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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_complex_h) |
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24 #define octave_complex_h 1 |
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25 |
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26 #include <cstdlib> |
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27 |
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28 #include <iostream> |
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29 #include <string> |
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30 |
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31 #include "lo-ieee.h" |
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32 #include "mx-base.h" |
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33 #include "oct-alloc.h" |
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34 #include "str-vec.h" |
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35 |
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36 #include "error.h" |
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37 #include "ov-base.h" |
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38 #include "ov-cx-mat.h" |
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39 #include "ov-base-scalar.h" |
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40 #include "ov-typeinfo.h" |
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41 |
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42 class Octave_map; |
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43 class octave_value_list; |
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44 |
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45 class tree_walker; |
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46 |
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47 // Complex scalar values. |
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48 |
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49 class |
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50 octave_complex : public octave_base_scalar<Complex> |
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51 { |
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52 public: |
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53 |
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54 octave_complex (void) |
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55 : octave_base_scalar<Complex> () { } |
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56 |
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57 octave_complex (const Complex& c) |
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58 : octave_base_scalar<Complex> (c) { } |
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59 |
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60 octave_complex (const octave_complex& c) |
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61 : octave_base_scalar<Complex> (c) { } |
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62 |
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63 ~octave_complex (void) { } |
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64 |
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65 octave_value *clone (void) const { return new octave_complex (*this); } |
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66 |
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67 // We return an octave_complex_matrix object here instead of an |
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68 // octave_complex object so that in expressions like A(2,2,2) = 2 |
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69 // (for A previously undefined), A will be empty instead of a 1x1 |
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70 // object. |
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71 octave_value *empty_clone (void) const |
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72 { return new octave_complex_matrix (); } |
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73 |
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74 octave_value *try_narrowing_conversion (void); |
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75 |
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76 octave_value do_index_op (const octave_value_list& idx, int resize_ok); |
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77 |
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78 octave_value any (int = 0) const |
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79 { |
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80 return (scalar != Complex (0, 0) |
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81 && ! (lo_ieee_isnan (::real (scalar)) |
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82 || lo_ieee_isnan (::imag (scalar)))); |
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83 } |
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84 |
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85 bool is_complex_scalar (void) const { return true; } |
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86 |
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87 bool is_complex_type (void) const { return true; } |
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88 |
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89 // XXX FIXME XXX ??? |
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90 bool valid_as_scalar_index (void) const { return false; } |
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91 bool valid_as_zero_index (void) const { return false; } |
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92 |
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93 double double_value (bool = false) const; |
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94 |
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95 double scalar_value (bool frc_str_conv = false) const |
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96 { return double_value (frc_str_conv); } |
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97 |
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98 Matrix matrix_value (bool = false) const; |
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99 |
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100 NDArray array_value (bool = false) const; |
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101 |
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102 octave_value resize (const dim_vector& dv) const |
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103 { |
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104 ComplexNDArray retval (dv); |
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105 |
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106 if (dv.numel ()) |
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107 retval(0) = scalar; |
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108 |
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109 return retval; |
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110 } |
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111 |
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112 Complex complex_value (bool = false) const; |
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113 |
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114 ComplexMatrix complex_matrix_value (bool = false) const; |
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115 |
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116 ComplexNDArray complex_array_value (bool = false) const; |
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117 |
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118 void increment (void) { scalar += 1.0; } |
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119 |
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120 void decrement (void) { scalar -= 1.0; } |
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121 |
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122 bool save_ascii (std::ostream& os, bool& infnan_warned, |
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123 bool strip_nan_and_inf); |
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124 |
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125 bool load_ascii (std::istream& is); |
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126 |
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127 bool save_binary (std::ostream& os, bool& save_as_floats); |
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128 |
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129 bool load_binary (std::istream& is, bool swap, |
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130 oct_mach_info::float_format fmt); |
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131 |
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132 #if defined (HAVE_HDF5) |
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133 bool save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats); |
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134 |
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135 bool load_hdf5 (hid_t loc_id, const char *name, bool have_h5giterate_bug); |
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136 #endif |
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137 |
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138 int write (octave_stream& os, int block_size, |
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139 oct_data_conv::data_type output_type, int skip, |
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140 oct_mach_info::float_format flt_fmt) const |
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141 { |
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142 // Yes, for compatibility, we drop the imaginary part here. |
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143 return os.write (array_value (true), block_size, output_type, |
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144 skip, flt_fmt); |
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145 } |
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146 |
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147 private: |
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148 |
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149 DECLARE_OCTAVE_ALLOCATOR |
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150 |
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151 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA |
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152 }; |
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153 |
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154 typedef octave_complex octave_complex_scalar; |
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155 |
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156 #endif |
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157 |
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158 /* |
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159 ;;; Local Variables: *** |
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160 ;;; mode: C++ *** |
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161 ;;; End: *** |
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162 */ |
