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1 | /* -*-c-*- |
2 | * |
3 | * $Id: field.c,v 1.1 2001/05/07 17:30:13 mdw Exp $ |
4 | * |
5 | * [Abstract field operations * |
6 | * (c) 2001 Straylight/Edgeware |
7 | */ |
8 | |
9 | /*----- Licensing notice --------------------------------------------------* |
10 | * |
11 | * This file is part of Catacomb. |
12 | * |
13 | * Catacomb is free software; you can redistribute it and/or modify |
14 | * it under the terms of the GNU Library General Public License as |
15 | * published by the Free Software Foundation; either version 2 of the |
16 | * License, or (at your option) any later version. |
17 | * |
18 | * Catacomb is distributed in the hope that it will be useful, |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
21 | * GNU Library General Public License for more details. |
22 | * |
23 | * You should have received a copy of the GNU Library General Public |
24 | * License along with Catacomb; if not, write to the Free |
25 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
26 | * MA 02111-1307, USA. |
27 | */ |
28 | |
29 | /*----- Revision history --------------------------------------------------* |
30 | * |
31 | * $Log: field.c,v $ |
32 | * Revision 1.1 2001/05/07 17:30:13 mdw |
33 | * Add an internal-representation no-op function. |
34 | * |
35 | */ |
36 | |
37 | /*----- Header files ------------------------------------------------------*/ |
38 | |
39 | #include "field.h" |
40 | #include "mp.h" |
41 | |
42 | /*----- Main code ---------------------------------------------------------*/ |
43 | |
44 | /* --- @field_id@ --- * |
45 | * |
46 | * Arguments: @field *f@ = pointer to a field |
47 | * @mp *d@ = a destination element |
48 | * @mp *x@ = a source element |
49 | * |
50 | * Returns: The result element. |
51 | * |
52 | * Use: An identity operation which can be used if your field has no |
53 | * internal representation. |
54 | */ |
55 | |
56 | mp *field_id(field *f, mp *d, mp *x) |
57 | { |
58 | x = MP_COPY(x); |
59 | if (d) MP_DROP(d); |
60 | return (x); |
61 | } |
62 | |
63 | /*----- That's all, folks -------------------------------------------------*/ |