src/linked_list.c

Fri, 07 Jul 2023 17:31:25 +0200

author
Mike Becker <universe@uap-core.de>
date
Fri, 07 Jul 2023 17:31:25 +0200
changeset 734
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parent 708
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child 735
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permissions
-rw-r--r--

slightly improve CSS

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include "cx/linked_list.h"
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30 #include "cx/utils.h"
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31 #include <string.h>
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32 #include <assert.h>
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33
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34 // LOW LEVEL LINKED LIST FUNCTIONS
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35
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36 #define CX_LL_PTR(cur, off) (*(void**)(((char*)(cur))+(off)))
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37 #define ll_prev(node) CX_LL_PTR(node, loc_prev)
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38 #define ll_next(node) CX_LL_PTR(node, loc_next)
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39 #define ll_advance(node) CX_LL_PTR(node, loc_advance)
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40 #define ll_data(node) (((char*)(node))+loc_data)
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41
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42 void *cx_linked_list_at(
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43 void const *start,
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44 size_t start_index,
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45 ptrdiff_t loc_advance,
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46 size_t index
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47 ) {
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48 assert(start != NULL);
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49 assert(loc_advance >= 0);
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50 size_t i = start_index;
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51 void const *cur = start;
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52 while (i != index && cur != NULL) {
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53 cur = ll_advance(cur);
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54 i < index ? i++ : i--;
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55 }
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56 return (void *) cur;
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57 }
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58
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59 ssize_t cx_linked_list_find(
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60 void const *start,
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61 ptrdiff_t loc_advance,
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62 ptrdiff_t loc_data,
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63 cx_compare_func cmp_func,
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64 void const *elem
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65 ) {
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66 assert(start != NULL);
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67 assert(loc_advance >= 0);
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68 assert(loc_data >= 0);
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69 assert(cmp_func);
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70
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71 void const *node = start;
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72 ssize_t index = 0;
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73 do {
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74 void *current = ll_data(node);
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75 if (cmp_func(current, elem) == 0) {
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76 return index;
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77 }
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78 node = ll_advance(node);
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79 index++;
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80 } while (node != NULL);
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81 return -1;
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82 }
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83
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84 void *cx_linked_list_first(
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85 void const *node,
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86 ptrdiff_t loc_prev
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87 ) {
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88 return cx_linked_list_last(node, loc_prev);
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89 }
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90
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91 void *cx_linked_list_last(
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92 void const *node,
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93 ptrdiff_t loc_next
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94 ) {
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95 assert(node != NULL);
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96 assert(loc_next >= 0);
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97
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98 void const *cur = node;
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99 void const *last;
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100 do {
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101 last = cur;
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102 } while ((cur = ll_next(cur)) != NULL);
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103
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104 return (void *) last;
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105 }
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106
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107 void *cx_linked_list_prev(
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108 void const *begin,
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109 ptrdiff_t loc_next,
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110 void const *node
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111 ) {
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112 assert(begin != NULL);
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113 assert(node != NULL);
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114 assert(loc_next >= 0);
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115 if (begin == node) return NULL;
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116 void const *cur = begin;
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117 void const *next;
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118 while (1) {
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119 next = ll_next(cur);
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120 if (next == node) return (void *) cur;
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121 cur = next;
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122 }
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123 }
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124
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125 void cx_linked_list_link(
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126 void *left,
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127 void *right,
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128 ptrdiff_t loc_prev,
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129 ptrdiff_t loc_next
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130 ) {
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131 assert(loc_next >= 0);
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132 ll_next(left) = right;
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133 if (loc_prev >= 0) {
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134 ll_prev(right) = left;
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135 }
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136 }
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137
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138 void cx_linked_list_unlink(
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139 void *left,
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140 void *right,
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141 ptrdiff_t loc_prev,
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142 ptrdiff_t loc_next
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143 ) {
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144 assert (loc_next >= 0);
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145 assert(ll_next(left) == right);
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146 ll_next(left) = NULL;
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147 if (loc_prev >= 0) {
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148 assert(ll_prev(right) == left);
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149 ll_prev(right) = NULL;
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150 }
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151 }
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152
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153 void cx_linked_list_add(
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154 void **begin,
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155 void **end,
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156 ptrdiff_t loc_prev,
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157 ptrdiff_t loc_next,
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158 void *new_node
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159 ) {
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160 void *last;
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161 if (end == NULL) {
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162 assert(begin != NULL);
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163 last = *begin == NULL ? NULL : cx_linked_list_last(*begin, loc_next);
