365 case oct_data_conv::dt_int8: |
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366 retval = "int8"; |
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367 break; |
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368 |
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369 case oct_data_conv::dt_uint8: |
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370 retval = "uint8"; |
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371 break; |
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372 |
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373 case oct_data_conv::dt_int16: |
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374 retval = "int16"; |
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375 break; |
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376 |
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377 case oct_data_conv::dt_uint16: |
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378 retval = "uint16"; |
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379 break; |
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380 |
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381 case oct_data_conv::dt_int32: |
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382 retval = "int32"; |
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383 break; |
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384 |
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385 case oct_data_conv::dt_uint32: |
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386 retval = "uint32"; |
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387 break; |
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388 |
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389 case oct_data_conv::dt_int64: |
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390 retval = "int64"; |
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391 break; |
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392 |
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393 case oct_data_conv::dt_uint64: |
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394 retval = "uint64"; |
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395 break; |
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396 |
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397 case oct_data_conv::dt_single: |
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398 retval = "single"; |
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399 break; |
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400 |
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401 case oct_data_conv::dt_double: |
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402 retval = "double"; |
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403 break; |
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404 |
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405 case oct_data_conv::dt_char: |
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406 retval = "char"; |
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407 break; |
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408 |
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409 case oct_data_conv::dt_schar: |
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410 retval = "signed char"; |
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411 break; |
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412 |
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413 case oct_data_conv::dt_uchar: |
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414 retval = "usigned char"; |
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415 break; |
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416 |
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417 case oct_data_conv::dt_short: |
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418 retval = "short"; |
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419 break; |
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420 |
