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annotate src/ov-float.h @ 7922:935be827eaf8

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error for NaN values in & and | expressions
author John W. Eaton <jwe@octave.org>
date Fri, 11 Jul 2008 14:56:30 -0400
parents f336dd8e96d0
children cf59d542f33e
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7789
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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 #if !defined (octave_float_h)
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25 #define octave_float_h 1
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26
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27 #include <cstdlib>
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28
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29 #include <iostream>
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30 #include <string>
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31
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32 #include "lo-ieee.h"
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33 #include "lo-mappers.h"
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34 #include "lo-utils.h"
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35 #include "mx-base.h"
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36 #include "oct-alloc.h"
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37 #include "str-vec.h"
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38
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39 #include "gripes.h"
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40 #include "ov-base.h"
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41 #include "ov-re-mat.h"
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42 #include "ov-flt-re-mat.h"
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43 #include "ov-base-scalar.h"
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44 #include "ov-typeinfo.h"
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45
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46 class Octave_map;
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47 class octave_value_list;
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48
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49 class tree_walker;
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50
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51 // Real scalar values.
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52
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53 class
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54 OCTINTERP_API
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55 octave_float_scalar : public octave_base_scalar<float>
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56 {
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57 public:
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58
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59 octave_float_scalar (void)
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60 : octave_base_scalar<float> (0.0) { }
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61
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62 octave_float_scalar (float d)
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63 : octave_base_scalar<float> (d) { }
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64
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65 octave_float_scalar (const octave_float_scalar& s)
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66 : octave_base_scalar<float> (s) { }
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67
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68 ~octave_float_scalar (void) { }
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69
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70 octave_base_value *clone (void) const { return new octave_float_scalar (*this); }
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71
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72 // We return an octave_matrix here instead of an octave_float_scalar so
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73 // that in expressions like A(2,2,2) = 2 (for A previously
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74 // undefined), A will be empty instead of a 1x1 object.
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75 octave_base_value *empty_clone (void) const { return new octave_matrix (); }
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76
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77 octave_value do_index_op (const octave_value_list& idx,
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78 bool resize_ok = false);
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79
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80 idx_vector index_vector (void) const { return idx_vector (scalar); }
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81
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82 octave_value any (int = 0) const
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83 { return (scalar != 0 && ! lo_ieee_isnan (scalar)); }
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84
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85 bool is_real_scalar (void) const { return true; }
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86
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87 bool is_real_type (void) const { return true; }
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88
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89 bool is_single_type (void) const { return true; }
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90
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91 bool is_float_type (void) const { return true; }
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92
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93 bool valid_as_scalar_index (void) const
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94 {
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95 return (! xisnan (scalar)
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96 && F_NINT (scalar) == scalar
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97 && NINTbig (scalar) == 1);
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98 }
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99
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100 bool valid_as_zero_index (void) const
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101 {
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102 return (! xisnan (scalar)
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103 && F_NINT (scalar) == scalar
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104 && NINTbig (scalar) == 0);
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105 }
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106
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107 int8NDArray
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108 int8_array_value (void) const
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109 { return int8NDArray (dim_vector (1, 1), scalar); }
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110
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111 int16NDArray
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112 int16_array_value (void) const
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113 { return int16NDArray (dim_vector (1, 1), scalar); }
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114
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115 int32NDArray
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116 int32_array_value (void) const
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117 { return int32NDArray (dim_vector (1, 1), scalar); }
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118
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119 int64NDArray
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120 int64_array_value (void) const
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121 { return int64NDArray (dim_vector (1, 1), scalar); }
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122
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123 uint8NDArray
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124 uint8_array_value (void) const
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125 { return uint8NDArray (dim_vector (1, 1), scalar); }
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126
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127 uint16NDArray
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128 uint16_array_value (void) const
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129 { return uint16NDArray (dim_vector (1, 1), scalar); }
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130
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131 uint32NDArray
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132 uint32_array_value (void) const
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133 { return uint32NDArray (dim_vector (1, 1), scalar); }
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134
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135 uint64NDArray
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136 uint64_array_value (void) const
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137 { return uint64NDArray (dim_vector (1, 1), scalar); }
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138
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139 double double_value (bool = false) const { return static_cast<double> (scalar); }
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140
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141 float float_value (bool = false) const { return scalar; }
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142
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143 double scalar_value (bool = false) const { return static_cast<double> (scalar); }
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144
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145 float float_scalar_value (bool = false) const { return scalar; }
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146
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147 Matrix matrix_value (bool = false) const
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148 { return Matrix (1, 1, scalar); }
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149
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150 FloatMatrix float_matrix_value (bool = false) const
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151 { return FloatMatrix (1, 1, scalar); }
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152
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153 NDArray array_value (bool = false) const
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154 { return NDArray (dim_vector (1, 1), scalar); }
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155
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156 FloatNDArray float_array_value (bool = false) const
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157 { return FloatNDArray (dim_vector (1, 1), scalar); }
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158
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159 SparseMatrix sparse_matrix_value (bool = false) const
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160 { return SparseMatrix (Matrix (1, 1, scalar)); }
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161
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162 // XXX FIXME XXX Need SparseComplexMatrix (Matrix) constructor!!!
