Mercurial > octave
annotate libinterp/corefcn/mxarray.in.h @ 26405:b352120504bc stable
ensure valid pointer is passed to strcpy (bug #55347)
* mxarray.in.h (mxArray::strsave): Check result of mxArray::malloc.
author | John W. Eaton <jwe@octave.org> |
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date | Thu, 03 Jan 2019 13:23:45 -0500 |
parents | 8716297db545 |
children | b442ec6dda5c 2310164737b3 |
rev | line source |
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1 // %NO_EDIT_WARNING% |
6686 | 2 /* |
3 | |
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4 Copyright (C) 2001-2019 Paul Kienzle |
6686 | 5 |
6 This file is part of Octave. | |
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 |
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10 the Free Software Foundation, either version 3 of the License, or |
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11 (at your option) any later version. |
6686 | 12 |
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13 Octave is distributed in the hope that it will be useful, but |
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14 WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 GNU General Public License for more details. |
6686 | 17 |
18 You should have received a copy of the GNU General Public License | |
7016 | 19 along with Octave; see the file COPYING. If not, see |
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20 <https://www.gnu.org/licenses/>. |
6686 | 21 |
22 */ | |
23 | |
24 /* | |
25 | |
26 Part of this code was originally distributed as part of Octave Forge under | |
27 the following terms: | |
28 | |
29 Author: Paul Kienzle | |
30 I grant this code to the public domain. | |
31 2001-03-22 | |
32 | |
33 THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
34 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
35 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
36 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
37 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
38 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
39 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
40 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
41 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
42 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
43 SUCH DAMAGE. | |
44 | |
45 */ | |
46 | |
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47 #if ! defined (octave_mxarray_h) |
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48 #define octave_mxarray_h 1 |
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50 #include "octave-config.h" |
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51 |
6686 | 52 typedef enum |
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53 { |
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54 mxUNKNOWN_CLASS = 0, |
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55 mxCELL_CLASS, |
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56 mxSTRUCT_CLASS, |
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57 mxLOGICAL_CLASS, |
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58 mxCHAR_CLASS, |
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59 mxVOID_CLASS, |
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60 mxDOUBLE_CLASS, |
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61 mxSINGLE_CLASS, |
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62 mxINT8_CLASS, |
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63 mxUINT8_CLASS, |
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64 mxINT16_CLASS, |
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65 mxUINT16_CLASS, |
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66 mxINT32_CLASS, |
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67 mxUINT32_CLASS, |
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68 mxINT64_CLASS, |
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69 mxUINT64_CLASS, |
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70 mxFUNCTION_CLASS |
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71 } |
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72 mxClassID; |
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74 typedef enum |
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75 { |
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76 mxREAL = 0, |
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77 mxCOMPLEX = 1 |
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78 } |
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79 mxComplexity; |
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81 /* Matlab uses a wide char (uint16) internally, but Octave uses plain char. */ |
6686 | 82 /* typedef Uint16 mxChar; */ |
83 typedef char mxChar; | |
84 | |
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85 typedef unsigned char mxLogical; |
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86 |
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87 /* |
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88 * FIXME: Mathworks says mwSize, mwIndex should be int generally. |
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89 * But on 64-bit systems, or when mex -largeArrayDims is used, it is size_t. |
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90 * mwSignedIndex is supposed to be ptrdiff_t. All of this is confusing. |
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91 * Its better to conform to the same indexing as the rest of Octave. |
6686 | 92 */ |
9906 | 93 typedef %OCTAVE_IDX_TYPE% mwSize; |
94 typedef %OCTAVE_IDX_TYPE% mwIndex; | |
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95 typedef %OCTAVE_IDX_TYPE% mwSignedIndex; |
6686 | 96 |
97 #if ! defined (MXARRAY_TYPEDEFS_ONLY) | |
98 | |
7417 | 99 #include <cstring> |
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100 #include "error.h" |
7417 | 101 |
6686 | 102 class octave_value; |
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103 class dim_vector; |
6686 | 104 |
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105 #define DO_MUTABLE_METHOD(RET_T, METHOD_CALL) \ |
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106 RET_T retval = rep->METHOD_CALL; \ |
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107 \ |
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108 if (rep->mutation_needed ()) \ |
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109 { \ |
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110 maybe_mutate (); \ |
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111 retval = rep->METHOD_CALL; \ |
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112 } \ |
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113 \ |
6686 | 114 return retval |
115 | |
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116 #define DO_VOID_MUTABLE_METHOD(METHOD_CALL) \ |
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117 rep->METHOD_CALL; \ |
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118 \ |
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119 if (rep->mutation_needed ()) \ |
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120 { \ |
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121 maybe_mutate (); \ |
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122 rep->METHOD_CALL; \ |
6686 | 123 } |
124 | |
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125 class mxArray; |
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126 |
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127 // A class to provide the default implementation of some of the |
