Mercurial > octave
annotate libinterp/corefcn/spparms.cc @ 30913:a4ed2fed7dfa
Add tests for automatic broadcasting with inplace times operator ".*=" (bug #38466).
* libinterp/corefcn/bsxfun.cc: Add tests for automatic broadcasting with inplace
times operator ".*=" with rhs of different shapes.
author | Markus Mützel <markus.muetzel@gmx.de> |
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date | Fri, 08 Apr 2022 17:50:00 +0200 |
parents | 796f54d4ddbf |
children | e88a07dec498 |
rev | line source |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 1998-2022 The Octave Project Developers |
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4 // |
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5 // See the file COPYRIGHT.md in the top-level directory of this |
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6 // distribution or <https://octave.org/copyright/>. |
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7 // |
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8 // This file is part of Octave. |
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9 // |
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10 // Octave is free software: you can redistribute it and/or modify it |
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11 // under the terms of the GNU General Public License as published by |
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12 // the Free Software Foundation, either version 3 of the License, or |
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13 // (at your option) any later version. |
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14 // |
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15 // Octave is distributed in the hope that it will be useful, but |
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 // GNU General Public License for more details. |
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19 // |
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20 // You should have received a copy of the GNU General Public License |
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21 // along with Octave; see the file COPYING. If not, see |
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22 // <https://www.gnu.org/licenses/>. |
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23 // |
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24 //////////////////////////////////////////////////////////////////////// |
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26 #if defined (HAVE_CONFIG_H) |
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27 # include "config.h" |
5164 | 28 #endif |
29 | |
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30 #include "defun.h" |
5164 | 31 #include "ov.h" |
32 #include "pager.h" | |
33 #include "error.h" | |
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34 #include "errwarn.h" |
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36 #include "oct-spparms.h" | |
37 | |
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38 OCTAVE_NAMESPACE_BEGIN |
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39 |
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40 DEFUN (spparms, args, nargout, |
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41 doc: /* -*- texinfo -*- |
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42 @deftypefn {} { } spparms () |
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43 @deftypefnx {} {@var{vals} =} spparms () |
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44 @deftypefnx {} {[@var{keys}, @var{vals}] =} spparms () |
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45 @deftypefnx {} {@var{val} =} spparms (@var{key}) |
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46 @deftypefnx {} { } spparms (@var{vals}) |
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47 @deftypefnx {} { } spparms ("default") |
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48 @deftypefnx {} { } spparms ("tight") |
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49 @deftypefnx {} { } spparms (@var{key}, @var{val}) |
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50 Query or set the parameters used by the sparse solvers and factorization |
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51 functions. |
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52 |
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53 The first four calls above get information about the current settings, while |
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54 the others change the current settings. The parameters are stored as pairs |
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55 of keys and values, where the values are all floats and the keys are one of |
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56 the following strings: |
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57 |
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58 @table @samp |
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59 @item spumoni |
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60 Printing level of debugging information of the solvers (default 0) |
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61 |
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62 @item ths_rel |
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63 Included for compatibility. Not used. (default 1) |
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64 |
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65 @item ths_abs |
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66 Included for compatibility. Not used. (default 1) |
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67 |
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68 @item exact_d |
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69 Included for compatibility. Not used. (default 0) |
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70 |
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71 @item supernd |
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72 Included for compatibility. Not used. (default 3) |
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73 |
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74 @item rreduce |
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75 Included for compatibility. Not used. (default 3) |
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76 |
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77 @item wh_frac |
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78 Included for compatibility. Not used. (default 0.5) |
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79 |
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80 @item autommd |
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81 Flag whether the LU/QR and the '\' and '/' operators will automatically |
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82 use the sparsity preserving mmd functions (default 1) |
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83 |
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84 @item autoamd |
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85 Flag whether the LU and the '\' and '/' operators will automatically |
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86 use the sparsity preserving amd functions (default 1) |
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87 |
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88 @item piv_tol |
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89 The pivot tolerance of the @sc{umfpack} solvers (default 0.1) |
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90 |
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91 @item sym_tol |
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92 The pivot tolerance of the @sc{umfpack} symmetric solvers (default 0.001) |
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93 |
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94 @item bandden |
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95 The density of nonzero elements in a banded matrix before it is treated |
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96 by the @sc{lapack} banded solvers (default 0.5) |