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421 case oct_data_conv::dt_ushort: |
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422 retval = "unsigned short"; |
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423 break; |
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424 |
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425 case oct_data_conv::dt_int: |
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426 retval = "int"; |
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427 break; |
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428 |
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429 case oct_data_conv::dt_uint: |
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430 retval = "usigned int"; |
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431 break; |
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432 |
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433 case oct_data_conv::dt_long: |
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434 retval = "long"; |
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435 break; |
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436 |
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437 case oct_data_conv::dt_ulong: |
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438 retval = "usigned long"; |
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439 break; |
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440 |
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441 case oct_data_conv::dt_longlong: |
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442 retval = "long long"; |
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443 break; |
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444 |
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445 case oct_data_conv::dt_ulonglong: |
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446 retval = "unsigned long long"; |
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447 break; |
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448 |
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449 case oct_data_conv::dt_float: |
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450 retval = "float"; |
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451 break; |
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452 |
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4970
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453 case oct_data_conv::dt_logical: |
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454 retval = "logical"; |
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455 break; |
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456 |
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4944
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457 case oct_data_conv::dt_unknown: |
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458 default: |
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459 retval = "unknown"; |
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460 break; |
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461 } |
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462 |
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463 return retval; |
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464 } |
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1960
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465 |
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3359
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466 #define LS_DO_READ(TYPE, swap, data, size, len, stream) \ |
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1960
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467 do \ |
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468 { \ |
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3867
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469 if (len > 0) \ |
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470 { \ |