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128 // virtual functions declared in the mxArray class. |
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129 |
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130 class mxArray_base |
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131 { |
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132 protected: |
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133 |
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134 mxArray_base (void) { } |
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135 |
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136 public: |
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137 |
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138 virtual mxArray_base * dup (void) const = 0; |
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139 |
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140 virtual mxArray * as_mxArray (void) const { return nullptr; } |
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141 |
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142 virtual ~mxArray_base (void) = default; |
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143 |
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144 virtual bool is_octave_value (void) const { return false; } |
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145 |
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146 virtual int iscell (void) const = 0; |
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147 |
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148 virtual int is_char (void) const = 0; |
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149 |
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150 virtual int is_class (const char *name_arg) const |
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151 { |
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152 int retval = 0; |
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153 |
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154 const char *cname = get_class_name (); |
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155 |
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156 if (cname && name_arg) |
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157 retval = ! strcmp (cname, name_arg); |
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158 |
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159 return retval; |
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160 } |
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161 |
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162 virtual int is_complex (void) const = 0; |
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163 |
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164 virtual int is_double (void) const = 0; |
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165 |
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166 virtual int is_function_handle (void) const = 0; |
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167 |
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168 virtual int is_int16 (void) const = 0; |
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169 |
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170 virtual int is_int32 (void) const = 0; |
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171 |
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172 virtual int is_int64 (void) const = 0; |
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173 |
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174 virtual int is_int8 (void) const = 0; |
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175 |
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176 virtual int is_logical (void) const = 0; |
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177 |
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178 virtual int is_numeric (void) const = 0; |
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179 |
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180 virtual int is_single (void) const = 0; |
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181 |
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182 virtual int is_sparse (void) const = 0; |
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183 |
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184 virtual int is_struct (void) const = 0; |
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185 |
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186 virtual int is_uint16 (void) const = 0; |
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187 |
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188 virtual int is_uint32 (void) const = 0; |
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189 |
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190 virtual int is_uint64 (void) const = 0; |
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191 |
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192 virtual int is_uint8 (void) const = 0; |
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193 |
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194 virtual int is_logical_scalar (void) const |
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195 { |
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196 return is_logical () && get_number_of_elements () == 1; |
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197 } |
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198 |
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199 virtual int is_logical_scalar_true (void) const = 0; |
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200 |
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201 virtual mwSize get_m (void) const = 0; |
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202 |
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203 virtual mwSize get_n (void) const = 0; |
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204 |
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205 virtual mwSize * get_dimensions (void) const = 0; |
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206 |
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207 virtual mwSize get_number_of_dimensions (void) const = 0; |
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209 virtual void set_m (mwSize m) = 0; |
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210 |
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211 virtual void set_n (mwSize n) = 0; |
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212 |
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213 virtual int set_dimensions (mwSize *dims_arg, mwSize ndims_arg) = 0; |
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214 |
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215 virtual mwSize get_number_of_elements (void) const = 0; |
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216 |
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217 virtual int isempty (void) const = 0; |
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218 |
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219 virtual bool is_scalar (void) const = 0; |
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220 |
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221 virtual mxClassID get_class_id (void) const = 0; |
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222 |
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223 virtual const char * get_class_name (void) const = 0; |
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224 |
