Mercurial > octave
annotate libinterp/octave-value/ov-fcn-handle.h @ 28426:9a3deb17b4ea stable
use shared_ptr for stack frames in call stack and for accesss and static links
* call-stack.h, call-stack.cc: Use std::shared_ptr<stack_frame>
instead of bare pointer for elements of call stack. Change all uses.
* stack-frame.h, stack-frame.cc (stack_frame::static_link,
stack_frame::access_link): Use std::shared_ptr<stack_frame>
instead of bare pointer. Change all uses.
(stack_frame::workspace): New function.
* ov-fcn-handle.h, ov-fcn-handle.cc
(octave_fcn_handle::m_closure_frames): Now a
std::shared_ptr<stack_frame> object instead of a list of copied stack
frames. Change all uses.
(octave_fcn_handle::push_closure_context): Simply store
std::shared_ptr to current stack frame.
(octave_fcn_handle::workspace): Call stack_frame::workspace to get
workspace info when we have closure frames.
author | John W. Eaton <jwe@octave.org> |
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date | Sat, 25 Apr 2020 13:17:11 -0400 |
parents | 087bccd1ab49 |
children | 5bfa8e018704 |
rev | line source |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 2003-2020 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 //////////////////////////////////////////////////////////////////////// |
4343 | 25 |
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26 #if ! defined (octave_ov_fcn_handle_h) |
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27 #define octave_ov_fcn_handle_h 1 |
4343 | 28 |
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29 #include "octave-config.h" |
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30 |
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31 #include <iosfwd> |
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32 #include <list> |
4343 | 33 #include <string> |
34 | |
35 #include "ov-base.h" | |
36 #include "ov-fcn.h" | |
4654 | 37 #include "ov-typeinfo.h" |
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38 #include "symscope.h" |
4343 | 39 |
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40 namespace octave |
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41 { |
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42 class interpreter; |
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43 class stack_frame; |
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44 class tree_evaluator; |
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45 } |
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46 |
4343 | 47 // Function handles. |
48 | |
4925 | 49 class |
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50 OCTINTERP_API |
4925 | 51 octave_fcn_handle : public octave_base_value |
4654 | 52 { |
53 public: | |
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54 |
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55 static const std::string anonymous; |
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56 |
4930 | 57 octave_fcn_handle (void) |
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58 : m_fcn (), m_obj (), m_name (), m_scope (), m_is_nested (false), |
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59 m_closure_frames (), m_dispatch_class () |
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60 { } |
5007 | 61 |
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62 octave_fcn_handle (const octave::symbol_scope& scope, const std::string& n); |
4654 | 63 |
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64 octave_fcn_handle (const octave::symbol_scope& scope, |
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65 const octave_value& f, |
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66 const std::string& n = anonymous); |
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67 |
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68 octave_fcn_handle (const octave_value& f, |
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69 const std::string& n = anonymous); |
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70 |
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71 octave_fcn_handle (const octave_fcn_handle& fh) = default; |
4967 | 72 |
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73 ~octave_fcn_handle (void) = default; |
4654 | 74 |
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75 octave_base_value * clone (void) const |
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76 { return new octave_fcn_handle (*this); } |
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77 octave_base_value * empty_clone (void) const |
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78 { return new octave_fcn_handle (); } |
4967 | 79 |
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80 // We don't need to override all three forms of subsref. The using |
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81 // declaration will avoid warnings about partially-overloaded virtual |
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82 // functions. |
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83 using octave_base_value::subsref; |
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84 |
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85 octave_value subsref (const std::string& type, |
10313 | 86 const std::list<octave_value_list>& idx) |
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87 { |
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88 octave_value_list tmp = subsref (type, idx, 1); |
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89 return tmp.length () > 0 ? tmp(0) : octave_value (); |
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90 } |
4924 | 91 |
92 octave_value_list subsref (const std::string& type, | |
10313 | 93 const std::list<octave_value_list>& idx, |
94 int nargout); | |
4924 | 95 |
4925 | 96 bool is_defined (void) const { return true; } |
4654 | 97 |
98 bool is_function_handle (void) const { return true; } | |
99 | |
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100 bool is_anonymous (void) const { return m_name == anonymous; } |
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101 |
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102 bool is_nested (void) const { return m_is_nested; } |
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103 |
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104 dim_vector dims (void) const; |
5654 | 105 |
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106 // FIXME: These must go away. They don't do the right thing for |
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107 // scoping or overloads. |
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108 octave_function * function_value (bool = false); |
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109 octave_user_function * user_function_value (bool = false); |
6625 | 110 |
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111 octave_fcn_handle * fcn_handle_value (bool = false) { return this; } |
4654 | 112 |
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113 octave_value fcn_val (void) const { return m_fcn; } |
5007 | 114 |
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115 std::string fcn_name (void) const { return m_name; } |
4930 | 116 |
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117 void push_closure_context (octave::tree_evaluator& tw); |
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118 |
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119 octave_value workspace (void) const; |
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120 |
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121 void set_dispatch_class (const std::string& class_name) |