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471 volatile TYPE *ptr = X_CAST (volatile TYPE *, data); \ |
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472 stream.read (X_CAST (char *, ptr), size * len); \ |
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473 if (swap) \ |
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4944
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474 swap_bytes< size > (ptr, len); \ |
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3867
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475 TYPE tmp = ptr[0]; \ |
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476 for (int i = len - 1; i > 0; i--) \ |
|
|
477 data[i] = ptr[i]; \ |
|
|
478 data[0] = tmp; \ |
|
|
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 { \ |
|
|
491 char tmp_type = static_cast<char> (type); \ |
|
|
492 stream.write (&tmp_type, 1); \ |
|
|
493 TYPE *ptr = new TYPE [len]; \ |
|
|
494 for (int i = 0; i < len; i++) \ |
|
|
495 ptr[i] = X_CAST (TYPE, data[i]); \ |
|
|
496 stream.write (X_CAST (char *, ptr), size * len); \ |
|
|
497 delete [] ptr ; \ |
|
|
498 } \ |
|
1960
|
499 } \ |
|
|
500 while (0) |
|
|
501 |
|
|
502 // Loading variables from files. |
|
|
503 |
|
|
504 static void |
|
|
505 gripe_unrecognized_float_fmt (void) |
|
|
506 { |
|
|
507 (*current_liboctave_error_handler) |
|
|
508 ("unrecognized floating point format requested"); |
|
|
509 } |
|
|
510 |
|
|
511 static void |
|
|
512 gripe_data_conversion (const char *from, const char *to) |
|
|
513 { |
|
|
514 (*current_liboctave_error_handler) |
|
|
515 ("unable to convert from %s to %s format", from, to); |
|
|
516 } |
|
|
517 |
|
|
518 // But first, some data conversion routines. |
|
|
519 |
|
|
520 // Currently, we only handle conversions for the IEEE types. To fix |
|
|
521 // that, make more of the following routines work. |
|
|
522 |
|
|
523 // XXX FIXME XXX -- assumes sizeof (Complex) == 8 |
|
|
524 // XXX FIXME XXX -- assumes sizeof (double) == 8 |
|
|
525 // XXX FIXME XXX -- assumes sizeof (float) == 4 |
|
|
526 |
|
|
527 static void |
|
4944
|
528 IEEE_big_double_to_IEEE_little_double (void *d, int len) |
|
1960
|
529 { |
|
4944
|
530 swap_bytes<8> (d, len); |
|
1960
|
531 } |
|
|
532 |
|
|
533 static void |
|
4944
|
534 VAX_D_double_to_IEEE_little_double (void * /* d */, int /* len */) |
|
1960
|
535 { |
|
|
536 gripe_data_conversion ("VAX D float", "IEEE little endian format"); |
|
|
537 } |
|
|
538 |
|
|
539 static void |
|
4944
|
540 VAX_G_double_to_IEEE_little_double (void * /* d */, int /* len */) |
|
1960
|
541 { |
|
|
542 gripe_data_conversion ("VAX G float", "IEEE little endian format"); |
|
|
543 } |
|
|
544 |
|
|
545 static void |
|
4944
|
546 Cray_to_IEEE_little_double (void * /* d */, int /* len */) |
|
1960
|
547 { |
|
|
548 gripe_data_conversion ("Cray", "IEEE little endian format"); |
|
|
549 } |
|
|
550 |
|
|
551 static void |
|
4944
|
552 IEEE_big_float_to_IEEE_little_float (void *d, int len) |
|
1960
|
553 { |
|
4944
|
554 swap_bytes<4> (d, len); |
|
1960
|
555 } |
|
|
556 |
|
|
557 static void |
|
4944
|
558 VAX_D_float_to_IEEE_little_float (void * /* d */, int /* len */) |
|
1960
|
559 { |
|
|
560 gripe_data_conversion ("VAX D float", "IEEE little endian format"); |
|
|
561 } |
|
|
562 |
|
|
563 static void |
|
4944
|
564 VAX_G_float_to_IEEE_little_float (void * /* d */, int /* len */) |
|
1960
|
565 { |
|
|
566 gripe_data_conversion ("VAX G float", "IEEE little endian format"); |
|
|
567 } |
|
|
568 |
|
|
569 static void |
|
4944
|
570 Cray_to_IEEE_little_float (void * /* d */, int /* len */) |
|
1960
|
571 { |
|
|
572 gripe_data_conversion ("Cray", "IEEE little endian format"); |
|
|
573 } |
|
|
574 |
|
|
575 static void |
|
4944
|
576 IEEE_little_double_to_IEEE_big_double (void *d, int len) |
|
1960
|
577 { |
|
4944
|
578 swap_bytes<8> (d, len); |
|
1960
|
579 } |
|
|
580 |
|
|
581 static void |
|
4944
|
582 VAX_D_double_to_IEEE_big_double (void * /* d */, int /* len */) |
|
1960
|
583 { |
|
|
584 gripe_data_conversion ("VAX D float", "IEEE big endian format"); |
|
|
585 } |
|
|
586 |
