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