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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_base_scalar_h) |
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24 #define octave_base_scalar_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 <iostream> |
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33 #include <string> |
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34 |
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35 #include "lo-mappers.h" |
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36 #include "lo-utils.h" |
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37 #include "oct-alloc.h" |
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38 #include "str-vec.h" |
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39 |
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40 #include "ov-base.h" |
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41 #include "ov-typeinfo.h" |
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42 |
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43 // Real scalar values. |
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44 |
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45 template <class ST> |
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46 class |
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47 octave_base_scalar : public octave_base_value |
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48 { |
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49 public: |
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50 |
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51 octave_base_scalar (void) |
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52 : octave_base_value () { } |
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53 |
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54 octave_base_scalar (const ST& s) |
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55 : octave_base_value (), scalar (s) { } |
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56 |
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57 octave_base_scalar (const octave_base_scalar& s) |
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58 : octave_base_value (), scalar (s.scalar) { } |
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59 |
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60 ~octave_base_scalar (void) { } |
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61 |
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62 octave_value subsref (const std::string& type, |
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63 const std::list<octave_value_list>& idx); |
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64 |
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65 octave_value_list subsref (const std::string&, |
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66 const std::list<octave_value_list>&, int) |
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67 { |
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68 panic_impossible (); |
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69 return octave_value_list (); |
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70 } |
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71 |
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72 octave_value subsasgn (const std::string& type, |
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73 const std::list<octave_value_list>& idx, |
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74 const octave_value& rhs); |
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75 |
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76 bool is_constant (void) const { return true; } |
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77 |
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78 bool is_defined (void) const { return true; } |
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79 |
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80 dim_vector dims (void) const { static dim_vector dv (1, 1); return dv; } |
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81 |
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82 octave_value all (int = 0) const { return (scalar != 0.0); } |
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83 |
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84 octave_value any (int = 0) const { return (scalar != 0.0); } |
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85 |
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86 bool is_scalar_type (void) const { return true; } |
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87 |
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88 bool is_numeric_type (void) const { return true; } |
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89 |
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90 bool is_true (void) const { return (scalar != 0.0); } |
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91 |
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92 void print (std::ostream& os, bool pr_as_read_syntax = false) const; |
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93 |
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94 void print_raw (std::ostream& os, bool pr_as_read_syntax = false) const; |
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95 |
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96 bool print_name_tag (std::ostream& os, const std::string& name) const; |
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97 |
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98 protected: |
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99 |
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100 // The value of this scalar. |
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101 ST scalar; |
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102 }; |
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103 |
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104 #endif |
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105 |
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106 /* |
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107 ;;; Local Variables: *** |
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108 ;;; mode: C++ *** |
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109 ;;; End: *** |
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110 */ |
