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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 3 of the License, or (at your |
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10 option) any 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, see |
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19 <http://www.gnu.org/licenses/>. |
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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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27 #include <iostream> |
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28 |
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29 #include "mx-base.h" |
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30 |
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31 #include "gripes.h" |
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32 #include "oct-obj.h" |
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33 #include "ops.h" |
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34 #include "ov-bool.h" |
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35 #include "ov-bool-mat.h" |
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36 #include "ov-base.h" |
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37 #include "ov-base-scalar.h" |
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38 #include "ov-base-scalar.cc" |
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39 #include "ov-re-mat.h" |
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40 #include "ov-scalar.h" |
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41 #include "pr-output.h" |
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42 |
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43 #include "ls-oct-ascii.h" |
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44 #include "ls-hdf5.h" |
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45 |
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46 template class octave_base_scalar<bool>; |
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47 |
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48 DEFINE_OCTAVE_ALLOCATOR (octave_bool); |
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49 |
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50 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_bool, "bool", "logical"); |
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51 |
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52 static octave_base_value * |
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53 default_numeric_conversion_function (const octave_base_value& a) |
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54 { |
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55 CAST_CONV_ARG (const octave_bool&); |
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56 |
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57 return new octave_scalar (v.bool_value ()); |
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58 } |
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59 |
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60 octave_base_value::type_conv_fcn |
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61 octave_bool::numeric_conversion_function (void) const |
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62 { |
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63 return default_numeric_conversion_function; |
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64 } |
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65 |
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66 static inline bool |
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67 valid_scalar_indices (const octave_value_list& args) |
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68 { |
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69 int nargin = args.length (); |
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70 |
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71 for (int i = 0; i < nargin; i++) |
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72 if (! args(i).valid_as_scalar_index ()) |
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73 return false; |
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74 |
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75 return true; |
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76 } |
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77 |
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78 octave_value |
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79 octave_bool::do_index_op (const octave_value_list& idx, bool resize_ok) |
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80 { |
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81 octave_value retval; |
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82 |
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83 if (valid_scalar_indices (idx)) |
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84 retval = scalar; |
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85 else |
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86 { |
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87 // FIXME -- this doesn't solve the problem of |
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88 // |
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89 // a = 1; a([1,1], [1,1], [1,1]) |
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90 // |
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91 // and similar constructions. Hmm... |
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92 |
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93 // FIXME -- using this constructor avoids narrowing the |
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94 // 1x1 matrix back to a scalar value. Need a better solution |
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95 // to this problem. |
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96 |
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97 octave_value tmp (new octave_bool_matrix (bool_matrix_value ())); |
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98 |
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99 retval = tmp.do_index_op (idx, resize_ok); |
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100 } |
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101 |
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102 return retval; |
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103 } |
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104 |
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105 octave_value |
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106 octave_bool::resize (const dim_vector& dv, bool fill) const |
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107 { |
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108 if (fill) |
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109 { |
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110 boolNDArray retval (dv, false); |
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111 if (dv.numel()) |
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112 retval(0) = scalar; |
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113 return retval; |
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114 } |
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115 else |
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116 { |
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117 boolNDArray retval (dv); |
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118 if (dv.numel()) |
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119 retval(0) = scalar; |
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120 return retval; |
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121 } |
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122 } |
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123 |
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124 octave_value |
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125 octave_bool::convert_to_str_internal (bool, bool, char type) const |
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126 { |
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127 char s[2]; |
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128 s[0] = static_cast<char> (scalar); |
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129 s[1] = '\0'; |
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130 |
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131 return octave_value (s, type); |
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132 } |
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133 |
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134 bool |
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135 octave_bool::save_ascii (std::ostream& os) |
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136 { |
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137 double d = double_value (); |
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138 |
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139 octave_write_double (os, d); |
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140 os << "\n"; |
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141 |
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142 return true; |
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143 } |
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144 |
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145 bool |
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146 octave_bool::load_ascii (std::istream& is) |
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147 { |
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148 scalar = (octave_read_double (is) != 0.); |
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149 |
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150 if (!is) |
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151 { |
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152 error ("load: failed to load scalar constant"); |
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153 return false; |
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154 } |
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155 |
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156 return true; |
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157 } |
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158 |
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159 bool |
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160 octave_bool::save_binary (std::ostream& os, bool& /* save_as_floats */) |
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161 { |
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162 char tmp = (scalar ? 1 : 0); |
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163 os.write (reinterpret_cast<char *> (&tmp), 1); |
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164 |
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165 return true; |
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166 } |
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167 |
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168 bool |
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169 octave_bool::load_binary (std::istream& is, bool /* swap */, |
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170 oct_mach_info::float_format /* fmt */) |
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171 { |
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172 char tmp; |
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173 if (! is.read (reinterpret_cast<char *> (&tmp), 1)) |
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174 return false; |
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175 scalar = (tmp ? 1 : 0); |
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176 return true; |
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177 } |
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178 |
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179 #if defined (HAVE_HDF5) |
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180 |
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181 bool |
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182 octave_bool::save_hdf5 (hid_t loc_id, const char *name, |
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183 bool /* save_as_floats */) |
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184 { |
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185 hsize_t dimens[3]; |
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186 hid_t space_hid = -1, data_hid = -1; |
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187 bool retval = true; |
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188 |
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189 space_hid = H5Screate_simple (0, dimens, 0); |
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190 if (space_hid < 0) return false; |
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191 |
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192 data_hid = H5Dcreate (loc_id, name, H5T_NATIVE_DOUBLE, space_hid, |
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193 H5P_DEFAULT); |
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194 if (data_hid < 0) |
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195 { |
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196 H5Sclose (space_hid); |
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197 return false; |
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198 } |
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199 |
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200 double tmp = double_value (); |
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201 retval = H5Dwrite (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, |
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202 H5P_DEFAULT, &tmp) >= 0; |
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203 |
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204 H5Dclose (data_hid); |
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205 H5Sclose (space_hid); |
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206 |
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207 return retval; |
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208 } |
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209 |
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210 bool |
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211 octave_bool::load_hdf5 (hid_t loc_id, const char *name, |
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212 bool /* have_h5giterate_bug */) |
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213 { |
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214 hid_t data_hid = H5Dopen (loc_id, name); |
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215 hid_t space_id = H5Dget_space (data_hid); |
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216 |
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217 hsize_t rank = H5Sget_simple_extent_ndims (space_id); |
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218 |
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219 if (rank != 0) |
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220 { |
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221 H5Dclose (data_hid); |
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222 return false; |
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223 } |
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224 |
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225 double dtmp; |
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226 if (H5Dread (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, |
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227 H5P_DEFAULT, &dtmp) < 0) |
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228 { |
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229 H5Dclose (data_hid); |
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230 return false; |
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231 } |
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232 |
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233 scalar = (dtmp != 0.); |
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234 |
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235 H5Dclose (data_hid); |
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236 |
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237 return true; |
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238 } |
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239 |
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240 #endif |
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241 |
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242 mxArray * |
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243 octave_bool::as_mxArray (void) const |
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244 { |
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245 mxArray *retval = new mxArray (mxLOGICAL_CLASS, 1, 1, mxREAL); |
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246 |
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247 bool *pr = static_cast<bool *> (retval->get_data ()); |
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248 |
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249 pr[0] = scalar; |
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250 |
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251 return retval; |
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252 } |
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253 |
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254 /* |
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255 ;;; Local Variables: *** |
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256 ;;; mode: C++ *** |
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257 ;;; End: *** |
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258 */ |