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164 } else {
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165 last = *end;
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166 }
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167 cx_linked_list_insert_chain(begin, end, loc_prev, loc_next, last, new_node, new_node);
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168 }
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169
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170 void cx_linked_list_prepend(
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171 void **begin,
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172 void **end,
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173 ptrdiff_t loc_prev,
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174 ptrdiff_t loc_next,
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175 void *new_node
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176 ) {
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177 cx_linked_list_insert_chain(begin, end, loc_prev, loc_next, NULL, new_node, new_node);
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178 }
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179
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180 void cx_linked_list_insert(
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181 void **begin,
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182 void **end,
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183 ptrdiff_t loc_prev,
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184 ptrdiff_t loc_next,
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185 void *node,
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186 void *new_node
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187 ) {
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188 cx_linked_list_insert_chain(begin, end, loc_prev, loc_next, node, new_node, new_node);
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189 }
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190
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191 void cx_linked_list_insert_chain(
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192 void **begin,
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193 void **end,
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194 ptrdiff_t loc_prev,
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195 ptrdiff_t loc_next,
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196 void *node,
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197 void *insert_begin,
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198 void *insert_end
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199 ) {
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200 // find the end of the chain, if not specified
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201 if (insert_end == NULL) {
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202 insert_end = cx_linked_list_last(insert_begin, loc_next);
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203 }
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204
481
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205 // determine the successor
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206 void *successor;
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207 if (node == NULL) {
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208 assert(begin != NULL || (end != NULL && loc_prev >= 0));
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209 if (begin != NULL) {
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210 successor = *begin;
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211 *begin = insert_begin;
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212 } else {
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213 successor = *end == NULL ? NULL : cx_linked_list_first(*end, loc_prev);
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214 }
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215 } else {
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216 successor = ll_next(node);
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217 cx_linked_list_link(node, insert_begin, loc_prev, loc_next);
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218 }
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219
481
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220 if (successor == NULL) {
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221 // the list ends with the new chain
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222 if (end != NULL) {
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223 *end = insert_end;
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224 }
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225 } else {
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226 cx_linked_list_link(insert_end, successor, loc_prev, loc_next);
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227 }
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228 }
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229
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230 void cx_linked_list_remove(
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231 void **begin,
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232 void **end,
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233 ptrdiff_t loc_prev,
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234 ptrdiff_t loc_next,
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235 void *node
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236 ) {
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237 assert(node != NULL);
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238 assert(loc_next >= 0);
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239 assert(loc_prev >= 0 || begin != NULL);
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240
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241 // find adjacent nodes
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242 void *next = ll_next(node);
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243 void *prev;
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244 if (loc_prev >= 0) {
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245 prev = ll_prev(node);
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246 } else {
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247 prev = cx_linked_list_prev(*begin, loc_next, node);
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248 }
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249
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250 // update next pointer of prev node, or set begin
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251 if (prev == NULL) {
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252 if (begin != NULL) {
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253 *begin = next;
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254 }
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255 } else {
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256 ll_next(prev) = next;
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257 }
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258
476
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259 // update prev pointer of next node, or set end
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260 if (next == NULL) {
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261 if (end != NULL) {
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262 *end = prev;
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263 }
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264 } else if (loc_prev >= 0) {
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265 ll_prev(next) = prev;
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266 }
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267 }
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268
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269 size_t cx_linked_list_size(
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270 void const *node,
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271 ptrdiff_t loc_next
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272 ) {
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273 assert(loc_next >= 0);
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274 size_t size = 0;
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275 while (node != NULL) {
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276 node = ll_next(node);
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277 size++;
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278 }
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279 return size;
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280 }
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281
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282 #ifndef CX_LINKED_LIST_SORT_SBO_SIZE
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283 #define CX_LINKED_LIST_SORT_SBO_SIZE 1024
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284 #endif
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285
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286 static void cx_linked_list_sort_merge(
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287 ptrdiff_t loc_prev,
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288 ptrdiff_t loc_next,
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289 ptrdiff_t loc_data,
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290 size_t length,
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291 void *ls,
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292 void *le,
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293 void *re,
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294 cx_compare_func cmp_func,
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295 void **begin,
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296 void **end
481
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297 ) {
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298 void *sbo[CX_LINKED_LIST_SORT_SBO_SIZE];
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299 void **sorted = length >= CX_LINKED_LIST_SORT_SBO_SIZE ?