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97 |
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98 @item umfpack |
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99 Flag whether the @sc{umfpack} or mmd solvers are used for the LU, '\' and |
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100 '/' operations (default 1) |
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101 @end table |
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102 |
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103 The value of individual keys can be set with |
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104 @code{spparms (@var{key}, @var{val})}. |
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105 The default values can be restored with the special keyword |
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106 @qcode{"default"}. The special keyword @qcode{"tight"} can be used to |
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107 set the mmd solvers to attempt a sparser solution at the potential cost of |
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108 longer running time. |
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109 @seealso{chol, colamd, lu, qr, symamd} |
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110 @end deftypefn */) |
5164 | 111 { |
112 octave_value_list retval; | |
113 int nargin = args.length (); | |
114 | |
115 if (nargin == 0) | |
116 { | |
117 if (nargout == 0) | |
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118 sparse_params::print_info (octave_stdout, ""); |
5164 | 119 else if (nargout == 1) |
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120 retval = ovl (sparse_params::get_vals ()); |
5164 | 121 else if (nargout == 2) |
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122 retval = ovl (sparse_params::get_keys (), |
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123 sparse_params::get_vals ()); |
5164 | 124 else |
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125 error ("spparms: too many output arguments"); |
5164 | 126 } |
127 else if (nargin == 1) | |
128 { | |
129 if (args(0).is_string ()) | |
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130 { |
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131 std::string str = args(0).string_value (); |
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132 int len = str.length (); |
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133 for (int i = 0; i < len; i++) |
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134 str[i] = tolower (str[i]); |
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136 if (str == "default") |
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137 sparse_params::defaults (); |
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138 else if (str == "tight") |
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139 sparse_params::tight (); |
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140 else |
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141 { |
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142 double val = sparse_params::get_key (str); |
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143 if (math::isnan (val)) |
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144 error ("spparms: KEY not recognized"); |
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145 |
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146 retval = ovl (val); |
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147 } |
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148 } |
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150 { |
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151 NDArray vals = args(0).xarray_value ("spparms: input must be a string or a vector"); |
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152 if (vals.numel () > OCTAVE_SPARSE_CONTROLS_SIZE) |
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153 error ("spparms: too many elements in vector VALS"); |
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154 |
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155 sparse_params::set_vals (vals); |
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156 } |
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158 else if (nargin == 2) | |
159 { | |
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160 std::string str = args(0).xstring_value ("spparms: first argument must be a string"); |
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161 |
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162 double val = args(1).xdouble_value ("spparms: second argument must be a real scalar"); |
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164 if (str == "umfpack") |
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165 warning ("spparms: request to disable umfpack solvers ignored"); |
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166 else if (! sparse_params::set_key (str, val)) |
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167 error ("spparms: KEY not found"); |
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169 else | |
170 error ("spparms: too many input arguments"); | |
171 | |
172 return retval; | |
173 } | |
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174 |
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175 /* |
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176 %!test |
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177 %! old_vals = spparms (); # save state |
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178 %! spparms ("default"); |
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179 %! vals = spparms (); |
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180 %! assert (vals, [0 1 1 0 3 3 0.5 1.0 1.0 0.1 0.5 1.0 0.001]'); |
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181 %! [keys, vals] = spparms (); |
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182 %! assert (rows (keys), 13); |
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183 %! assert (keys(2,:), "ths_rel"); |
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184 %! assert (vals, [0 1 1 0 3 3 0.5 1.0 1.0 0.1 0.5 1.0 0.001]'); |
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185 %! spparms ([3 2 1]); |
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186 %! assert (spparms ()(1:3), [3, 2, 1]'); |
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187 %! assert (spparms ("ths_rel"), 2); |
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188 %! spparms ("exact_d", 5); |
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189 %! assert (spparms ("exact_d"), 5); |
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190 %! spparms (old_vals); # restore state |
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191 |
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192 ## Test input validation |
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193 %!error <too many input arguments> spparms (1, 2, 3) |
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194 %!error <too many output arguments> [x, y, z] = spparms () |
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195 %!error <KEY not recognized> spparms ("UNKNOWN_KEY") |
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196 %!#error <input must be a string> spparms ({1, 2, 3}) |
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197 %!error spparms ({1, 2, 3}) |
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198 %!error <too many elements in vector VALS> spparms (ones (14, 1)) |
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199 %!error <first argument must be a string> spparms (1, 1) |
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200 %!#error <second argument must be a real scalar> spparms ("ths_rel", "hello") |
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201 %!error spparms ("ths_rel", "hello") |
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202 %!error <KEY not found> spparms ("UNKNOWN_KEY", 1) |
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203 */ |
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204 |
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205 OCTAVE_NAMESPACE_END |