Mercurial > hg > early-roguelike

annotate rogue5/list.c @ 233:0990adf580ee

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Declare some function arguments as const. Some functions, mostly in fight.c, declared variables as pointers to const char but passed them to functions that took pointers to ordinary char. The strings did not actually get modified, so adding 'const' to the function definitions removed the warnings.
author John "Elwin" Edwards
date Sun, 06 Mar 2016 19:32:47 -0500
parents f502bf60e6e4
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
33
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
1 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
2 * Functions for dealing with linked lists of goodies
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
3 *
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
4 * @(#)list.c 4.12 (Berkeley) 02/05/99
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
5 *
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
6 * Rogue: Exploring the Dungeons of Doom
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
7 * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
8 * All rights reserved.
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
9 *
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
10 * See the file LICENSE.TXT for full copyright and licensing information.
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
11 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
12
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
13 #include <stdlib.h>
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
14 #include <curses.h>
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
15 #include "rogue.h"
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
16
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
17 #ifdef MASTER
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
18 int total = 0; /* total dynamic memory bytes */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
19 #endif
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
20
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
21 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
22 * detach:
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
23 * takes an item out of whatever linked list it might be in
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
24 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
25
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
26 void
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
27 _detach(THING **list, THING *item)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
28 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
29 if (*list == item)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
30 *list = next(item);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
31 if (prev(item) != NULL)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
32 item->l_prev->l_next = next(item);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
33 if (next(item) != NULL)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
34 item->l_next->l_prev = prev(item);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
35 item->l_next = NULL;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
36 item->l_prev = NULL;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
37 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
38
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
39 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
40 * _attach:
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
41 * add an item to the head of a list
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
42 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
43
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
44 void
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
45 _attach(THING **list, THING *item)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
46 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
47 if (*list != NULL)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
48 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
49 item->l_next = *list;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
50 (*list)->l_prev = item;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
51 item->l_prev = NULL;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
52 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
53 else
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
54 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
55 item->l_next = NULL;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
56 item->l_prev = NULL;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
57 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
58 *list = item;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
59 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
60
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
61 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
62 * _free_list:
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
63 * Throw the whole blamed thing away
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
64 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
65
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
66 void
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
67 _free_list(THING **ptr)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
68 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
69 THING *item;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
70
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
71 while (*ptr != NULL)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
72 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
73 item = *ptr;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
74 *ptr = next(item);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
75 discard(item);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
76 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
77 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
78
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
79 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
80 * discard:
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
81 * Free up an item
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
82 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
83
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
84 void
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
85 discard(THING *item)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
86 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
87 #ifdef MASTER
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
88 total--;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
89 #endif
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
90 free(item);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
91 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
92
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
93 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
94 * new_item
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
95 * Get a new item with a specified size
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
96 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
97 THING *
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
98 new_item(void)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
99 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
100 THING *item;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
101
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
102 if ((item = calloc(1, sizeof *item)) == NULL) {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
103 #ifdef MASTER
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
104 msg("ran out of memory after %d items", total);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
105 #endif
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
106 return NULL;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
107 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
108
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
109 #ifdef MASTER
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff