Mercurial > jwe > octave
annotate liboctave/array/fCRowVector.cc @ 21120:499b851fbfae
Replace pattern if/err_XXX/else/code with if/err_XXX/ code.
* schur.cc, ov-complex.h, ov-cx-mat.cc, ov-cx-sparse.cc, ov-float.h,
ov-flt-complex.h, ov-flt-cx-mat.cc, ov-flt-re-mat.cc, ov-range.cc,
ov-re-mat.cc, ov-re-sparse.cc, ov-scalar.h, ov-str-mat.cc, ops.h, pt-idx.cc,
Array.cc, CColVector.cc, CMatrix.cc, CRowVector.cc, MSparse.cc, PermMatrix.cc,
Sparse.cc, dColVector.cc, dMatrix.cc, dRowVector.cc, dSparse.cc,
fCColVector.cc, fCMatrix.cc, fCRowVector.cc, fColVector.cc, fMatrix.cc,
fRowVector.cc:
Replace pattern if/err_XXX/else/code with if/err_XXX/ code.
author | Rik <rik@octave.org> |
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date | Wed, 20 Jan 2016 16:58:59 -0800 |
parents | e39e05d90788 |
children | 228b65504557 |
rev | line source |
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1 // RowVector manipulations. |
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2 /* |
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3 |
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4 Copyright (C) 1994-2015 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 "Array-util.h" |
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31 #include "f77-fcn.h" |
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32 #include "functor.h" |
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33 #include "lo-error.h" |
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34 #include "mx-base.h" |
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35 #include "mx-inlines.cc" |
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36 #include "oct-cmplx.h" |
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37 |
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38 // Fortran functions we call. |
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39 |
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40 extern "C" |
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41 { |
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42 F77_RET_T |
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43 F77_FUNC (cgemv, CGEMV) (F77_CONST_CHAR_ARG_DECL, |
11518 | 44 const octave_idx_type&, const octave_idx_type&, |
45 const FloatComplex&, const FloatComplex*, | |
46 const octave_idx_type&, const FloatComplex*, | |
47 const octave_idx_type&, const FloatComplex&, | |
48 FloatComplex*, const octave_idx_type& | |
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49 F77_CHAR_ARG_LEN_DECL); |
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50 |
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51 F77_RET_T |
11518 | 52 F77_FUNC (xcdotu, XCDOTU) (const octave_idx_type&, const FloatComplex*, |
53 const octave_idx_type&, const FloatComplex*, | |
54 const octave_idx_type&, FloatComplex&); | |
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55 } |
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56 |
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57 // FloatComplex Row Vector class |
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58 |
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59 bool |
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60 FloatComplexRowVector::operator == (const FloatComplexRowVector& a) const |
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61 { |
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62 octave_idx_type len = numel (); |
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63 if (len != a.numel ()) |
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64 return 0; |
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65 return mx_inline_equal (len, data (), a.data ()); |
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66 } |
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67 |
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68 bool |
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69 FloatComplexRowVector::operator != (const FloatComplexRowVector& a) const |
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70 { |
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71 return !(*this == a); |
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72 } |
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73 |
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74 // destructive insert/delete/reorder operations |
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75 |
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76 FloatComplexRowVector& |
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77 FloatComplexRowVector::insert (const FloatRowVector& a, octave_idx_type c) |
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78 { |
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79 octave_idx_type a_len = a.numel (); |
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80 |
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81 if (c < 0 || c + a_len > numel ()) |
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82 { |
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83 (*current_liboctave_error_handler) ("range error for insert"); |
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84 return *this; |
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85 } |
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86 |
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87 if (a_len > 0) |
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88 { |
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89 make_unique (); |
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90 |
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91 for (octave_idx_type i = 0; i < a_len; i++) |
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92 xelem (c+i) = a.elem (i); |
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93 } |
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94 |
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95 return *this; |
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96 } |
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97 |
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98 FloatComplexRowVector& |
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99 FloatComplexRowVector::insert (const FloatComplexRowVector& a, |
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100 octave_idx_type c) |
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101 { |
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102 octave_idx_type a_len = a.numel (); |
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103 |
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104 if (c < 0 || c + a_len > numel ()) |
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105 { |
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106 (*current_liboctave_error_handler) ("range error for insert"); |
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107 return *this; |
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108 } |
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109 |
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110 if (a_len > 0) |
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111 { |
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112 make_unique (); |
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113 |
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114 for (octave_idx_type i = 0; i < a_len; i++) |
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115 xelem (c+i) = a.elem (i); |
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116 } |
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117 |
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118 return *this; |
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119 } |
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120 |
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121 FloatComplexRowVector& |
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122 FloatComplexRowVector::fill (float val) |
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123 { |
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124 octave_idx_type len = numel (); |
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125 |
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126 if (len > 0) |
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127 { |
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128 make_unique (); |
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129 |
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130 for (octave_idx_type i = 0; i < len; i++) |
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131 xelem (i) = val; |
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132 } |
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133 |
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134 return *this; |
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135 } |
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136 |