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300 malloc(sizeof(void *) * length) : sbo;
508
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301 if (sorted == NULL) abort();
468
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302 void *rc, *lc;
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303
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304 lc = ls;
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305 rc = le;
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306 size_t n = 0;
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307 while (lc && lc != le && rc != re) {
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308 if (cmp_func(ll_data(lc), ll_data(rc)) <= 0) {
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309 sorted[n] = lc;
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310 lc = ll_next(lc);
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311 } else {
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312 sorted[n] = rc;
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313 rc = ll_next(rc);
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314 }
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315 n++;
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316 }
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317 while (lc && lc != le) {
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318 sorted[n] = lc;
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319 lc = ll_next(lc);
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320 n++;
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321 }
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322 while (rc && rc != re) {
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323 sorted[n] = rc;
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324 rc = ll_next(rc);
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325 n++;
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326 }
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327
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328 // Update pointer
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329 if (loc_prev >= 0) ll_prev(sorted[0]) = NULL;
509
0d3c6075f82c #129 - remove test code duplication
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330 cx_for_n (i, length - 1) {
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331 cx_linked_list_link(sorted[i], sorted[i + 1], loc_prev, loc_next);
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332 }
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333 ll_next(sorted[length - 1]) = NULL;
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334
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335 *begin = sorted[0];
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336 *end = sorted[length-1];
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337 if (sorted != sbo) {
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338 free(sorted);
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339 }
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340 }
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341
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342 void cx_linked_list_sort( // NOLINT(misc-no-recursion) - purposely recursive function
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343 void **begin,
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344 void **end,
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345 ptrdiff_t loc_prev,
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346 ptrdiff_t loc_next,
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347 ptrdiff_t loc_data,
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348 cx_compare_func cmp_func
481
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349 ) {
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350 assert(begin != NULL);
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351 assert(loc_next >= 0);
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352 assert(loc_data >= 0);
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353 assert(cmp_func);
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354
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355 void *lc, *ls, *le, *re;
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356
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357 // set start node
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358 ls = *begin;
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359
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3390b58ad15a fix cx_linked_list_sort() not working for empty lists
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360 // early exit when this list is empty
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361 if (ls == NULL) return;
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362
468
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363 // check how many elements are already sorted
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364 lc = ls;
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365 size_t ln = 1;
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366 while (ll_next(lc) != NULL && cmp_func(ll_data(ll_next(lc)), ll_data(lc)) > 0) {
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367 lc = ll_next(lc);
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368 ln++;
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369 }
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370 le = ll_next(lc);
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371
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372 // if first unsorted node is NULL, the list is already completely sorted
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373 if (le != NULL) {
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374 void *rc;
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375 size_t rn = 1;
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376 rc = le;
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377 // skip already sorted elements
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378 while (ll_next(rc) != NULL && cmp_func(ll_data(ll_next(rc)), ll_data(rc)) > 0) {
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379 rc = ll_next(rc);
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380 rn++;
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381 }
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382 re = ll_next(rc);
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383
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384 // {ls,...,le->prev} and {rs,...,re->prev} are sorted - merge them
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385 void *sorted_begin, *sorted_end;
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386 cx_linked_list_sort_merge(loc_prev, loc_next, loc_data,
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diff changeset
387 ln + rn, ls, le, re, cmp_func,
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diff changeset
388 &sorted_begin, &sorted_end);
468
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389
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390 // Something left? Sort it!
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391 size_t remainder_length = cx_linked_list_size(re, loc_next);
