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annotate rogue5/list.c @ 246:61283e71037c

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Rogue V5: don't limit the high score list to 1 on Windows. The Visual Studio project file failed to define ALLSCORES, causing the score file to be limited to one entry per UID. Since the UID is always set to 42 on Windows, only one entry could ever appear in the list.
author John "Elwin" Edwards
date Sun, 15 May 2016 19:04:46 -0400
parents f502bf60e6e4
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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33
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1 /*
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2 * Functions for dealing with linked lists of goodies
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3 *
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4 * @(#)list.c 4.12 (Berkeley) 02/05/99
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5 *
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6 * Rogue: Exploring the Dungeons of Doom
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7 * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman
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8 * All rights reserved.
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9 *
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10 * See the file LICENSE.TXT for full copyright and licensing information.
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11 */
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12
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13 #include <stdlib.h>
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14 #include <curses.h>
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15 #include "rogue.h"
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16
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17 #ifdef MASTER
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18 int total = 0; /* total dynamic memory bytes */
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19 #endif
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20
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21 /*
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22 * detach:
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23 * takes an item out of whatever linked list it might be in
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24 */
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25
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26 void
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27 _detach(THING **list, THING *item)
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28 {
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29 if (*list == item)
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30 *list = next(item);
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31 if (prev(item) != NULL)
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32 item->l_prev->l_next = next(item);
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33 if (next(item) != NULL)
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34 item->l_next->l_prev = prev(item);
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35 item->l_next = NULL;
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36 item->l_prev = NULL;
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37 }
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38
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39 /*
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40 * _attach:
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41 * add an item to the head of a list
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42 */
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43
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44 void
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45 _attach(THING **list, THING *item)
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46 {
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47 if (*list != NULL)
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48 {
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49 item->l_next = *list;
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50 (*list)->l_prev = item;
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51 item->l_prev = NULL;
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52 }
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53 else
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54 {
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55 item->l_next = NULL;
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56 item->l_prev = NULL;
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57 }
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58 *list = item;
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59 }
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60
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61 /*
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62 * _free_list:
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63 * Throw the whole blamed thing away
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64 */
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65
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66 void
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67 _free_list(THING **ptr)
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68 {
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69 THING *item;
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70
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71 while (*ptr != NULL)
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72 {
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73 item = *ptr;
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74 *ptr = next(item);
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75 discard(item);
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76 }
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77 }
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78
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79 /*
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80 * discard:
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81 * Free up an item
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82 */
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83
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84 void
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85 discard(THING *item)
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86 {
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87 #ifdef MASTER
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88 total--;
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89 #endif
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90 free(item);
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91 }
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92
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93 /*
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94 * new_item
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95 * Get a new item with a specified size
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96 */
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97 THING *
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98 new_item(void)
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99 {
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100 THING *item;
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101
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102 if ((item = calloc(1, sizeof *item)) == NULL) {
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103 #ifdef MASTER
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104 msg("ran out of memory after %d items", total);
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105 #endif
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106 return NULL;
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107 }
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108
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109 #ifdef MASTER
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