|
|
587 static void |
|
4944
|
588 VAX_G_double_to_IEEE_big_double (void * /* d */, int /* len */) |
|
1960
|
589 { |
|
|
590 gripe_data_conversion ("VAX G float", "IEEE big endian format"); |
|
|
591 } |
|
|
592 |
|
|
593 static void |
|
4944
|
594 Cray_to_IEEE_big_double (void * /* d */, int /* len */) |
|
1960
|
595 { |
|
|
596 gripe_data_conversion ("Cray", "IEEE big endian format"); |
|
|
597 } |
|
|
598 |
|
|
599 static void |
|
4944
|
600 IEEE_little_float_to_IEEE_big_float (void *d, int len) |
|
1960
|
601 { |
|
4944
|
602 swap_bytes<4> (d, len); |
|
1960
|
603 } |
|
|
604 |
|
|
605 static void |
|
4944
|
606 VAX_D_float_to_IEEE_big_float (void * /* d */, int /* len */) |
|
1960
|
607 { |
|
|
608 gripe_data_conversion ("VAX D float", "IEEE big endian format"); |
|
|
609 } |
|
|
610 |
|
|
611 static void |
|
4944
|
612 VAX_G_float_to_IEEE_big_float (void * /* d */, int /* len */) |
|
1960
|
613 { |
|
|
614 gripe_data_conversion ("VAX G float", "IEEE big endian format"); |
|
|
615 } |
|
|
616 |
|
|
617 static void |
|
4944
|
618 Cray_to_IEEE_big_float (void * /* d */, int /* len */) |
|
1960
|
619 { |
|
|
620 gripe_data_conversion ("Cray", "IEEE big endian format"); |
|
|
621 } |
|
|
622 |
|
|
623 static void |
|
4944
|
624 IEEE_little_double_to_VAX_D_double (void * /* d */, int /* len */) |
|
1960
|
625 { |
|
|
626 gripe_data_conversion ("IEEE little endian", "VAX D"); |
|
|
627 } |
|
|
628 |
|
|
629 static void |
|
4944
|
630 IEEE_big_double_to_VAX_D_double (void * /* d */, int /* len */) |
|
1960
|
631 { |
|
|
632 gripe_data_conversion ("IEEE big endian", "VAX D"); |
|
|
633 } |
|
|
634 |
|
|
635 static void |
|
4944
|
636 VAX_G_double_to_VAX_D_double (void * /* d */, int /* len */) |
|
1960
|
637 { |
|
|
638 gripe_data_conversion ("VAX G float", "VAX D"); |
|
|
639 } |
|
|
640 |
|
|
641 static void |
|
4944
|
642 Cray_to_VAX_D_double (void * /* d */, int /* len */) |
|
1960
|
643 { |
|
|
644 gripe_data_conversion ("Cray", "VAX D"); |
|
|
645 } |
|
|
646 |
|
|
647 static void |
|
4944
|
648 IEEE_little_float_to_VAX_D_float (void * /* d */, int /* len */) |
|
1960
|
649 { |
|
|
650 gripe_data_conversion ("IEEE little endian", "VAX D"); |
|
|
651 } |
|
|
652 |
|
|
653 static void |
|
4944
|
654 IEEE_big_float_to_VAX_D_float (void * /* d */, int /* len */) |
|
1960
|
655 { |
|
|
656 gripe_data_conversion ("IEEE big endian", "VAX D"); |
|
|
657 } |
|
|
658 |
|
|
659 static void |
|
4944
|
660 VAX_G_float_to_VAX_D_float (void * /* d */, int /* len */) |
|
1960
|
661 { |
|
|
662 gripe_data_conversion ("VAX G float", "VAX D"); |
|
|
663 } |
|
|
664 |
|
|
665 static void |
|
4944
|
666 Cray_to_VAX_D_float (void * /* d */, int /* len */) |
|
1960
|
667 { |
|
|
668 gripe_data_conversion ("Cray", "VAX D"); |
|
|
669 } |
|
|
670 |
|
|
671 static void |
|
4944
|
672 IEEE_little_double_to_VAX_G_double (void * /* d */, int /* len */) |
|
1960
|
673 { |
|
|
674 gripe_data_conversion ("IEEE little endian", "VAX G"); |
|
|
675 } |
|
|
676 |
|
|
677 static void |
|
4944
|
678 IEEE_big_double_to_VAX_G_double (void * /* d */, int /* len */) |
|
1960
|
679 { |
|
|
680 gripe_data_conversion ("IEEE big endian", "VAX G"); |
|
|
681 } |
|
|
682 |
|
|
683 static void |
|
4944
|
684 VAX_D_double_to_VAX_G_double (void * /* d */, int /* len */) |
|
1960
|
685 { |
|
|
686 gripe_data_conversion ("VAX D float", "VAX G"); |
|
|
687 } |
|
|
688 |
|
|
689 static void |
|
4944
|
690 Cray_to_VAX_G_double (void * /* d */, int /* len */) |
|
1960
|
691 { |
|
|
692 gripe_data_conversion ("VAX G float", "VAX G"); |
|
|
693 } |
|
|
694 |
|
|
695 static void |
|
4944
|
696 IEEE_little_float_to_VAX_G_float (void * /* d */, int /* len */) |
|
1960
|
697 { |
|
|
698 gripe_data_conversion ("IEEE little endian", "VAX G"); |
|
|
699 } |
|
|
700 |
|
|
701 static void |
|
4944
|
702 IEEE_big_float_to_VAX_G_float (void * /* d */, int /* len */) |
|
1960
|
703 { |
|
|
704 gripe_data_conversion ("IEEE big endian", "VAX G"); |
|
|
705 } |
|
|
706 |
|
|
707 static void |
|
4944
|
708 VAX_D_float_to_VAX_G_float (void * /* d */, int /* len */) |