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392 if (remainder_length > 0) {
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393 void *remainder = re;
639
309e8b08c60e temporarily remove pointer lists - see #234
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394 cx_linked_list_sort(&remainder, NULL, loc_prev, loc_next, loc_data, cmp_func);
468
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395
75ae1dccd101 add cx_linked_list_sort()
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396 // merge sorted list with (also sorted) remainder
703
425d4279856f improve cx_linked_list_sort() - fixes #257
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diff changeset
397 cx_linked_list_sort_merge(loc_prev, loc_next, loc_data,
425d4279856f improve cx_linked_list_sort() - fixes #257
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diff changeset
398 ln + rn + remainder_length,
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diff changeset
399 sorted_begin, remainder, NULL, cmp_func,
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diff changeset
400 &sorted_begin, &sorted_end);
468
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diff changeset
401 }
703
425d4279856f improve cx_linked_list_sort() - fixes #257
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diff changeset
402 *begin = sorted_begin;
425d4279856f improve cx_linked_list_sort() - fixes #257
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diff changeset
403 if (end) *end = sorted_end;
468
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diff changeset
404 }
75ae1dccd101 add cx_linked_list_sort()
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diff changeset
405 }
75ae1dccd101 add cx_linked_list_sort()
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diff changeset
406
486
d7ca126eab7f add cx_linked_list_compare() and simplifies some tests
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diff changeset
407 int cx_linked_list_compare(
489
af6be1e123aa add some const qualifiers
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parents: 488
diff changeset
408 void const *begin_left,
af6be1e123aa add some const qualifiers
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parents: 488
diff changeset
409 void const *begin_right,
486
d7ca126eab7f add cx_linked_list_compare() and simplifies some tests
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parents: 481
diff changeset
410 ptrdiff_t loc_advance,
d7ca126eab7f add cx_linked_list_compare() and simplifies some tests
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parents: 481
diff changeset
411 ptrdiff_t loc_data,
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
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diff changeset
412 cx_compare_func cmp_func
486
d7ca126eab7f add cx_linked_list_compare() and simplifies some tests
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parents: 481
diff changeset
413 ) {
489
af6be1e123aa add some const qualifiers
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diff changeset
414 void const *left = begin_left, *right = begin_right;
486
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parents: 481
diff changeset
415
d7ca126eab7f add cx_linked_list_compare() and simplifies some tests
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parents: 481
diff changeset
416 while (left != NULL && right != NULL) {
639
309e8b08c60e temporarily remove pointer lists - see #234
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parents: 638
diff changeset
417 void const *left_data = ll_data(left);
309e8b08c60e temporarily remove pointer lists - see #234
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diff changeset
418 void const *right_data = ll_data(right);
552
4373c2a90066 #178 fix that lists of different kind cannot be compared
Mike Becker <universe@uap-core.de>
parents: 528
diff changeset
419 int result = cmp_func(left_data, right_data);
486
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diff changeset
420 if (result != 0) return result;
d7ca126eab7f add cx_linked_list_compare() and simplifies some tests
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diff changeset
421 left = ll_advance(left);
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diff changeset
422 right = ll_advance(right);
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diff changeset
423 }
d7ca126eab7f add cx_linked_list_compare() and simplifies some tests
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diff changeset
424
d7ca126eab7f add cx_linked_list_compare() and simplifies some tests
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parents: 481
diff changeset
425 if (left != NULL) { return 1; }
d7ca126eab7f add cx_linked_list_compare() and simplifies some tests
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parents: 481
diff changeset
426 else if (right != NULL) { return -1; }
d7ca126eab7f add cx_linked_list_compare() and simplifies some tests
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parents: 481
diff changeset
427 else { return 0; }
d7ca126eab7f add cx_linked_list_compare() and simplifies some tests
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diff changeset
428 }
d7ca126eab7f add cx_linked_list_compare() and simplifies some tests
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parents: 481
diff changeset
429
481
eef025d82a34 add several new linked list functions
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parents: 480
diff changeset
430 void cx_linked_list_reverse(
eef025d82a34 add several new linked list functions
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parents: 480
diff changeset
431 void **begin,
eef025d82a34 add several new linked list functions
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parents: 480
diff changeset
432 void **end,
eef025d82a34 add several new linked list functions
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parents: 480
diff changeset
433 ptrdiff_t loc_prev,
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
434 ptrdiff_t loc_next
eef025d82a34 add several new linked list functions
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parents: 480
diff changeset
435 ) {
473
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
Mike Becker <universe@uap-core.de>
parents: 469
diff changeset
436 assert(begin != NULL);
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
Mike Becker <universe@uap-core.de>
parents: 469
diff changeset
437 assert(loc_next >= 0);
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
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parents: 469
diff changeset
438
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
Mike Becker <universe@uap-core.de>
parents: 469
diff changeset
439 // swap all links
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
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parents: 469
diff changeset
440 void *prev = NULL;
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
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parents: 469
diff changeset
441 void *cur = *begin;
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
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parents: 469
diff changeset
442 while (cur != NULL) {
