]>
Commit | Line | Data |
---|---|---|
76c3243f | 1 | /* |
2 | ** Splint - annotation-assisted static program checker | |
3 | ** Copyright (C) 1994-2002 University of Virginia, | |
4 | ** Massachusetts Institute of Technology | |
5 | ** | |
6 | ** This program is free software; you can redistribute it and/or modify it | |
7 | ** under the terms of the GNU General Public License as published by the | |
8 | ** Free Software Foundation; either version 2 of the License, or (at your | |
9 | ** option) any later version. | |
10 | ** | |
11 | ** This program is distributed in the hope that it will be useful, but | |
12 | ** WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | ** General Public License for more details. | |
15 | ** | |
16 | ** The GNU General Public License is available from http://www.gnu.org/ or | |
17 | ** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
18 | ** MA 02111-1307, USA. | |
19 | ** | |
20 | ** For information on splint: info@splint.org | |
21 | ** To report a bug: splint-bug@splint.org | |
22 | ** For more information: http://www.splint.org | |
23 | */ | |
24 | /* | |
25 | ** pointers.c | |
26 | */ | |
27 | ||
28 | # include "splintMacros.nf" | |
29 | # include "basic.h" | |
30 | ||
31 | pointers pointers_create (lltok tok) | |
32 | { | |
33 | return pointers_createMods (tok, qualList_undefined); | |
34 | } | |
35 | ||
36 | pointers pointers_createMods (/*@unused@*/ lltok tok, qualList quals) | |
37 | { | |
38 | pointers res = (pointers) dmalloc (sizeof (*res)); | |
39 | ||
40 | res->quals = quals; | |
41 | res->rest = pointers_undefined; | |
42 | ||
43 | return res; | |
44 | } | |
45 | ||
46 | pointers pointers_createMt (mttok tok) | |
47 | { | |
48 | return pointers_createModsMt (tok, qualList_undefined); | |
49 | } | |
50 | ||
51 | pointers pointers_createLt (ltoken tok) | |
52 | { | |
53 | return pointers_createModsLt (tok, qualList_undefined); | |
54 | } | |
55 | ||
56 | pointers pointers_createModsMt (/*@unused@*/ mttok tok, qualList quals) | |
57 | { | |
58 | pointers res = (pointers) dmalloc (sizeof (*res)); | |
59 | ||
60 | res->quals = quals; | |
61 | res->rest = pointers_undefined; | |
62 | ||
63 | return res; | |
64 | } | |
65 | ||
66 | pointers pointers_createModsLt (/*@unused@*/ ltoken tok, qualList quals) | |
67 | { | |
68 | pointers res = (pointers) dmalloc (sizeof (*res)); | |
69 | ||
70 | res->quals = quals; | |
71 | res->rest = pointers_undefined; | |
72 | ||
73 | return res; | |
74 | } | |
75 | ||
76 | pointers pointers_extend (pointers p1, pointers p2) | |
77 | { | |
78 | llassert (pointers_isDefined (p1)); | |
79 | llassert (pointers_isUndefined (p1->rest)); | |
80 | p1->rest = p2; | |
81 | return p1; | |
82 | } | |
83 | ||
84 | pointers pointers_getRest (pointers p) | |
85 | { | |
86 | llassert (pointers_isDefined (p)); | |
87 | return p->rest; | |
88 | } | |
89 | ||
90 | cstring pointers_unparse (pointers p) | |
91 | { | |
92 | if (pointers_isDefined (p)) | |
93 | { | |
94 | if (qualList_isDefined (p->quals)) | |
95 | { | |
96 | if (pointers_isDefined (p->rest)) | |
97 | { | |
98 | return (message ("* %q %q", qualList_unparse (p->quals), pointers_unparse (p->rest))); | |
99 | } | |
100 | else | |
101 | { | |
102 | return (message ("* %q", qualList_unparse (p->quals))); | |
103 | } | |
104 | } | |
105 | else | |
106 | { | |
107 | if (pointers_isDefined (p->rest)) | |
108 | { | |
109 | return (message ("* %q", pointers_unparse (p->rest))); | |
110 | } | |
111 | else | |
112 | { | |
113 | return (cstring_makeLiteral ("*")); | |
114 | } | |
115 | } | |
116 | } | |
117 | else | |
118 | { | |
119 | return cstring_undefined; | |
120 | } | |
121 | } | |
122 | ||
123 | int pointers_depth (pointers p) | |
124 | { | |
125 | if (pointers_isUndefined (p)) | |
126 | { | |
127 | return 0; | |
128 | } | |
129 | else | |
130 | { | |
131 | return 1 + pointers_depth (p->rest); | |
132 | } | |
133 | } | |
134 | ||
135 | void pointers_free (/*@only@*/ pointers p) | |
136 | { | |
137 | if (pointers_isDefined (p)) | |
138 | { | |
139 | qualList_free (p->quals); | |
140 | pointers_free (p->rest); | |
141 | sfree (p); | |
142 | } | |
143 | } |