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137 FloatComplexRowVector& |
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138 FloatComplexRowVector::fill (const FloatComplex& val) |
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139 { |
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140 octave_idx_type len = numel (); |
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141 |
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142 if (len > 0) |
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143 { |
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144 make_unique (); |
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145 |
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146 for (octave_idx_type i = 0; i < len; i++) |
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147 xelem (i) = val; |
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148 } |
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149 |
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150 return *this; |
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151 } |
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152 |
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153 FloatComplexRowVector& |
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154 FloatComplexRowVector::fill (float val, octave_idx_type c1, octave_idx_type c2) |
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155 { |
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156 octave_idx_type len = numel (); |
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157 |
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158 if (c1 < 0 || c2 < 0 || c1 >= len || c2 >= len) |
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159 { |
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160 (*current_liboctave_error_handler) ("range error for fill"); |
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161 return *this; |
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162 } |
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163 |
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164 if (c1 > c2) { std::swap (c1, c2); } |
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165 |
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166 if (c2 >= c1) |
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167 { |
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168 make_unique (); |
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169 |
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170 for (octave_idx_type i = c1; i <= c2; i++) |
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171 xelem (i) = val; |
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172 } |
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173 |
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174 return *this; |
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175 } |
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176 |
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177 FloatComplexRowVector& |
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178 FloatComplexRowVector::fill (const FloatComplex& val, |
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179 octave_idx_type c1, octave_idx_type c2) |
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180 { |
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181 octave_idx_type len = numel (); |
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182 |
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183 if (c1 < 0 || c2 < 0 || c1 >= len || c2 >= len) |
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184 { |
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185 (*current_liboctave_error_handler) ("range error for fill"); |
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186 return *this; |
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187 } |
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188 |
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189 if (c1 > c2) { std::swap (c1, c2); } |
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190 |
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191 if (c2 >= c1) |
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192 { |
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193 make_unique (); |
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194 |
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195 for (octave_idx_type i = c1; i <= c2; i++) |
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196 xelem (i) = val; |
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197 } |
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198 |
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199 return *this; |
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200 } |
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201 |
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202 FloatComplexRowVector |
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203 FloatComplexRowVector::append (const FloatRowVector& a) const |
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204 { |
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205 octave_idx_type len = numel (); |
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206 octave_idx_type nc_insert = len; |
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207 FloatComplexRowVector retval (len + a.numel ()); |
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208 retval.insert (*this, 0); |
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209 retval.insert (a, nc_insert); |
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210 return retval; |
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211 } |
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212 |
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213 FloatComplexRowVector |
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214 FloatComplexRowVector::append (const FloatComplexRowVector& a) const |
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215 { |
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216 octave_idx_type len = numel (); |
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217 octave_idx_type nc_insert = len; |
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218 FloatComplexRowVector retval (len + a.numel ()); |
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219 retval.insert (*this, 0); |
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220 retval.insert (a, nc_insert); |
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221 return retval; |
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222 } |
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223 |
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224 FloatComplexColumnVector |
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225 FloatComplexRowVector::hermitian (void) const |
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226 { |
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227 return MArray<FloatComplex>::hermitian (std::conj); |
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228 } |
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229 |
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230 FloatComplexColumnVector |
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231 FloatComplexRowVector::transpose (void) const |
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232 { |
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233 return MArray<FloatComplex>::transpose (); |
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234 } |
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235 |
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236 FloatComplexRowVector |
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237 conj (const FloatComplexRowVector& a) |
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238 { |
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239 return do_mx_unary_map<FloatComplex, FloatComplex, std::conj<float> > (a); |
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240 } |
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241 |
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242 // resize is the destructive equivalent for this one |
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243 |
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244 FloatComplexRowVector |
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245 FloatComplexRowVector::extract (octave_idx_type c1, octave_idx_type c2) const |
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246 { |
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247 if (c1 > c2) { std::swap (c1, c2); } |
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248 |
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249 octave_idx_type new_c = c2 - c1 + 1; |
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250 |