480
e3be53a3354f add cx_linked_list_find()
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parents: 478
diff changeset
443 void *next = ll_next(cur);
473
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
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parents: 469
diff changeset
444
480
e3be53a3354f add cx_linked_list_find()
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parents: 478
diff changeset
445 ll_next(cur) = prev;
473
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
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parents: 469
diff changeset
446 if (loc_prev >= 0) {
480
e3be53a3354f add cx_linked_list_find()
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parents: 478
diff changeset
447 ll_prev(cur) = next;
473
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
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parents: 469
diff changeset
448 }
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
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parents: 469
diff changeset
449
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
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parents: 469
diff changeset
450 prev = cur;
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
Mike Becker <universe@uap-core.de>
parents: 469
diff changeset
451 cur = next;
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
Mike Becker <universe@uap-core.de>
parents: 469
diff changeset
452 }
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
Mike Becker <universe@uap-core.de>
parents: 469
diff changeset
453
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
Mike Becker <universe@uap-core.de>
parents: 469
diff changeset
454 // update begin and end
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
Mike Becker <universe@uap-core.de>
parents: 469
diff changeset
455 if (end != NULL) {
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
Mike Becker <universe@uap-core.de>
parents: 469
diff changeset
456 *end = *begin;
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
Mike Becker <universe@uap-core.de>
parents: 469
diff changeset
457 }
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
Mike Becker <universe@uap-core.de>
parents: 469
diff changeset
458 *begin = prev;
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
Mike Becker <universe@uap-core.de>
parents: 469
diff changeset
459 }
1bd4b8c28722 add cx_linked_list_{prev, remove, reverse}
Mike Becker <universe@uap-core.de>
parents: 469
diff changeset
460
628
1e2be40f0cb5 use //-style single line comments everywhere
Mike Becker <universe@uap-core.de>
parents: 592
diff changeset
461 // HIGH LEVEL LINKED LIST IMPLEMENTATION
398
8d506ed6c1c0 adds first draft for linked list implementation
Mike Becker <universe@uap-core.de>
parents:
diff changeset
462
647
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
463 bool CX_DISABLE_LINKED_LIST_SWAP_SBO = false;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
464
447
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
465 typedef struct cx_linked_list_node cx_linked_list_node;
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
466 struct cx_linked_list_node {
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
467 cx_linked_list_node *prev;
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
468 cx_linked_list_node *next;
403
8fa43b732980 use C99 flexible array to mark the node's payload
Mike Becker <universe@uap-core.de>
parents: 402
diff changeset
469 char payload[];
447
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
470 };
402
a34b93911956 use named fields to access node memory
Mike Becker <universe@uap-core.de>
parents: 401
diff changeset
471
446
668757098b73 remove unnecessary fields from linked list node and simplifies cx_ll_add()
Mike Becker <universe@uap-core.de>
parents: 441
diff changeset
472 #define CX_LL_LOC_PREV offsetof(cx_linked_list_node, prev)
668757098b73 remove unnecessary fields from linked list node and simplifies cx_ll_add()
Mike Becker <universe@uap-core.de>
parents: 441
diff changeset
473 #define CX_LL_LOC_NEXT offsetof(cx_linked_list_node, next)
469
0458bff0b1cd add high level list sort and inlines method invocation functions
Mike Becker <universe@uap-core.de>
parents: 468
diff changeset
474 #define CX_LL_LOC_DATA offsetof(cx_linked_list_node, payload)
439
9a5adedd6de6 add high-level function cxListAt()
Mike Becker <universe@uap-core.de>
parents: 438
diff changeset
475
398
8d506ed6c1c0 adds first draft for linked list implementation
Mike Becker <universe@uap-core.de>
parents:
diff changeset
476 typedef struct {
500
eb9e7bd40a8e do not hide pointers behind typedefs
Mike Becker <universe@uap-core.de>
parents: 499
diff changeset
477 struct cx_list_s base;
446
668757098b73 remove unnecessary fields from linked list node and simplifies cx_ll_add()
Mike Becker <universe@uap-core.de>
parents: 441
diff changeset
478 cx_linked_list_node *begin;
668757098b73 remove unnecessary fields from linked list node and simplifies cx_ll_add()
Mike Becker <universe@uap-core.de>
parents: 441
diff changeset
479 cx_linked_list_node *end;
398
8d506ed6c1c0 adds first draft for linked list implementation
Mike Becker <universe@uap-core.de>
parents:
diff changeset
480 } cx_linked_list;
8d506ed6c1c0 adds first draft for linked list implementation
Mike Becker <universe@uap-core.de>
parents:
diff changeset
481
481
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
482 static cx_linked_list_node *cx_ll_node_at(
489
af6be1e123aa add some const qualifiers
Mike Becker <universe@uap-core.de>
parents: 488
diff changeset
483 cx_linked_list const *list,
481
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
484 size_t index
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
485 ) {
447
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
486 if (index >= list->base.size) {
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
487 return NULL;
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
488 } else if (index > list->base.size / 2) {
468
75ae1dccd101 add cx_linked_list_sort()
Mike Becker <universe@uap-core.de>
parents: 467
diff changeset
489 return cx_linked_list_at(list->end, list->base.size - 1, CX_LL_LOC_PREV, index);
447
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
490 } else {
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
491 return cx_linked_list_at(list->begin, 0, CX_LL_LOC_NEXT, index);
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
492 }
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
493 }
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
494
499
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
495 static int cx_ll_insert_at(
500
eb9e7bd40a8e do not hide pointers behind typedefs
Mike Becker <universe@uap-core.de>
parents: 499
diff changeset
496 struct cx_list_s *list,
499
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
497 cx_linked_list_node *node,
489
af6be1e123aa add some const qualifiers
Mike Becker <universe@uap-core.de>
parents: 488
diff changeset
498 void const *elem
481
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
499 ) {
448
37c5d2fdb36b implement cx_ll_insert()
Mike Becker <universe@uap-core.de>
parents: 447
diff changeset
500
481
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
501 // create the new new_node