|
1960
|
709 { |
|
|
710 gripe_data_conversion ("VAX D float", "VAX G"); |
|
|
711 } |
|
|
712 |
|
|
713 static void |
|
4944
|
714 Cray_to_VAX_G_float (void * /* d */, int /* len */) |
|
1960
|
715 { |
|
|
716 gripe_data_conversion ("VAX G float", "VAX G"); |
|
|
717 } |
|
|
718 |
|
|
719 void |
|
4944
|
720 do_double_format_conversion (void *data, int len, |
|
|
721 oct_mach_info::float_format from_fmt, |
|
|
722 oct_mach_info::float_format to_fmt) |
|
1960
|
723 { |
|
4944
|
724 switch (to_fmt) |
|
1960
|
725 { |
|
4574
|
726 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
4944
|
727 switch (from_fmt) |
|
1960
|
728 { |
|
4574
|
729 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
730 break; |
|
|
731 |
|
4574
|
732 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
733 IEEE_big_double_to_IEEE_little_double (data, len); |
|
|
734 break; |
|
|
735 |
|
4574
|
736 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
737 VAX_D_double_to_IEEE_little_double (data, len); |
|
|
738 break; |
|
|
739 |
|
4574
|
740 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
741 VAX_G_double_to_IEEE_little_double (data, len); |
|
|
742 break; |
|
|
743 |
|
4574
|
744 case oct_mach_info::flt_fmt_cray: |
|
1960
|
745 Cray_to_IEEE_little_double (data, len); |
|
|
746 break; |
|
|
747 |
|
|
748 default: |
|
|
749 gripe_unrecognized_float_fmt (); |
|
|
750 break; |
|
|
751 } |
|
|
752 break; |
|
|
753 |
|
4574
|
754 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
4944
|
755 switch (from_fmt) |
|
1960
|
756 { |
|
4574
|
757 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
758 IEEE_little_double_to_IEEE_big_double (data, len); |
|
|
759 break; |
|
|
760 |
|
4574
|
761 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
762 break; |
|
|
763 |
|
4574
|
764 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
765 VAX_D_double_to_IEEE_big_double (data, len); |
|
|
766 break; |
|
|
767 |
|
4574
|
768 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
769 VAX_G_double_to_IEEE_big_double (data, len); |
|
|
770 break; |
|
|
771 |
|
4574
|
772 case oct_mach_info::flt_fmt_cray: |
|
1960
|
773 Cray_to_IEEE_big_double (data, len); |
|
|
774 break; |
|
|
775 |
|
|
776 default: |
|
|
777 gripe_unrecognized_float_fmt (); |
|
|
778 break; |
|
|
779 } |
|
|
780 break; |
|
|
781 |
|
4574
|
782 case oct_mach_info::flt_fmt_vax_d: |
|
4944
|
783 switch (from_fmt) |
|
1960
|
784 { |
|
4574
|
785 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
786 IEEE_little_double_to_VAX_D_double (data, len); |
|
|
787 break; |
|
|
788 |
|
4574
|
789 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
790 IEEE_big_double_to_VAX_D_double (data, len); |
|
|
791 break; |
|
|
792 |
|
4574
|
793 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
794 break; |
|
|
795 |
|
4574
|
796 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
797 VAX_G_double_to_VAX_D_double (data, len); |
|
|
798 break; |
|
|
799 |
|
4574
|
800 case oct_mach_info::flt_fmt_cray: |
|
1960
|
801 Cray_to_VAX_D_double (data, len); |
|
|
802 break; |
|
|
803 |
|
|
804 default: |
|
|
805 gripe_unrecognized_float_fmt (); |
|
|
806 break; |
|
|
807 } |
|
|
808 break; |
|
|
809 |
|
4574
|
810 case oct_mach_info::flt_fmt_vax_g: |
|
4944
|
811 switch (from_fmt) |
|
1960
|
812 { |
|
4574
|
813 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
814 IEEE_little_double_to_VAX_G_double (data, len); |
|
|
815 break; |
|
|
816 |
|
4574
|
817 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
818 IEEE_big_double_to_VAX_G_double (data, len); |
|
|
819 break; |
|
|
820 |
|
4574
|
821 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
822 VAX_D_double_to_VAX_G_double (data, len); |
|
|
823 break; |
|
|
824 |
|
4574
|
825 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
826 break; |
|
|
827 |
|
4574
|
828 case oct_mach_info::flt_fmt_cray: |
|
1960
|
829 Cray_to_VAX_G_double (data, len); |
|
|
830 break; |
|
|
831 |
|
|
832 default: |
|
|
833 gripe_unrecognized_float_fmt (); |
|
|
834 break; |
|
|
835 } |
|
