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annotate src/oct-lvalue.h @ 11523:fd0a3ac60b0e
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| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Fri, 14 Jan 2011 05:47:45 -0500 |
| parents | f3b65e1ae355 |
| children | 12df7854fa7c |
| rev | line source |
|---|---|
| 2979 | 1 /* |
| 2 | |
| 11523 | 3 Copyright (C) 1996-2011 John W. Eaton |
| 2979 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 2979 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 2979 | 20 |
| 21 */ | |
| 22 | |
| 23 #if !defined (octave_lvalue_h) | |
| 24 #define octave_lvalue_h 1 | |
| 25 | |
| 26 class octave_value; | |
| 27 class octave_value_list; | |
| 28 | |
| 29 #include <string> | |
| 30 | |
| 31 #include "oct-obj.h" | |
| 3929 | 32 #include "pt-idx.h" |
| 2979 | 33 |
| 34 class | |
| 35 octave_lvalue | |
| 36 { | |
| 37 public: | |
| 38 | |
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39 octave_lvalue (octave_value *v = 0) |
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40 : val (v), type (), idx (), nel (1) |
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41 { } |
| 2979 | 42 |
| 43 octave_lvalue (const octave_lvalue& vr) | |
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44 : val (vr.val), type (vr.type), idx (vr.idx), nel (vr.nel) |
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changeset
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45 { |
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46 } |
| 2979 | 47 |
| 48 octave_lvalue& operator = (const octave_lvalue& vr) | |
| 49 { | |
| 50 if (this != &vr) | |
| 10313 | 51 { |
| 52 val = vr.val; | |
| 53 type = vr.type; | |
| 54 idx = vr.idx; | |
| 55 nel = vr.nel; | |
| 56 } | |
| 2979 | 57 |
| 58 return *this; | |
| 59 } | |
| 60 | |
| 61 ~octave_lvalue (void) { } | |
| 62 | |
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63 bool is_black_hole (void) const { return val == 0; } |
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64 |
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65 bool is_defined (void) const { return val && val->is_defined (); } |
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66 |
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67 bool is_undefined (void) const { return ! val || val->is_undefined (); } |
| 2979 | 68 |
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69 bool is_map (void) const { return val && val->is_map (); } |
| 2979 | 70 |
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71 void define (const octave_value& v) |
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72 { |
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parents:
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73 if (val) |
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parents:
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74 *val = v; |
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parents:
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75 } |
| 2979 | 76 |
| 77 void assign (octave_value::assign_op, const octave_value&); | |
| 78 | |
| 5846 | 79 void numel (octave_idx_type n) { nel = n; } |
| 80 | |
| 81 octave_idx_type numel (void) const { return nel; } | |
| 82 | |
| 4219 | 83 void set_index (const std::string& t, const std::list<octave_value_list>& i); |
| 2979 | 84 |
| 3933 | 85 void clear_index (void) { type = std::string (); idx.clear (); } |
| 2984 | 86 |
| 3203 | 87 void do_unary_op (octave_value::unary_op op); |
| 2979 | 88 |
| 5001 | 89 octave_value value (void); |
| 2979 | 90 |
| 4234 | 91 const octave_value *object (void) const { return val; } |
| 92 | |
| 2979 | 93 private: |
| 94 | |
| 95 octave_value *val; | |
| 96 | |
| 3933 | 97 std::string type; |
| 2979 | 98 |
| 4219 | 99 std::list<octave_value_list> idx; |
| 3929 | 100 |
| 5846 | 101 octave_idx_type nel; |
| 2979 | 102 }; |
| 103 | |
| 104 #endif |