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251 FloatComplexRowVector result (new_c); |
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252 |
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253 for (octave_idx_type i = 0; i < new_c; i++) |
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254 result.elem (i) = elem (c1+i); |
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255 |
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256 return result; |
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257 } |
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258 |
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259 FloatComplexRowVector |
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260 FloatComplexRowVector::extract_n (octave_idx_type r1, octave_idx_type n) const |
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261 { |
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262 FloatComplexRowVector result (n); |
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263 |
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264 for (octave_idx_type i = 0; i < n; i++) |
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265 result.elem (i) = elem (r1+i); |
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266 |
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267 return result; |
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268 } |
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269 |
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270 // row vector by row vector -> row vector operations |
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271 |
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272 FloatComplexRowVector& |
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273 FloatComplexRowVector::operator += (const FloatRowVector& a) |
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274 { |
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275 octave_idx_type len = numel (); |
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276 |
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277 octave_idx_type a_len = a.numel (); |
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278 |
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279 if (len != a_len) |
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280 { |
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281 err_nonconformant ("operator +=", len, a_len); |
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282 return *this; |
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283 } |
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284 |
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285 if (len == 0) |
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286 return *this; |
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287 |
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288 FloatComplex *d = fortran_vec (); // Ensures only 1 reference to my privates! |
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289 |
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290 mx_inline_add2 (len, d, a.data ()); |
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291 return *this; |
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292 } |
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293 |
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294 FloatComplexRowVector& |
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295 FloatComplexRowVector::operator -= (const FloatRowVector& a) |
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296 { |
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297 octave_idx_type len = numel (); |
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298 |
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299 octave_idx_type a_len = a.numel (); |
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300 |
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301 if (len != a_len) |
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302 { |
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303 err_nonconformant ("operator -=", len, a_len); |
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304 return *this; |
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305 } |
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306 |
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307 if (len == 0) |
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308 return *this; |
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309 |
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310 FloatComplex *d = fortran_vec (); // Ensures only 1 reference to my privates! |
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311 |
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312 mx_inline_sub2 (len, d, a.data ()); |
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313 return *this; |
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314 } |
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315 |
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316 // row vector by matrix -> row vector |
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317 |
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318 FloatComplexRowVector |
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319 operator * (const FloatComplexRowVector& v, const FloatComplexMatrix& a) |
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320 { |
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321 FloatComplexRowVector retval; |
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322 |
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323 octave_idx_type len = v.numel (); |
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324 |
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325 octave_idx_type a_nr = a.rows (); |
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326 octave_idx_type a_nc = a.cols (); |
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327 |
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328 if (a_nr != len) |
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329 err_nonconformant ("operator *", 1, len, a_nr, a_nc); |
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330 |
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331 if (len == 0) |
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332 retval.resize (a_nc, 0.0); |
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333 else |
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334 { |
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335 // Transpose A to form A'*x == (x'*A)' |
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336 |
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337 octave_idx_type ld = a_nr; |
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338 |
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339 retval.resize (a_nc); |
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340 FloatComplex *y = retval.fortran_vec (); |
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341 |
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342 F77_XFCN (cgemv, CGEMV, (F77_CONST_CHAR_ARG2 ("T", 1), |
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343 a_nr, a_nc, 1.0, a.data (), |
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344 ld, v.data (), 1, 0.0, y, 1 |
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345 F77_CHAR_ARG_LEN (1))); |
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346 } |
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347 |
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348 return retval; |
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349 } |
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350 |
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351 FloatComplexRowVector |
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352 operator * (const FloatRowVector& v, const FloatComplexMatrix& a) |
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353 { |
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354 FloatComplexRowVector tmp (v); |
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355 return tmp * a; |
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356 } |
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357 |
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358 // other operations |
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359 |
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360 FloatComplex |
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361 FloatComplexRowVector::min (void) const |
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362 { |
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363 octave_idx_type len = numel (); |
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364 if (len == 0) |
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365 return FloatComplex (0.0); |
