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1 /* |
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2 |
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3 Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2006, |
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4 2007 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 3 of the License, or (at your |
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11 option) any later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, see |
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20 <http://www.gnu.org/licenses/>. |
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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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28 #include <iostream> |
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29 |
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30 #include "mx-base.h" |
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31 |
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32 #include "gripes.h" |
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33 #include "oct-obj.h" |
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34 #include "ops.h" |
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35 #include "ov-bool.h" |
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36 #include "ov-bool-mat.h" |
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37 #include "ov-base.h" |
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38 #include "ov-base-scalar.h" |
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39 #include "ov-base-scalar.cc" |
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40 #include "ov-re-mat.h" |
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41 #include "ov-scalar.h" |
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42 #include "pr-output.h" |
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43 |
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44 #include "ls-oct-ascii.h" |
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45 #include "ls-hdf5.h" |
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46 |
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47 template class octave_base_scalar<bool>; |
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48 |
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49 DEFINE_OCTAVE_ALLOCATOR (octave_bool); |
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50 |
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51 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_bool, "bool", "logical"); |
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52 |
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53 static octave_base_value * |
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54 default_numeric_conversion_function (const octave_base_value& a) |
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55 { |
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56 CAST_CONV_ARG (const octave_bool&); |
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57 |
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58 return new octave_scalar (v.bool_value ()); |
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59 } |
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60 |
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61 octave_base_value::type_conv_fcn |
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62 octave_bool::numeric_conversion_function (void) const |
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63 { |
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64 return default_numeric_conversion_function; |
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65 } |
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66 |
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67 static inline bool |
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68 valid_scalar_indices (const octave_value_list& args) |
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69 { |
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70 int nargin = args.length (); |
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71 |
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72 for (int i = 0; i < nargin; i++) |
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73 if (! args(i).valid_as_scalar_index ()) |
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74 return false; |
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75 |
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76 return true; |
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77 } |
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78 |
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79 octave_value |
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80 octave_bool::do_index_op (const octave_value_list& idx, bool resize_ok) |
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81 { |
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82 octave_value retval; |
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83 |
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84 if (valid_scalar_indices (idx)) |
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85 retval = scalar; |
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86 else |
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87 { |
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88 // FIXME -- this doesn't solve the problem of |
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89 // |
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90 // a = 1; a([1,1], [1,1], [1,1]) |
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91 // |
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92 // and similar constructions. Hmm... |
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93 |
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94 // FIXME -- using this constructor avoids narrowing the |
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95 // 1x1 matrix back to a scalar value. Need a better solution |
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96 // to this problem. |
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97 |
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98 octave_value tmp (new octave_bool_matrix (bool_matrix_value ())); |
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99 |
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100 retval = tmp.do_index_op (idx, resize_ok); |
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101 } |
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102 |
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103 return retval; |
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104 } |
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105 |
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106 octave_value |
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107 octave_bool::resize (const dim_vector& dv, bool fill) const |
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108 { |
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109 if (fill) |
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110 { |
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111 boolNDArray retval (dv, false); |
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112 if (dv.numel()) |
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113 retval(0) = scalar; |
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114 return retval; |
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115 } |
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116 else |
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117 { |
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118 boolNDArray retval (dv); |
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119 if (dv.numel()) |
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120 retval(0) = scalar; |
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121 return retval; |
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122 } |
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123 } |
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124 |
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125 octave_value |
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126 octave_bool::convert_to_str_internal (bool, bool, char type) const |
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127 { |
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128 char s[2]; |
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129 s[0] = static_cast<char> (scalar); |
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130 s[1] = '\0'; |
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131 |
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132 return octave_value (s, type); |
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133 } |
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134 |
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135 bool |
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136 octave_bool::save_ascii (std::ostream& os) |
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137 { |
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138 double d = double_value (); |
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139 |
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140 octave_write_double (os, d); |
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141 os << "\n"; |
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142 |
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143 return true; |
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144 } |
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145 |
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146 bool |
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147 octave_bool::load_ascii (std::istream& is) |
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148 { |
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149 scalar = (octave_read_double (is) != 0.); |
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150 |
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151 if (!is) |
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152 { |
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153 error ("load: failed to load scalar constant"); |
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154 return false; |
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155 } |
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156 |
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157 return true; |
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158 } |
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159 |
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160 bool |
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161 octave_bool::save_binary (std::ostream& os, bool& /* save_as_floats */) |
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162 { |
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163 char tmp = (scalar ? 1 : 0); |
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164 os.write (reinterpret_cast<char *> (&tmp), 1); |
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165 |
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166 return true; |
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167 } |
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168 |
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169 bool |
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170 octave_bool::load_binary (std::istream& is, bool /* swap */, |
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171 oct_mach_info::float_format /* fmt */) |
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172 { |
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173 char tmp; |
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174 if (! is.read (reinterpret_cast<char *> (&tmp), 1)) |
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175 return false; |
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176 scalar = (tmp ? 1 : 0); |
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177 return true; |
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178 } |
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179 |
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180 #if defined (HAVE_HDF5) |
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181 |
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182 bool |
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183 octave_bool::save_hdf5 (hid_t loc_id, const char *name, |
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184 bool /* save_as_floats */) |
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185 { |
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186 hsize_t dimens[3]; |
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187 hid_t space_hid = -1, data_hid = -1; |
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188 bool retval = true; |
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189 |
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190 space_hid = H5Screate_simple (0, dimens, 0); |
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191 if (space_hid < 0) return false; |
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192 |
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193 data_hid = H5Dcreate (loc_id, name, H5T_NATIVE_DOUBLE, space_hid, |
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194 H5P_DEFAULT); |
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195 if (data_hid < 0) |
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196 { |
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197 H5Sclose (space_hid); |
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198 return false; |
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199 } |
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200 |
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201 double tmp = double_value (); |
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202 retval = H5Dwrite (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, |
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203 H5P_DEFAULT, &tmp) >= 0; |
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204 |
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205 H5Dclose (data_hid); |
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206 H5Sclose (space_hid); |
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207 |
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208 return retval; |
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209 } |
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210 |
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211 bool |
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212 octave_bool::load_hdf5 (hid_t loc_id, const char *name, |
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213 bool /* have_h5giterate_bug */) |
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214 { |
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215 hid_t data_hid = H5Dopen (loc_id, name); |
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216 hid_t space_id = H5Dget_space (data_hid); |
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217 |
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218 hsize_t rank = H5Sget_simple_extent_ndims (space_id); |
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219 |
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220 if (rank != 0) |
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221 { |
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222 H5Dclose (data_hid); |
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223 return false; |
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224 } |
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225 |
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226 double dtmp; |
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227 if (H5Dread (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, |
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228 H5P_DEFAULT, &dtmp) < 0) |
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229 { |
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230 H5Dclose (data_hid); |
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231 return false; |
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232 } |
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233 |
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234 scalar = (dtmp != 0.); |
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235 |
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236 H5Dclose (data_hid); |
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237 |
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238 return true; |
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239 } |
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240 |
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241 #endif |
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242 |
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243 mxArray * |
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244 octave_bool::as_mxArray (void) const |
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245 { |
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246 mxArray *retval = new mxArray (mxLOGICAL_CLASS, 1, 1, mxREAL); |
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247 |
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248 bool *pr = static_cast<bool *> (retval->get_data ()); |
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249 |
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250 pr[0] = scalar; |
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251 |
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252 return retval; |
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253 } |
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254 |
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255 /* |
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256 ;;; Local Variables: *** |
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257 ;;; mode: C++ *** |
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258 ;;; End: *** |
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259 */ |