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
502 cx_linked_list_node *new_node = cxMalloc(list->allocator,
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
503 sizeof(cx_linked_list_node) + list->item_size);
448
37c5d2fdb36b implement cx_ll_insert()
Mike Becker <universe@uap-core.de>
parents: 447
diff changeset
504
37c5d2fdb36b implement cx_ll_insert()
Mike Becker <universe@uap-core.de>
parents: 447
diff changeset
505 // sortir if failed
481
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
506 if (new_node == NULL) return 1;
448
37c5d2fdb36b implement cx_ll_insert()
Mike Becker <universe@uap-core.de>
parents: 447
diff changeset
507
481
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
508 // initialize new new_node
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
509 new_node->prev = new_node->next = NULL;
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
510 memcpy(new_node->payload, elem, list->item_size);
448
37c5d2fdb36b implement cx_ll_insert()
Mike Becker <universe@uap-core.de>
parents: 447
diff changeset
511
481
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
512 // insert
499
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
513 cx_linked_list *ll = (cx_linked_list *) list;
481
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
514 cx_linked_list_insert_chain(
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
515 (void **) &ll->begin, (void **) &ll->end,
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
516 CX_LL_LOC_PREV, CX_LL_LOC_NEXT,
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
517 node, new_node, new_node
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
518 );
448
37c5d2fdb36b implement cx_ll_insert()
Mike Becker <universe@uap-core.de>
parents: 447
diff changeset
519
37c5d2fdb36b implement cx_ll_insert()
Mike Becker <universe@uap-core.de>
parents: 447
diff changeset
520 // increase the size and return
37c5d2fdb36b implement cx_ll_insert()
Mike Becker <universe@uap-core.de>
parents: 447
diff changeset
521 list->size++;
37c5d2fdb36b implement cx_ll_insert()
Mike Becker <universe@uap-core.de>
parents: 447
diff changeset
522 return 0;
37c5d2fdb36b implement cx_ll_insert()
Mike Becker <universe@uap-core.de>
parents: 447
diff changeset
523 }
37c5d2fdb36b implement cx_ll_insert()
Mike Becker <universe@uap-core.de>
parents: 447
diff changeset
524
638
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
525 static size_t cx_ll_insert_array(
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
526 struct cx_list_s *list,
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
527 size_t index,
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
528 void const *array,
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
529 size_t n
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
530 ) {
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
531 // out-of bounds and corner case check
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
532 if (index > list->size || n == 0) return 0;
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
533
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
534 // find position efficiently
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
535 cx_linked_list_node *node = index == 0 ? NULL : cx_ll_node_at((cx_linked_list *) list, index - 1);
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
536
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
537 // perform first insert
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
538 if (0 != cx_ll_insert_at(list, node, array)) {
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
539 return 1;
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
540 }
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
541
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
542 // is there more?
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
543 if (n == 1) return 1;
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
544
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
545 // we now know exactly where we are
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
546 node = node == NULL ? ((cx_linked_list *) list)->begin : node->next;
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
547
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
548 // we can add the remaining nodes and immedately advance to the inserted node
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
549 char const *source = array;
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
550 for (size_t i = 1; i < n; i++) {
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
551 source += list->item_size;
638
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
552 if (0 != cx_ll_insert_at(list, node, source)) {
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
553 return i;
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
554 }
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
555 node = node->next;
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
556 }
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
557 return n;
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
558 }
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
559
641
d402fead3386 add new pointer list wrapper - resolves #234
Mike Becker <universe@uap-core.de>
parents: 640
diff changeset
560 static int cx_ll_insert_element(
d402fead3386 add new pointer list wrapper - resolves #234
Mike Becker <universe@uap-core.de>
parents: 640
diff changeset
561 struct cx_list_s *list,
d402fead3386 add new pointer list wrapper - resolves #234
Mike Becker <universe@uap-core.de>
parents: 640
diff changeset
562 size_t index,
d402fead3386 add new pointer list wrapper - resolves #234
Mike Becker <universe@uap-core.de>
parents: 640
diff changeset
563 void const *element
d402fead3386 add new pointer list wrapper - resolves #234
Mike Becker <universe@uap-core.de>
parents: 640
diff changeset
564 ) {
d402fead3386 add new pointer list wrapper - resolves #234
Mike Becker <universe@uap-core.de>
parents: 640
diff changeset
565 return 1 != cx_ll_insert_array(list, index, element, 1);
d402fead3386 add new pointer list wrapper - resolves #234
Mike Becker <universe@uap-core.de>
parents: 640
diff changeset
566 }
d402fead3386 add new pointer list wrapper - resolves #234
Mike Becker <universe@uap-core.de>
parents: 640
diff changeset
567
481
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
568 static int cx_ll_remove(
500
eb9e7bd40a8e do not hide pointers behind typedefs
Mike Becker <universe@uap-core.de>
parents: 499
diff changeset
569 struct cx_list_s *list,
481
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
570 size_t index
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
571 ) {
447
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
572 cx_linked_list *ll = (cx_linked_list *) list;
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
573 cx_linked_list_node *node = cx_ll_node_at(ll, index);
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
574
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
575 // out-of-bounds check
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
576 if (node == NULL) return 1;
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
577
664
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
578 // element destruction