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366 |
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367 FloatComplex res = elem (0); |
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368 float absres = std::abs (res); |
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369 |
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370 for (octave_idx_type i = 1; i < len; i++) |
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371 if (std::abs (elem (i)) < absres) |
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372 { |
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373 res = elem (i); |
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374 absres = std::abs (res); |
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375 } |
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376 |
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377 return res; |
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378 } |
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379 |
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380 FloatComplex |
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381 FloatComplexRowVector::max (void) const |
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382 { |
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383 octave_idx_type len = numel (); |
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384 if (len == 0) |
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385 return FloatComplex (0.0); |
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386 |
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387 FloatComplex res = elem (0); |
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388 float absres = std::abs (res); |
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389 |
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390 for (octave_idx_type i = 1; i < len; i++) |
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391 if (std::abs (elem (i)) > absres) |
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392 { |
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393 res = elem (i); |
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394 absres = std::abs (res); |
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395 } |
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396 |
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397 return res; |
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398 } |
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399 |
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400 // i/o |
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401 |
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402 std::ostream& |
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403 operator << (std::ostream& os, const FloatComplexRowVector& a) |
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404 { |
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405 // int field_width = os.precision () + 7; |
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406 for (octave_idx_type i = 0; i < a.numel (); i++) |
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407 os << " " /* setw (field_width) */ << a.elem (i); |
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408 return os; |
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409 } |
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410 |
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411 std::istream& |
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412 operator >> (std::istream& is, FloatComplexRowVector& a) |
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413 { |
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414 octave_idx_type len = a.numel (); |
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415 |
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416 if (len > 0) |
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417 { |
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418 FloatComplex tmp; |
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419 for (octave_idx_type i = 0; i < len; i++) |
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420 { |
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421 is >> tmp; |
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422 if (is) |
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423 a.elem (i) = tmp; |
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424 else |
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425 break; |
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426 } |
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427 } |
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428 return is; |
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429 } |
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430 |
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431 // row vector by column vector -> scalar |
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432 |
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433 // row vector by column vector -> scalar |
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434 |
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435 FloatComplex |
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436 operator * (const FloatComplexRowVector& v, const FloatColumnVector& a) |
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437 { |
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438 FloatComplexColumnVector tmp (a); |
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439 return v * tmp; |
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440 } |
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441 |
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442 FloatComplex |
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443 operator * (const FloatComplexRowVector& v, const FloatComplexColumnVector& a) |
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444 { |
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445 FloatComplex retval (0.0, 0.0); |
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446 |
20232
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Deprecate Array::length() and Sparse::length() in favour of ::numel().
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447 octave_idx_type len = v.numel (); |
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448 |
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449 octave_idx_type a_len = a.numel (); |
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450 |
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451 if (len != a_len) |
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452 err_nonconformant ("operator *", len, a_len); |
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453 |
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454 if (len != 0) |
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455 F77_FUNC (xcdotu, XCDOTU) (len, v.data (), 1, a.data (), 1, retval); |
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456 |
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457 return retval; |
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458 } |
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459 |
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460 // other operations |
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461 |
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462 FloatComplexRowVector |
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463 linspace (const FloatComplex& x1, const FloatComplex& x2, octave_idx_type n) |
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464 { |
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465 NoAlias<FloatComplexRowVector> retval; |
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466 |
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467 if (n < 1) |
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468 return retval; |
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469 else |
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470 retval.clear (n); |
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471 |
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472 retval(0) = x1; |
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473 |
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474 FloatComplex delta = (x2 - x1) / (n - 1.0f); |
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475 for (octave_idx_type i = 1; i < n-1; i++) |
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476 retval(i) = x1 + static_cast<float> (i)*delta; |
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477 |
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478 retval(n-1) = x2; |
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479 |
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480 return retval; |
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481 } |