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annotate arogue5/list.c @ 164:49af2fd0bb0c

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Move some autotools files to where configure can find them. rogue5 uses config.guess and config.sub to find the canonical system names. The configure script expects them to be in the same directory as install-sh. So they have been relocated to the top level. This is a quick and dirty fix. The eventual plan is to relocate them to /dev/null. I also suspect they should be used to set HOST, not TARGET. Rogue is not a cross-compiler.
author John "Elwin" Edwards
date Tue, 16 Jun 2015 11:44:49 -0400
parents 0ed67132cf10
children 56e748983fa8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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63
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
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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 * Advanced Rogue
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5 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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6 * All rights reserved.
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7 *
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8 * Based on "Rogue: Exploring the Dungeons of Doom"
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9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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10 * All rights reserved.
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11 *
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12 * See the file LICENSE.TXT for full copyright and licensing information.
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13 */
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14
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15 #include <stdlib.h>
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16 #include "curses.h"
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17 #include "rogue.h"
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18
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19 /*
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20 * detach:
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21 * Takes an item out of whatever linked list it might be in
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22 */
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23
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24 _detach(list, item)
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25 register struct linked_list **list, *item;
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26 {
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27 if (*list == item)
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28 *list = next(item);
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29 if (prev(item) != NULL) item->l_prev->l_next = next(item);
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30 if (next(item) != NULL) item->l_next->l_prev = prev(item);
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31 item->l_next = NULL;
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32 item->l_prev = NULL;
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33 }
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34
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35 /*
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36 * _attach:
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37 * add an item to the head of a list
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38 */
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39
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40 _attach(list, item)
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41 register struct linked_list **list, *item;
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42 {
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43 if (*list != NULL)
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44 {
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45 item->l_next = *list;
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46 (*list)->l_prev = item;
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47 item->l_prev = NULL;
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48 }
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49 else
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50 {
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51 item->l_next = NULL;
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52 item->l_prev = NULL;
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53 }
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54
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55 *list = item;
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56 }
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57
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58 /*
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59 * o_free_list:
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60 * Throw the whole object list away
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61 */
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62
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63 _o_free_list(ptr)
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64 register struct linked_list **ptr;
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65 {
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66 register struct linked_list *item;
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67
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68 while (*ptr != NULL)
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69 {
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70 item = *ptr;
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71 *ptr = next(item);
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72 o_discard(item);
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73 }
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74 }
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75
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76 /*
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77 * o_discard:
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78 * free up an item and its object(and maybe contents)
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79 */
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80
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81 o_discard(item)
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82 register struct linked_list *item;
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83 {
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84 register struct object *obj;
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85 obj = OBJPTR(item);
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86 if (obj->contents != NULL)
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87 o_free_list(obj->contents);
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88 total -= 2;
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89 FREE(item->l_data);
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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 * t_free_list:
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95 * Throw the whole thing list away
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96 */
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97
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98 _t_free_list(ptr)
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99 register struct linked_list **ptr;
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100 {
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101 register struct linked_list *item;
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102
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103 while (*ptr != NULL)
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104 {
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105 item = *ptr;
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106 *ptr = next(item);
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107 t_discard(item);
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108 }
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109 }
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110
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111 /*
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112 * t_discard:
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113 * free up an item and its thing
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114 */
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115
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116 t_discard(item)
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117 struct linked_list *item;
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118 {
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119 total -= 2;
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120 FREE(item->l_data);
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121 FREE(item);
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122 }
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123
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124 /*
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125 * destroy_item:
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126 * get rid of an item structure -- don't worry about contents
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127 */
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128
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129 destroy_item(item)
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130 register struct linked_list *item;
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131 {
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132 total--;
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133 FREE(item);
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134 }
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135
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136 /*
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137 * new_item
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138 * get a new item with a specified size
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139 */
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140
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141 struct linked_list *
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142 new_item(size)
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143 int size;
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144 {
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145 register struct linked_list *item;
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146
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147 if ((item = (struct linked_list *) new(sizeof *item)) == NULL)
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148 msg("Ran out of memory for header after %d items", total);
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149 if ((item->l_data = new(size)) == NULL)
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150 msg("Ran out of memory for data after %d items", total);
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151 item->l_next = item->l_prev = NULL;
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152 return item;
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153 }
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154
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155 /*
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156 * creat_item:
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157 * Create just an item structure -- don't make any contents
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158 */
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159
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160 struct linked_list *
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161 creat_item()
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162 {
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163 register struct linked_list *item;
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164
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165 if ((item = (struct linked_list *) new(sizeof *item)) == NULL)
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166 msg("Ran out of memory for header after %d items", total);
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167 item->l_next = item->l_prev = NULL;
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168 return item;
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169 }
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170
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171 char *
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172 new(size)
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173 int size;
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174 {
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175 register char *space = ALLOC(size);
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176 static char errbuf[LINELEN];
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177
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178 if (space == NULL) {
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179 sprintf(errbuf,"Rogue ran out of memory (used = %d, wanted = %d).",
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180 md_memused(), size);
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181 fatal(errbuf);
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182 }
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183 total++;
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184 return space;
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185 }