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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if !defined (octave_builtin_h) |
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24 #define octave_builtin_h 1 |
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25 |
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26 #if defined (__GNUG__) && defined (USE_PRAGMA_INTERFACE_IMPLEMENTATION) |
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27 #pragma interface |
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28 #endif |
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29 |
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30 #include <cstdlib> |
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31 |
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32 #include <string> |
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33 |
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34 #include "ov-fcn.h" |
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35 #include "ov-typeinfo.h" |
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36 |
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37 class octave_value; |
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38 class octave_value_list; |
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39 |
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40 // Builtin functions. |
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41 |
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42 class |
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43 octave_builtin : public octave_function |
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44 { |
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45 public: |
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46 |
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47 octave_builtin (void) { abort (); } |
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48 |
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49 typedef octave_value_list (*fcn) (const octave_value_list&, int); |
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50 |
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51 octave_builtin (fcn ff, const std::string& nm = std::string (), |
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52 const std::string& ds = std::string ()) |
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53 : octave_function (nm, ds), f (ff) { } |
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54 |
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55 ~octave_builtin (void) { } |
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56 |
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57 octave_value subsref (const std::string& type, |
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58 const std::list<octave_value_list>& idx) |
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59 { |
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60 panic_impossible (); |
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61 return octave_value (); |
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62 } |
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63 |
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64 octave_value_list subsref (const std::string& type, |
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65 const std::list<octave_value_list>& idx, |
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66 int nargout); |
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67 |
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68 octave_function *function_value (bool) { return this; } |
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69 |
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70 bool is_builtin_function (void) const { return true; } |
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71 |
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72 octave_value_list |
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73 do_multi_index_op (int nargout, const octave_value_list& args); |
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74 |
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75 protected: |
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76 |
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77 // A pointer to the actual function. |
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78 fcn f; |
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79 |
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80 private: |
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81 |
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82 octave_builtin (const octave_builtin& m); |
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83 |
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84 DECLARE_OCTAVE_ALLOCATOR |
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85 |
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86 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA |
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87 }; |
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88 |
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89 #endif |
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90 |
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91 /* |
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92 ;;; Local Variables: *** |
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93 ;;; mode: C++ *** |
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94 ;;; End: *** |
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95 */ |