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122 { |
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123 m_dispatch_class = class_name; |
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124 } |
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125 |
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126 std::string get_dispatch_class (void) const { return m_dispatch_class; } |
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127 |
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128 bool is_equal_to (const octave_fcn_handle&) const; |
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129 |
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130 octave_value convert_to_str_internal (bool pad, bool force, char type) const; |
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131 |
6974 | 132 bool save_ascii (std::ostream& os); |
4988 | 133 |
134 bool load_ascii (std::istream& is); | |
135 | |
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136 bool save_binary (std::ostream& os, bool save_as_floats); |
4988 | 137 |
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138 bool load_binary (std::istream& is, bool swap, |
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139 octave::mach_info::float_format fmt); |
4988 | 140 |
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141 bool save_hdf5 (octave_hdf5_id loc_id, const char *name, bool save_as_floats); |
4988 | 142 |
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John W. Eaton <jwe@octave.org> and Mike Miller <mtmiller@ieee.org>
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143 bool load_hdf5 (octave_hdf5_id loc_id, const char *name); |
4988 | 144 |
18416
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Michael Goffioul <michael.goffioul@gmail.com>
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145 void print (std::ostream& os, bool pr_as_read_syntax = false); |
4654 | 146 |
147 void print_raw (std::ostream& os, bool pr_as_read_syntax = false) const; | |
148 | |
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149 // Simple function handles are printed without a newline. |
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150 bool print_as_scalar (void) const { return m_name != anonymous; } |
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151 |
4654 | 152 private: |
4343 | 153 |
23433
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maint: Use convention 'int& x' for naming references.
Rik <rik@octave.org>
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154 bool set_fcn (const std::string& octaveroot, const std::string& fpath); |
6625 | 155 |
4612 | 156 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA |
4925 | 157 |
4933 | 158 protected: |
4930 | 159 |
26847
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John W. Eaton <jwe@octave.org>
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160 // The function we are handling (this should be valid for handles to |
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161 // anonymous functions and some other special cases). Otherwise, we |
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162 // perform dynamic lookup based on the name of the function we are |
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allow @obj.meth to work (bug #51709)
John W. Eaton <jwe@octave.org>
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163 // handling and the scope where the function handle object was created. |
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164 octave_value m_fcn; |
4925 | 165 |
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166 // If defined, this is the classdef object corresponding to the |
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167 // classdef method we are handling. |
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168 octave_value m_obj; |
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169 |
26847
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170 // The function we would find without considering argument types. We |
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171 // cache this value so that the function_value and user_function_value |
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172 // methods may continue to work. |
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173 octave_value m_generic_fcn; |
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174 |
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175 // The name of the handle, not including the "@". |
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176 std::string m_name; |
9450
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Jaroslav Hajek <highegg@gmail.com>
parents:
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177 |
26847
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178 // The scope where this object was defined. |
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179 octave::symbol_scope m_scope; |
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180 |
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John W. Eaton <jwe@octave.org>
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181 // TRUE means this is a handle to a nested function. |
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182 bool m_is_nested; |
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183 |
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184 // Saved stack frames for handles to nested functions. This allows us |
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185 // to access non-locals and other context info when calling nested |
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parents:
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186 // functions indirectly through handles. |
28426
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use shared_ptr for stack frames in call stack and for accesss and static links
John W. Eaton <jwe@octave.org>
parents:
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187 std::shared_ptr<octave::stack_frame> m_closure_frames; |
26825
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188 |
26966
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John W. Eaton <jwe@octave.org>
parents:
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189 // The name of the class in which this handle was created, if any. |
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190 // Used to determine access permission when the referenced function is |
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191 // called. |
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192 std::string m_dispatch_class; |
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193 |
24108
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John W. Eaton <jwe@octave.org>
parents:
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194 bool parse_anon_fcn_handle (const std::string& fcn_text); |
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195 |
23502
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eliminate remaining do_multi_index_op methods
John W. Eaton <jwe@octave.org>
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196 virtual octave_value_list call (int nargout, const octave_value_list& args); |
4343 | 197 }; |
198 | |
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199 namespace octave |
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200 { |
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201 extern octave_value |
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202 make_fcn_handle (interpreter& interp, const std::string& name); |
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203 } |
4343 | 204 |
205 #endif |