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
579 cx_invoke_destructor(list, node->payload);
664
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
580
476
60ff4561dc04 change contract of cx_linked_list_remove()
Mike Becker <universe@uap-core.de>
parents: 475
diff changeset
581 // remove
60ff4561dc04 change contract of cx_linked_list_remove()
Mike Becker <universe@uap-core.de>
parents: 475
diff changeset
582 cx_linked_list_remove((void **) &ll->begin, (void **) &ll->end,
60ff4561dc04 change contract of cx_linked_list_remove()
Mike Becker <universe@uap-core.de>
parents: 475
diff changeset
583 CX_LL_LOC_PREV, CX_LL_LOC_NEXT, node);
447
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
584
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
585 // adjust size
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
586 list->size--;
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
587
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
588 // free and return
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
589 cxFree(list->allocator, node);
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
590
438
cd3069757010 add function cx_linked_list_at()
Mike Becker <universe@uap-core.de>
parents: 437
diff changeset
591 return 0;
398
8d506ed6c1c0 adds first draft for linked list implementation
Mike Becker <universe@uap-core.de>
parents:
diff changeset
592 }
8d506ed6c1c0 adds first draft for linked list implementation
Mike Becker <universe@uap-core.de>
parents:
diff changeset
593
664
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
594 static void cx_ll_clear(struct cx_list_s *list) {
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
595 if (list->size == 0) return;
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
596
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
597 cx_linked_list *ll = (cx_linked_list *) list;
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
598 cx_linked_list_node *node = ll->begin;
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
599 while (node != NULL) {
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
600 cx_invoke_destructor(list, node->payload);
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
601 cx_linked_list_node *next = node->next;
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
602 cxFree(list->allocator, node);
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
603 node = next;
664
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
604 }
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
605 ll->begin = ll->end = NULL;
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
606 list->size = 0;
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
607 }
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
608
647
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
609 #ifndef CX_LINKED_LIST_SWAP_SBO_SIZE
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
610 #define CX_LINKED_LIST_SWAP_SBO_SIZE 16
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
611 #endif
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
612
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
613 static int cx_ll_swap(
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
614 struct cx_list_s *list,
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
615 size_t i,
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
616 size_t j
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
617 ) {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
618 if (i >= list->size || j >= list->size) return 1;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
619 if (i == j) return 0;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
620
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
621 // perform an optimized search that finds both elements in one run
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
622 cx_linked_list *ll = (cx_linked_list *) list;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
623 size_t mid = list->size / 2;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
624 size_t left, right;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
625 if (i < j) {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
626 left = i;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
627 right = j;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
628 } else {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
629 left = j;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
630 right = i;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
631 }
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
632 cx_linked_list_node *nleft, *nright;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
633 if (left < mid && right < mid) {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
634 // case 1: both items left from mid
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
635 nleft = cx_ll_node_at(ll, left);
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
636 nright = nleft;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
637 for (size_t c = left; c < right; c++) {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
638 nright = nright->next;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
639 }
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
640 } else if (left >= mid && right >= mid) {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
641 // case 2: both items right from mid
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
642 nright = cx_ll_node_at(ll, right);
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
643 nleft = nright;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
644 for (size_t c = right; c > left; c--) {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
645 nleft = nleft->prev;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
646 }
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
647 } else {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
648 // case 3: one item left, one item right
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
649
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
650 // chose the closest to begin / end
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
651 size_t closest;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
652 size_t other;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
653 size_t diff2boundary = list->size - right - 1;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
654 if (left <= diff2boundary) {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
655 closest = left;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
656 other = right;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
657 nleft = cx_ll_node_at(ll, left);
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
658 } else {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
659 closest = right;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
660 other = left;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
661 diff2boundary = left;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
662 nright = cx_ll_node_at(ll, right);
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
663 }
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
664
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
665 // is other element closer to us or closer to boundary?