|
836 break; |
|
|
837 |
|
|
838 default: |
|
|
839 (*current_liboctave_error_handler) |
|
|
840 ("impossible state reached in file `%s' at line %d", |
|
|
841 __FILE__, __LINE__); |
|
|
842 break; |
|
|
843 } |
|
|
844 } |
|
|
845 |
|
|
846 void |
|
4944
|
847 do_float_format_conversion (void *data, int len, |
|
|
848 oct_mach_info::float_format from_fmt, |
|
|
849 oct_mach_info::float_format to_fmt) |
|
1960
|
850 { |
|
4944
|
851 switch (to_fmt) |
|
1960
|
852 { |
|
4574
|
853 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
4944
|
854 switch (from_fmt) |
|
1960
|
855 { |
|
4574
|
856 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
857 break; |
|
|
858 |
|
4574
|
859 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
860 IEEE_big_float_to_IEEE_little_float (data, len); |
|
|
861 break; |
|
|
862 |
|
4574
|
863 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
864 VAX_D_float_to_IEEE_little_float (data, len); |
|
|
865 break; |
|
|
866 |
|
4574
|
867 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
868 VAX_G_float_to_IEEE_little_float (data, len); |
|
|
869 break; |
|
|
870 |
|
4574
|
871 case oct_mach_info::flt_fmt_cray: |
|
1960
|
872 Cray_to_IEEE_little_float (data, len); |
|
|
873 break; |
|
|
874 |
|
|
875 default: |
|
|
876 gripe_unrecognized_float_fmt (); |
|
|
877 break; |
|
|
878 } |
|
|
879 break; |
|
|
880 |
|
4574
|
881 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
4944
|
882 switch (from_fmt) |
|
1960
|
883 { |
|
4574
|
884 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
885 IEEE_little_float_to_IEEE_big_float (data, len); |
|
|
886 break; |
|
|
887 |
|
4574
|
888 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
889 break; |
|
|
890 |
|
4574
|
891 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
892 VAX_D_float_to_IEEE_big_float (data, len); |
|
|
893 break; |
|
|
894 |
|
4574
|
895 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
896 VAX_G_float_to_IEEE_big_float (data, len); |
|
|
897 break; |
|
|
898 |
|
4574
|
899 case oct_mach_info::flt_fmt_cray: |
|
1960
|
900 Cray_to_IEEE_big_float (data, len); |
|
|
901 break; |
|
|
902 |
|
|
903 default: |
|
|
904 gripe_unrecognized_float_fmt (); |
|
|
905 break; |
|
|
906 } |
|
|
907 break; |
|
|
908 |
|
4574
|
909 case oct_mach_info::flt_fmt_vax_d: |
|
4944
|
910 switch (from_fmt) |
|
1960
|
911 { |
|
4574
|
912 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
913 IEEE_little_float_to_VAX_D_float (data, len); |
|
|
914 break; |
|
|
915 |
|
4574
|
916 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
917 IEEE_big_float_to_VAX_D_float (data, len); |
|
|
918 break; |
|
|
919 |
|
4574
|
920 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
921 break; |
|
|
922 |
|
4574
|
923 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
924 VAX_G_float_to_VAX_D_float (data, len); |
|
|
925 break; |
|
|
926 |
|
4574
|
927 case oct_mach_info::flt_fmt_cray: |
|
1960
|
928 Cray_to_VAX_D_float (data, len); |
|
|
929 break; |
|
|
930 |
|
|
931 default: |
|
|
932 gripe_unrecognized_float_fmt (); |
|
|
933 break; |
|
|
934 } |
|
|
935 break; |
|
|
936 |
|
4574
|
937 case oct_mach_info::flt_fmt_vax_g: |
|
4944
|
938 switch (from_fmt) |
|
1960
|
939 { |
|
4574
|
940 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
941 IEEE_little_float_to_VAX_G_float (data, len); |
|
|
942 break; |
|
|
943 |
|
4574
|
944 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
945 IEEE_big_float_to_VAX_G_float (data, len); |
|
|
946 break; |
|
|
947 |
|
4574
|
948 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
949 VAX_D_float_to_VAX_G_float (data, len); |
|
|
950 break; |
|
|
951 |
|
4574
|
952 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
953 break; |
|
|
954 |
|
4574
|
955 case oct_mach_info::flt_fmt_cray: |
|
1960
|
956 Cray_to_VAX_G_float (data, len); |
|
|
957 break; |
|
|
958 |
|
|
959 default: |
|
|
960 gripe_unrecognized_float_fmt (); |
|
|
961 break; |
|
|
962 } |
|
|
963 break; |
|
|
964 |
|
|
965 default: |
|
|
966 (*current_liboctave_error_handler) |
|
|