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225 virtual void set_class_name (const char *name_arg) = 0; |
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226 |
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227 // The following functions aren't pure virtual becuase they are only |
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228 // valid for one type. Making them pure virtual would mean tha they |
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229 // have to be implemented for all derived types, and all of those |
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230 // would need to throw errors instead of just doing it once here. |
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231 |
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232 virtual mxArray * |
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233 get_property (mwIndex /*idx*/, const char * /*pname*/) const |
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234 { |
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235 return nullptr; |
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236 } |
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237 |
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238 virtual void set_property (mwIndex /*idx*/, const char * /*pname*/, |
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239 const mxArray * /*pval*/) |
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240 { |
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241 err_invalid_type (); |
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242 } |
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243 |
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244 virtual mxArray * get_cell (mwIndex /*idx*/) const |
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245 { |
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246 err_invalid_type (); |
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247 } |
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248 |
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249 virtual void set_cell (mwIndex idx, mxArray *val) = 0; |
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250 |
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251 virtual double get_scalar (void) const = 0; |
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252 |
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253 virtual void * get_data (void) const = 0; |
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254 |
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255 virtual void * get_imag_data (void) const = 0; |
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256 |
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257 virtual void set_data (void *pr) = 0; |
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258 |
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259 virtual void set_imag_data (void *pi) = 0; |
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260 |
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261 virtual mwIndex * get_ir (void) const = 0; |
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262 |
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263 virtual mwIndex * get_jc (void) const = 0; |
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264 |
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265 virtual mwSize get_nzmax (void) const = 0; |
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266 |
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267 virtual void set_ir (mwIndex *ir) = 0; |
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268 |
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269 virtual void set_jc (mwIndex *jc) = 0; |
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270 |
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271 virtual void set_nzmax (mwSize nzmax) = 0; |
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272 |
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273 virtual int add_field (const char *key) = 0; |
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274 |
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275 virtual void remove_field (int key_num) = 0; |
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276 |
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277 virtual mxArray * get_field_by_number (mwIndex index, int key_num) const = 0; |
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278 |
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279 virtual void |
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280 set_field_by_number (mwIndex index, int key_num, mxArray *val) = 0; |
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281 |
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282 virtual int get_number_of_fields (void) const = 0; |
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283 |
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284 virtual const char * get_field_name_by_number (int key_num) const = 0; |
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285 |
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286 virtual int get_field_number (const char *key) const = 0; |
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287 |
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288 virtual int get_string (char *buf, mwSize buflen) const = 0; |
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289 |
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290 virtual char * array_to_string (void) const = 0; |
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291 |
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292 virtual mwIndex calc_single_subscript (mwSize nsubs, mwIndex *subs) const = 0; |
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293 |
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294 virtual size_t get_element_size (void) const = 0; |
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295 |
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296 virtual bool mutation_needed (void) const { return false; } |
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297 |
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298 virtual mxArray * mutate (void) const { return nullptr; } |
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299 |
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300 virtual octave_value as_octave_value (void) const = 0; |
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301 |
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302 protected: |
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303 |
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304 mxArray_base (const mxArray_base&) { } |
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305 |
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306 OCTAVE_NORETURN void err_invalid_type (void) const |
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307 { |
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308 error ("invalid type for operation"); |
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309 } |
6686 | 310 }; |
311 | |
312 // The main interface class. The representation can be based on an | |
313 // octave_value object or a separate object that tries to reproduce | |
314 // the semantics of mxArray objects in Matlab more directly. | |
315 | |
316 class mxArray | |
317 { | |
318 public: | |
319 | |
320 mxArray (const octave_value& ov); | |
321 | |
322 mxArray (mxClassID id, mwSize ndims, const mwSize *dims, | |
