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[project @ 1996-01-12 11:03:26 by jwe] Initial revision
author jwe
date Fri, 12 Jan 1996 11:03:26 +0000
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children effa9400766f
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1738:bb9d00aa55fb 1739:bbfca89cb1cd
1 // pt-mat.h -*- C++ -*-
2 /*
3
4 Copyright (C) 1992, 1993, 1994, 1995 John W. Eaton
5
6 This file is part of Octave.
7
8 Octave is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 2, or (at your option) any
11 later version.
12
13 Octave is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with Octave; see the file COPYING. If not, write to the Free
20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21
22 */
23
24 #if !defined (octave_tree_mat_h)
25 #define octave_tree_mat_h 1
26
27 #if defined (__GNUG__)
28 #pragma interface
29 #endif
30
31 class ostream;
32
33 class tree_constant;
34 class tree_return_list;
35
36 #include "pt-exp.h"
37
38 // General matrices. This allows us to construct matrices from
39 // other matrices, variables, and functions.
40
41 class
42 tree_matrix : public tree_expression
43 {
44 public:
45 enum dir
46 {
47 md_none,
48 md_right,
49 md_down,
50 };
51
52 tree_matrix (void)
53 : tree_expression (), direction (tree_matrix::md_none),
54 element (0), next (0) { }
55
56 tree_matrix (tree_expression *e, tree_matrix::dir d)
57 : tree_expression (), direction (d), element (e), next (0) { }
58
59 ~tree_matrix (void);
60
61 int is_matrix_constant (void) const;
62
63 tree_matrix *chain (tree_expression *e, tree_matrix::dir d);
64 tree_matrix *reverse (void);
65 int length (void);
66
67 tree_return_list *to_return_list (void);
68
69 tree_constant eval (int print);
70
71 void print_code (ostream& os);
72
73 private:
74 tree_matrix::dir direction; // Direction from the previous element.
75 tree_expression *element;
76 tree_matrix *next;
77 };
78
79 #endif
80
81 /*
82 ;;; Local Variables: ***
83 ;;; mode: C++ ***
84 ;;; page-delimiter: "^/\\*" ***
85 ;;; End: ***
86 */