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1 | /* -*-c-*- |
2 | * |
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3 | * $Id: set.h,v 1.2 1997/08/04 10:24:25 mdw Exp $ |
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4 | * |
5 | * Management of sets (for the use of the class expression handler) |
6 | * |
7 | * (c) 1997 EBI |
8 | */ |
9 | |
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10 | /*----- Licensing notice --------------------------------------------------* |
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11 | * |
12 | * This file is part of `become' |
13 | * |
14 | * `Become' is free software; you can redistribute it and/or modify |
15 | * it under the terms of the GNU General Public License as published by |
16 | * the Free Software Foundation; either version 2 of the License, or |
17 | * (at your option) any later version. |
18 | * |
19 | * `Become' is distributed in the hope that it will be useful, |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
22 | * GNU General Public License for more details. |
23 | * |
24 | * You should have received a copy of the GNU General Public License |
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25 | * along with `become'; if not, write to the Free Software Foundation, |
26 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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27 | */ |
28 | |
29 | /*----- Revision history --------------------------------------------------* |
30 | * |
31 | * $Log: set.h,v $ |
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32 | * Revision 1.2 1997/08/04 10:24:25 mdw |
33 | * Sources placed under CVS control. |
34 | * |
35 | * Revision 1.1 1997/07/21 13:47:44 mdw |
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36 | * Initial revision |
37 | * |
38 | */ |
39 | |
40 | #ifndef SET_H |
41 | #define SET_H |
42 | |
43 | #ifdef __cplusplus |
44 | extern "C" { |
45 | #endif |
46 | |
47 | /*----- Required headers --------------------------------------------------*/ |
48 | |
49 | #ifndef SYM_H |
50 | # include "sym.h" |
51 | #endif |
52 | |
53 | /*----- Functions provided ------------------------------------------------*/ |
54 | |
55 | /* --- @set_subtract@ --- * |
56 | * |
57 | * Arguments: @sym_table *a@ = pointer to table @A@ |
58 | * @sym_table *b@ = pointer to table @B@ |
59 | * |
60 | * Returns: A symbol table containing all the elements in @A@ which don't |
61 | * appear in @B@. |
62 | * |
63 | * Use: Subtracts a symbol table from another symbol table. Assumes |
64 | * that there's no data following the actual @sym_base@ block |
65 | * for each item in the table. |
66 | */ |
67 | |
68 | extern sym_table *set_subtract(sym_table */*a*/, sym_table */*b*/); |
69 | |
70 | /* --- @set_intersect@ --- * |
71 | * |
72 | * Arguments: @sym_table *a@ = pointer to table @A@ |
73 | * @sym_table *b@ = pointer to table @B@ |
74 | * |
75 | * Returns: A symbol table containing all the elements in @A@ which also |
76 | * appear in @B@. |
77 | * |
78 | * Use: Constructs the intersection of two symbol tables. Assumes |
79 | * that there's no data following the actual @sym_base@ block |
80 | * for each item in the table. |
81 | */ |
82 | |
83 | sym_table *set_intersect(sym_table */*a*/, sym_table */*b*/); |
84 | |
85 | /* --- @set_union@ --- * |
86 | * |
87 | * Arguments: @sym_table *a@ = pointer to table @A@ |
88 | * @sym_table *b@ = pointer to table @B@ |
89 | * |
90 | * Returns: A symbol table containing all the elements in @A@ and those |
91 | * in @B@. |
92 | * |
93 | * Use: Constructs the union of two symbol tables. Assumes that |
94 | * there's no data following the actual @sym_base@ block for |
95 | * each item in the table. |
96 | */ |
97 | |
98 | sym_table *set_union(sym_table */*a*/, sym_table */*b*/); |
99 | |
100 | /* --- @set_copy@ --- * |
101 | * |
102 | * Arguments: @sym_table *a@ = pointer to table |
103 | * |
104 | * Returns: A copy of the symbol table. |
105 | * |
106 | * Use: Copies a symbol table. Same assumptions again... |
107 | */ |
108 | |
109 | sym_table *set_copy(sym_table */*a*/); |
110 | |
111 | /*----- That's all, folks -------------------------------------------------*/ |
112 | |
113 | #ifdef __cplusplus |
114 | } |
115 | #endif |
116 | |
117 | #endif |