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323 mxComplexity flag = mxREAL, bool init = true); |
6686 | 324 |
325 mxArray (mxClassID id, const dim_vector& dv, mxComplexity flag = mxREAL); | |
326 | |
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327 mxArray (mxClassID id, mwSize m, mwSize n, |
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328 mxComplexity flag = mxREAL, bool init = true); |
6686 | 329 |
330 mxArray (mxClassID id, double val); | |
331 | |
332 mxArray (mxClassID id, mxLogical val); | |
333 | |
334 mxArray (const char *str); | |
335 | |
6806 | 336 mxArray (mwSize m, const char **str); |
6686 | 337 |
6806 | 338 mxArray (mxClassID id, mwSize m, mwSize n, mwSize nzmax, |
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339 mxComplexity flag = mxREAL); |
6686 | 340 |
341 mxArray (mwSize ndims, const mwSize *dims, int num_keys, const char **keys); | |
342 | |
343 mxArray (const dim_vector& dv, int num_keys, const char **keys); | |
344 | |
345 mxArray (mwSize m, mwSize n, int num_keys, const char **keys); | |
346 | |
347 mxArray (mwSize ndims, const mwSize *dims); | |
348 | |
349 mxArray (const dim_vector& dv); | |
350 | |
351 mxArray (mwSize m, mwSize n); | |
352 | |
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353 mxArray * dup (void) const |
6686 | 354 { |
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355 mxArray *retval = rep->as_mxArray (); |
6686 | 356 |
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357 if (retval) |
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358 retval->set_name (name); |
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359 else |
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360 { |
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361 mxArray_base *new_rep = rep->dup (); |
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362 |
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363 retval = new mxArray (new_rep, name); |
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364 } |
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365 |
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366 return retval; |
6686 | 367 } |
368 | |
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369 // No copying! |
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370 |
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371 mxArray (const mxArray&) = delete; |
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372 |
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373 mxArray& operator = (const mxArray&) = delete; |
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374 |
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375 ~mxArray (void); |
6686 | 376 |
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377 bool is_octave_value (void) const { return rep->is_octave_value (); } |
6686 | 378 |
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379 int iscell (void) const { return rep->iscell (); } |
6686 | 380 |
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381 int is_char (void) const { return rep->is_char (); } |
6686 | 382 |
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383 int is_class (const char *name_arg) const { return rep->is_class (name_arg); } |
6686 | 384 |
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385 int is_complex (void) const { return rep->is_complex (); } |
6686 | 386 |
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387 int is_double (void) const { return rep->is_double (); } |
6686 | 388 |
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389 int is_function_handle (void) const { return rep->is_function_handle (); } |
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390 |
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391 int is_int16 (void) const { return rep->is_int16 (); } |
6686 | 392 |
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393 int is_int32 (void) const { return rep->is_int32 (); } |
6686 | 394 |
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395 int is_int64 (void) const { return rep->is_int64 (); } |
6686 | 396 |
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397 int is_int8 (void) const { return rep->is_int8 (); } |
6686 | 398 |
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399 int is_logical (void) const { return rep->is_logical (); } |
6686 | 400 |
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401 int is_numeric (void) const { return rep->is_numeric (); } |
6686 | 402 |
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403 int is_single (void) const { return rep->is_single (); } |
6686 | 404 |
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405 int is_sparse (void) const { return rep->is_sparse (); } |
6686 | 406 |
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407 int is_struct (void) const { return rep->is_struct (); } |
6686 | 408 |
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409 int is_uint16 (void) const { return rep->is_uint16 (); } |
6686 | 410 |
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411 int is_uint32 (void) const { return rep->is_uint32 (); } |
6686 | 412 |
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413 int is_uint64 (void) const { return rep->is_uint64 (); } |
6686 | 414 |
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415 int is_uint8 (void) const { return rep->is_uint8 (); } |
6686 | 416 |
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417 int is_logical_scalar (void) const { return rep->is_logical_scalar (); } |
6686 | 418 |
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419 int is_logical_scalar_true (void) const |
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420 { return rep->is_logical_scalar_true (); } |
6686 | 421 |
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422 mwSize get_m (void) const { return rep->get_m (); } |
6686 | 423 |
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424 mwSize get_n (void) const { return rep->get_n (); } |
6686 | 425 |
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426 mwSize * get_dimensions (void) const { return rep->get_dimensions (); } |
6686 | 427 |
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428 mwSize get_number_of_dimensions (void) const |
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429 { return rep->get_number_of_dimensions (); } |
6686 | 430 |
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431 void set_m (mwSize m) { DO_VOID_MUTABLE_METHOD (set_m (m)); } |
6686 | 432 |
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433 void set_n (mwSize n) { DO_VOID_MUTABLE_METHOD (set_n (n)); } |
6686 | 434 |
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435 int set_dimensions (mwSize *dims_arg, mwSize ndims_arg) |
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436 { DO_MUTABLE_METHOD (int, set_dimensions (dims_arg, ndims_arg)); } |
6686 | 437 |
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438 mwSize get_number_of_elements (void) const |
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439 { return rep->get_number_of_elements (); } |
6686 | 440 |
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441 int isempty (void) const { return get_number_of_elements () == 0; } |
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443 bool is_scalar (void) const { return rep->is_scalar (); } |
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444 |
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445 const char * get_name (void) const { return name; } |
6686 | 446 |
447 void set_name (const char *name_arg); | |
