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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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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if !defined (octave_data_conv_h) |
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24 #define octave_data_conv_h 1 |
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25 |
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26 #include <climits> |
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27 |
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28 #include "mach-info.h" |
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29 |
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30 // Not all of the following are currently used. |
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31 |
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32 #if CHAR_BIT != 8 |
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33 #error "CHAR_BIT is not 8!" |
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34 #endif |
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35 |
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36 #if SIZEOF_SHORT == 2 |
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37 #define TWO_BYTE_INT short |
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38 #elif SIZEOF_INT == 2 |
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39 #define TWO_BYTE_INT int |
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40 #else |
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41 #error "No 2 byte integer type found!" |
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42 #endif |
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43 |
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44 #if SIZEOF_INT == 4 |
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45 #define FOUR_BYTE_INT int |
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46 #elif SIZEOF_LONG == 4 |
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47 #define FOUR_BYTE_INT long |
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48 #else |
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49 #error "No 4 byte integer type found!" |
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50 #endif |
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51 |
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52 #if SIZEOF_LONG == 8 |
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53 #define EIGHT_BYTE_INT long |
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54 #else |
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55 #if SIZEOF_LONG_LONG == 8 |
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56 // if `long long' is not implemented, then SIZEOF_LONG_LONG will be 0 |
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57 #define EIGHT_BYTE_INT long long |
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58 // if no 8 byte integer type is found, then EIGHT_BYTE_INT is not defined |
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59 #endif |
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60 #endif |
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61 |
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62 class |
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63 oct_data_conv |
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64 { |
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65 public: |
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66 |
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67 enum data_type |
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68 { |
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69 dt_int8 = 0, |
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70 dt_uint8 = 1, |
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71 dt_int16 = 2, |
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72 dt_uint16 = 3, |
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73 dt_int32 = 4, |
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74 dt_uint32 = 5, |
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75 dt_int64 = 6, |
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76 dt_uint64 = 7, |
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77 dt_single = 8, |
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78 dt_double = 9, |
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79 dt_char = 10, |
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80 dt_schar = 11, |
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81 dt_uchar = 12, |
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82 dt_logical = 13, |
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83 dt_short = 14, |
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84 dt_ushort = 15, |
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85 dt_int = 16, |
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86 dt_uint = 17, |
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87 dt_long = 18, |
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88 dt_ulong = 19, |
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89 dt_longlong = 20, |
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90 dt_ulonglong = 21, |
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91 dt_float = 22, |
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92 dt_unknown = 23 // Must be last, have largest value! |
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93 }; |
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94 |
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95 static data_type string_to_data_type (const std::string& s); |
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96 |
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97 static void string_to_data_type (const std::string& s, int& block_size, |
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98 data_type& input_type, |
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99 data_type& output_type); |
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100 |
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101 static void string_to_data_type (const std::string& s, int& block_size, |
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102 data_type& output_type); |
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103 |
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104 static std::string data_type_as_string (data_type dt); |
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105 }; |
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106 |
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107 // Add new entries to the end of this enum, otherwise Octave will not |
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108 // be able to read binary data files stored in Octave's binary data |
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109 // format that were created with previous versions of Octave. |
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110 |
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111 enum save_type |
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112 { |
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113 LS_U_CHAR = 0, |
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114 LS_U_SHORT = 1, |
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115 LS_U_INT = 2, |
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116 LS_CHAR = 3, |
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117 LS_SHORT = 4, |
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118 LS_INT = 5, |
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119 LS_FLOAT = 6, |
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120 LS_DOUBLE = 7, |
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121 LS_U_LONG = 8, |
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122 LS_LONG = 9 |
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123 }; |
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124 |
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125 extern void |
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126 do_double_format_conversion (void *data, int len, |
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127 oct_mach_info::float_format from_fmt, |
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128 oct_mach_info::float_format to_fmt |
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129 = oct_mach_info::native_float_format ()); |
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130 |
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131 extern void |
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132 do_float_format_conversion (void *data, int len, |
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133 oct_mach_info::float_format from_fmt, |
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134 oct_mach_info::float_format to_fmt |
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135 = oct_mach_info::native_float_format ()); |
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136 |
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137 extern void |
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138 do_float_format_conversion (void *data, size_t sz, int len, |
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139 oct_mach_info::float_format from_fmt, |
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140 oct_mach_info::float_format to_fmt |
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141 = oct_mach_info::native_float_format ()); |
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142 |
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143 extern void |
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144 read_doubles (std::istream& is, double *data, save_type type, int len, |
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145 bool swap, oct_mach_info::float_format fmt); |
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146 extern void |
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147 write_doubles (std::ostream& os, const double *data, save_type type, int len); |
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148 |
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149 #endif |
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150 |
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151 /* |
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152 ;;; Local Variables: *** |
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153 ;;; mode: C++ *** |
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154 ;;; End: *** |
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155 */ |