967 ("impossible state reached in file `%s' at line %d", |
|
|
968 __FILE__, __LINE__); |
|
|
969 break; |
|
|
970 } |
|
|
971 } |
|
|
972 |
|
|
973 void |
|
4944
|
974 do_float_format_conversion (void *data, size_t sz, int len, |
|
|
975 oct_mach_info::float_format from_fmt, |
|
|
976 oct_mach_info::float_format to_fmt) |
|
|
977 { |
|
|
978 switch (sz) |
|
|
979 { |
|
|
980 case sizeof (float): |
|
|
981 do_float_format_conversion (data, len, from_fmt, to_fmt); |
|
|
982 break; |
|
|
983 |
|
|
984 case sizeof (double): |
|
|
985 do_double_format_conversion (data, len, from_fmt, to_fmt); |
|
|
986 break; |
|
|
987 |
|
|
988 default: |
|
|
989 (*current_liboctave_error_handler) |
|
|
990 ("impossible state reached in file `%s' at line %d", |
|
|
991 __FILE__, __LINE__); |
|
|
992 break; |
|
|
993 } |
|
|
994 } |
|
|
995 |
|
|
996 |
|
|
997 void |
|
3504
|
998 read_doubles (std::istream& is, double *data, save_type type, int len, |
|
4944
|
999 bool swap, oct_mach_info::float_format fmt) |
|
1960
|
1000 { |
|
|
1001 switch (type) |
|
|
1002 { |
|
|
1003 case LS_U_CHAR: |
|
|
1004 LS_DO_READ (unsigned char, swap, data, 1, len, is); |
|
|
1005 break; |
|
|
1006 |
|
|
1007 case LS_U_SHORT: |
|
|
1008 LS_DO_READ (unsigned TWO_BYTE_INT, swap, data, 2, len, is); |
|
|
1009 break; |
|
|
1010 |
|
|
1011 case LS_U_INT: |
|
|
1012 LS_DO_READ (unsigned FOUR_BYTE_INT, swap, data, 4, len, is); |
|
|
1013 break; |
|
|
1014 |
|
|
1015 case LS_CHAR: |
|
|
1016 LS_DO_READ (signed char, swap, data, 1, len, is); |
|
|
1017 break; |
|
|
1018 |
|
|
1019 case LS_SHORT: |
|
|
1020 LS_DO_READ (TWO_BYTE_INT, swap, data, 2, len, is); |
|
|
1021 break; |
|
|
1022 |
|
|
1023 case LS_INT: |
|
|
1024 LS_DO_READ (FOUR_BYTE_INT, swap, data, 4, len, is); |
|
|
1025 break; |
|
|
1026 |
|
|
1027 case LS_FLOAT: |
|
|
1028 { |
|
3145
|
1029 volatile float *ptr = X_CAST (float *, data); |
|
3518
|
1030 is.read (X_CAST (char *, data), 4 * len); |
|
4944
|
1031 do_float_format_conversion (data, len, fmt); |
|
1960
|
1032 float tmp = ptr[0]; |
|
|
1033 for (int i = len - 1; i > 0; i--) |
|
|
1034 data[i] = ptr[i]; |
|
|
1035 data[0] = tmp; |
|
|
1036 } |
|
|
1037 break; |
|
|
1038 |
|
3359
|
1039 case LS_DOUBLE: // No conversion necessary. |
|
3518
|
1040 is.read (X_CAST (char *, data), 8 * len); |
|
1960
|
1041 do_double_format_conversion (data, len, fmt); |
|
|
1042 break; |
|
|
1043 |
|
|
1044 default: |
|
3504
|
1045 is.clear (std::ios::failbit|is.rdstate ()); |
|
1960
|
1046 break; |
|
|
1047 } |
|
|
1048 } |
|
|
1049 |
|
|
1050 void |
|
3504
|
1051 write_doubles (std::ostream& os, const double *data, save_type type, int len) |
|
1960
|
1052 { |
|
|
1053 switch (type) |
|
|
1054 { |
|
|
1055 case LS_U_CHAR: |
|
|
1056 LS_DO_WRITE (unsigned char, data, 1, len, os); |
|
|
1057 break; |
|
|
1058 |
|
|
1059 case LS_U_SHORT: |
|
|
1060 LS_DO_WRITE (unsigned TWO_BYTE_INT, data, 2, len, os); |
|
|
1061 break; |
|
|
1062 |
|
|
1063 case LS_U_INT: |
|
|
1064 LS_DO_WRITE (unsigned FOUR_BYTE_INT, data, 4, len, os); |
|
|
1065 break; |
|
|
1066 |
|
|
1067 case LS_CHAR: |
|
|
1068 LS_DO_WRITE (signed char, data, 1, len, os); |
|
|
1069 break; |
|
|
1070 |
|
|
1071 case LS_SHORT: |
|
|
1072 LS_DO_WRITE (TWO_BYTE_INT, data, 2, len, os); |
|
|
1073 break; |
|
|
1074 |
|
|
1075 case LS_INT: |
|
|
1076 LS_DO_WRITE (FOUR_BYTE_INT, data, 4, len, os); |
|
|
1077 break; |
|
|
1078 |
|
|
1079 case LS_FLOAT: |
|
|
1080 LS_DO_WRITE (float, data, 4, len, os); |
|
|
1081 break; |
|
|
1082 |
|
3359
|
1083 case LS_DOUBLE: // No conversion necessary. |
|
1960
|
1084 { |
|
3145
|
1085 char tmp_type = X_CAST (char, type); |
|
1960
|
1086 os.write (&tmp_type, 1); |
|
3518
|
1087 os.write (X_CAST (char *, data), 8 * len); |
|
1960
|
1088 } |
|
|
1089 break; |
|
|
1090 |
|
|
1091 default: |
|
|
1092 (*current_liboctave_error_handler) |
|
|
1093 ("unrecognized data format requested"); |
|
|
1094 break; |
|
|
1095 } |
|
|
1096 } |
|
|
1097 |
|
|
1098 /* |
|
|
1099 ;;; Local Variables: *** |
|
|
1100 ;;; mode: C++ *** |
|
|
1101 ;;; End: *** |
|
|
1102 */ |