448 | |
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449 mxClassID get_class_id (void) const { return rep->get_class_id (); } |
6686 | 450 |
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451 const char * get_class_name (void) const { return rep->get_class_name (); } |
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452 |
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453 mxArray * get_property (mwIndex idx, const char *pname) const |
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454 { return rep->get_property (idx, pname); } |
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455 |
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456 void set_property (mwIndex idx, const char *pname, const mxArray *pval) |
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457 { rep->set_property (idx, pname, pval); } |
6686 | 458 |
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459 void set_class_name (const char *name_arg) |
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460 { DO_VOID_MUTABLE_METHOD (set_class_name (name_arg)); } |
6686 | 461 |
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462 mxArray * get_cell (mwIndex idx) const |
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463 { DO_MUTABLE_METHOD (mxArray *, get_cell (idx)); } |
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465 void set_cell (mwIndex idx, mxArray *val) |
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466 { DO_VOID_MUTABLE_METHOD (set_cell (idx, val)); } |
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468 double get_scalar (void) const { return rep->get_scalar (); } |
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470 void * get_data (void) const { DO_MUTABLE_METHOD (void *, get_data ()); } |
6686 | 471 |
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472 void * get_imag_data (void) const |
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473 { DO_MUTABLE_METHOD (void *, get_imag_data ()); } |
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475 void set_data (void *pr) { DO_VOID_MUTABLE_METHOD (set_data (pr)); } |
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477 void set_imag_data (void *pi) { DO_VOID_MUTABLE_METHOD (set_imag_data (pi)); } |
6686 | 478 |
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479 mwIndex * get_ir (void) const { DO_MUTABLE_METHOD (mwIndex *, get_ir ()); } |
6686 | 480 |
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481 mwIndex * get_jc (void) const { DO_MUTABLE_METHOD (mwIndex *, get_jc ()); } |
6686 | 482 |
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483 mwSize get_nzmax (void) const { return rep->get_nzmax (); } |
6686 | 484 |
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485 void set_ir (mwIndex *ir) { DO_VOID_MUTABLE_METHOD (set_ir (ir)); } |
6686 | 486 |
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487 void set_jc (mwIndex *jc) { DO_VOID_MUTABLE_METHOD (set_jc (jc)); } |
6686 | 488 |
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489 void set_nzmax (mwSize nzmax) { DO_VOID_MUTABLE_METHOD (set_nzmax (nzmax)); } |
6686 | 490 |
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491 int add_field (const char *key) { DO_MUTABLE_METHOD (int, add_field (key)); } |
6686 | 492 |
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493 void remove_field (int key_num) |
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494 { DO_VOID_MUTABLE_METHOD (remove_field (key_num)); } |
6686 | 495 |
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496 mxArray * get_field_by_number (mwIndex index, int key_num) const |
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497 { DO_MUTABLE_METHOD (mxArray *, get_field_by_number (index, key_num)); } |
6686 | 498 |
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499 void set_field_by_number (mwIndex index, int key_num, mxArray *val) |
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500 { DO_VOID_MUTABLE_METHOD (set_field_by_number (index, key_num, val)); } |
6686 | 501 |
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502 int get_number_of_fields (void) const { return rep->get_number_of_fields (); } |
6686 | 503 |
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504 const char * get_field_name_by_number (int key_num) const |
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505 { DO_MUTABLE_METHOD (const char*, get_field_name_by_number (key_num)); } |
6686 | 506 |
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507 int get_field_number (const char *key) const |
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508 { DO_MUTABLE_METHOD (int, get_field_number (key)); } |
6686 | 509 |
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510 int get_string (char *buf, mwSize buflen) const |
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511 { return rep->get_string (buf, buflen); } |
6686 | 512 |
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513 char * array_to_string (void) const { return rep->array_to_string (); } |
6686 | 514 |
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515 mwIndex calc_single_subscript (mwSize nsubs, mwIndex *subs) const |
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516 { return rep->calc_single_subscript (nsubs, subs); } |
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518 size_t get_element_size (void) const { return rep->get_element_size (); } |
6686 | 519 |
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520 bool mutation_needed (void) const { return rep->mutation_needed (); } |
6686 | 521 |
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522 mxArray * mutate (void) const { return rep->mutate (); } |
6686 | 523 |
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524 static void * malloc (size_t n); |
6686 | 525 |
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526 static void * calloc (size_t n, size_t t); |
6686 | 527 |
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528 static char * strsave (const char *str) |
6686 | 529 { |
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530 char *retval = nullptr; |
6686 | 531 |
532 if (str) | |
533 { | |
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534 mwSize sz = sizeof (mxChar) * (strlen (str) + 1); |
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535 |
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536 retval = static_cast<char *> (mxArray::malloc (sz)); |
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537 |
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538 if (retval) |
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539 strcpy (retval, str); |
6686 | 540 } |
541 | |
542 return retval; | |
543 } | |
544 | |
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545 static octave_value |
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546 as_octave_value (const mxArray *ptr, bool null_is_empty = true); |
6686 | 547 |
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548 octave_value as_octave_value (void) const; |
6686 | 549 |
550 private: | |
551 | |
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552 mutable mxArray_base *rep; |
6686 | 553 |
554 char *name; | |
555 | |
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556 mxArray (mxArray_base *r, const char *n) |
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557 : rep (r), name (mxArray::strsave (n)) { } |
6686 | 558 |
559 void maybe_mutate (void) const; | |
560 }; | |
561 | |
562 #undef DO_MUTABLE_METHOD | |
563 #undef DO_VOID_MUTABLE_METHOD | |
564 | |
565 #endif | |
566 #endif |