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163 SparseComplexMatrix sparse_complex_matrix_value (bool = false) const
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164 { return SparseComplexMatrix (sparse_matrix_value ()); }
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165
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166 octave_value resize (const dim_vector& dv, bool fill = false) const;
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167
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168 Complex complex_value (bool = false) const { return scalar; }
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169
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170 FloatComplex float_complex_value (bool = false) const { return scalar; }
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171
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172 ComplexMatrix complex_matrix_value (bool = false) const
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173 { return ComplexMatrix (1, 1, Complex (scalar)); }
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174
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175 FloatComplexMatrix float_complex_matrix_value (bool = false) const
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176 { return FloatComplexMatrix (1, 1, FloatComplex (scalar)); }
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177
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178 ComplexNDArray complex_array_value (bool = false) const
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179 { return ComplexNDArray (dim_vector (1, 1), Complex (scalar)); }
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180
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181 FloatComplexNDArray float_complex_array_value (bool = false) const
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182 { return FloatComplexNDArray (dim_vector (1, 1), FloatComplex (scalar)); }
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183
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184 charNDArray
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185 char_array_value (bool = false) const
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186 {
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187 charNDArray retval (dim_vector (1, 1));
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188 retval(0) = static_cast<char> (scalar);
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189 return retval;
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190 }
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191
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192 bool bool_value (bool warn = false) const
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193 {
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194 if (xisnan (scalar))
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195 error ("invalid conversion from NaN to logical");
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196 else if (warn && scalar != 0 && scalar != 1)
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197 gripe_logical_conversion ();
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198
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199 return scalar;
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200 }
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201
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202 boolNDArray bool_array_value (bool warn = false) const
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203 {
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204 if (xisnan (scalar))
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205 error ("invalid conversion from NaN to logical");
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206 else if (warn && scalar != 0 && scalar != 1)
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207 gripe_logical_conversion ();
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208
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209 return boolNDArray (dim_vector (1, 1), scalar);
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210 }
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211
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212 octave_value convert_to_str_internal (bool pad, bool force, char type) const;
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213
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214 void increment (void) { ++scalar; }
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215
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216 void decrement (void) { --scalar; }
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217
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218 bool save_ascii (std::ostream& os);
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219
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220 bool load_ascii (std::istream& is);
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221
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222 bool save_binary (std::ostream& os, bool& save_as_floats);
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223
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224 bool load_binary (std::istream& is, bool swap,
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225 oct_mach_info::float_format fmt);
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226
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227 #if defined (HAVE_HDF5)
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228 bool save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats);
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229
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230 bool load_hdf5 (hid_t loc_id, const char *name, bool have_h5giterate_bug);
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231 #endif
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232
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233 int write (octave_stream& os, int block_size,
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234 oct_data_conv::data_type output_type, int skip,
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235 oct_mach_info::float_format flt_fmt) const
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236 {
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237 return os.write (array_value (), block_size, output_type,
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238 skip, flt_fmt);
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239 }
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240
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241 mxArray *as_mxArray (void) const;
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242
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243 octave_value erf (void) const;
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244 octave_value erfc (void) const;
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245 octave_value gamma (void) const;
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246 octave_value lgamma (void) const;
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247 octave_value abs (void) const;
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248 octave_value acos (void) const;
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249 octave_value acosh (void) const;
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250 octave_value angle (void) const;
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251 octave_value arg (void) const;
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252 octave_value asin (void) const;
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253 octave_value asinh (void) const;
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254 octave_value atan (void) const;
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255 octave_value atanh (void) const;
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256 octave_value ceil (void) const;
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257 octave_value conj (void) const;
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258 octave_value cos (void) const;
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259 octave_value cosh (void) const;
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260 octave_value exp (void) const;
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261 octave_value expm1 (void) const;
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262 octave_value fix (void) const;
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263 octave_value floor (void) const;
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264 octave_value imag (void) const;
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265 octave_value log (void) const;
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266 octave_value log2 (void) const;
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267 octave_value log10 (void) const;
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268 octave_value log1p (void) const;
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269 octave_value real (void) const;
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270 octave_value round (void) const;
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271 octave_value roundb (void) const;
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272 octave_value signum (void) const;
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273 octave_value sin (void) const;
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274 octave_value sinh (void) const;
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275 octave_value sqrt (void) const;
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276 octave_value tan (void) const;
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277 octave_value tanh (void) const;
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278 octave_value finite (void) const;
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279 octave_value isinf (void) const;
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280 octave_value isna (void) const;
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281 octave_value isnan (void) const;
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282
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283 private:
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284 octave_value map (float (*fcn) (float)) const;
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285
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286 DECLARE_OCTAVE_ALLOCATOR
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287
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288 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA
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289 };
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290
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291 #endif
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292
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293 /*
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294 ;;; Local Variables: ***
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295 ;;; mode: C++ ***
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296 ;;; End: ***
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297 */