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
666 if (right - left <= diff2boundary) {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
667 // search other element starting from already found element
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
668 if (closest == left) {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
669 nright = nleft;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
670 for (size_t c = left; c < right; c++) {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
671 nright = nright->next;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
672 }
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
673 } else {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
674 nleft = nright;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
675 for (size_t c = right; c > left; c--) {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
676 nleft = nleft->prev;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
677 }
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
678 }
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
679 } else {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
680 // search other element starting at the boundary
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
681 if (closest == left) {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
682 nright = cx_ll_node_at(ll, other);
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
683 } else {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
684 nleft = cx_ll_node_at(ll, other);
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
685 }
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
686 }
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
687 }
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
688
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
689 if (list->item_size > CX_LINKED_LIST_SWAP_SBO_SIZE || CX_DISABLE_LINKED_LIST_SWAP_SBO) {
647
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
690 cx_linked_list_node *prev = nleft->prev;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
691 cx_linked_list_node *next = nright->next;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
692 cx_linked_list_node *midstart = nleft->next;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
693 cx_linked_list_node *midend = nright->prev;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
694
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
695 if (prev == NULL) {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
696 ll->begin = nright;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
697 } else {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
698 prev->next = nright;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
699 }
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
700 nright->prev = prev;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
701 if (midstart == nright) {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
702 // special case: both nodes are adjacent
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
703 nright->next = nleft;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
704 nleft->prev = nright;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
705 } else {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
706 // likely case: a chain is between the two nodes
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
707 nright->next = midstart;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
708 midstart->prev = nright;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
709 midend->next = nleft;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
710 nleft->prev = midend;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
711 }
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
712 nleft->next = next;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
713 if (next == NULL) {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
714 ll->end = nleft;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
715 } else {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
716 next->prev = nleft;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
717 }
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
718 } else {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
719 // swap payloads to avoid relinking
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
720 char buf[CX_LINKED_LIST_SWAP_SBO_SIZE];
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
721 memcpy(buf, nleft->payload, list->item_size);
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
722 memcpy(nleft->payload, nright->payload, list->item_size);
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
723 memcpy(nright->payload, buf, list->item_size);
647
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
724 }
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
725
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
726 return 0;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
727 }
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
728
481
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
729 static void *cx_ll_at(
500
eb9e7bd40a8e do not hide pointers behind typedefs
Mike Becker <universe@uap-core.de>
parents: 499
diff changeset
730 struct cx_list_s const *list,
481
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
731 size_t index
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
732 ) {
439
9a5adedd6de6 add high-level function cxListAt()
Mike Becker <universe@uap-core.de>
parents: 438
diff changeset
733 cx_linked_list *ll = (cx_linked_list *) list;
447
87b2cdd668ed implement cx_ll_remove()
Mike Becker <universe@uap-core.de>
parents: 446
diff changeset
734 cx_linked_list_node *node = cx_ll_node_at(ll, index);
466
28bc3e10ac28 add special linked list implementation for storing pointers
Mike Becker <universe@uap-core.de>
parents: 457
diff changeset
735 return node == NULL ? NULL : node->payload;
28bc3e10ac28 add special linked list implementation for storing pointers
Mike Becker <universe@uap-core.de>
parents: 457
diff changeset
736 }
28bc3e10ac28 add special linked list implementation for storing pointers
Mike Becker <universe@uap-core.de>
parents: 457
diff changeset
737
699
35b2b99ee523 make list find return a negative value when elem not found
Mike Becker <universe@uap-core.de>
parents: 677
diff changeset
738 static ssize_t cx_ll_find(
500
eb9e7bd40a8e do not hide pointers behind typedefs
Mike Becker <universe@uap-core.de>
parents: 499
diff changeset
739 struct cx_list_s const *list,
489
af6be1e123aa add some const qualifiers
Mike Becker <universe@uap-core.de>
parents: 488
diff changeset
740 void const *elem
481
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
741 ) {
480
e3be53a3354f add cx_linked_list_find()
Mike Becker <universe@uap-core.de>
parents: 478
diff changeset
742 return cx_linked_list_find(((cx_linked_list *) list)->begin,
e3be53a3354f add cx_linked_list_find()
Mike Becker <universe@uap-core.de>
parents: 478
diff changeset
743 CX_LL_LOC_NEXT, CX_LL_LOC_DATA,
639
309e8b08c60e temporarily remove pointer lists - see #234
Mike Becker <universe@uap-core.de>
parents: 638
diff changeset
744 list->cmpfunc, elem);
466
28bc3e10ac28 add special linked list implementation for storing pointers
Mike Becker <universe@uap-core.de>
parents: 457
diff changeset
745 }
28bc3e10ac28 add special linked list implementation for storing pointers
Mike Becker <universe@uap-core.de>
parents: 457
diff changeset
746
500
eb9e7bd40a8e do not hide pointers behind typedefs
Mike Becker <universe@uap-core.de>
parents: 499
diff changeset
747 static void cx_ll_sort(struct cx_list_s *list) {
469
0458bff0b1cd add high level list sort and inlines method invocation functions
Mike Becker <universe@uap-core.de>
parents: 468
diff changeset
748 cx_linked_list *ll = (cx_linked_list *) list;
0458bff0b1cd add high level list sort and inlines method invocation functions
Mike Becker <universe@uap-core.de>
parents: 468
diff changeset
749 cx_linked_list_sort((void **) &ll->begin, (void **) &ll->end,
0458bff0b1cd add high level list sort and inlines method invocation functions
Mike Becker <universe@uap-core.de>
parents: 468
diff changeset
750 CX_LL_LOC_PREV, CX_LL_LOC_NEXT, CX_LL_LOC_DATA,
639
309e8b08c60e temporarily remove pointer lists - see #234
Mike Becker <universe@uap-core.de>
parents: 638
diff changeset
751 list->cmpfunc);
469
0458bff0b1cd add high level list sort and inlines method invocation functions
Mike Becker <universe@uap-core.de>
parents: 468
diff changeset
752 }
0458bff0b1cd add high level list sort and inlines method invocation functions
Mike Becker <universe@uap-core.de>
parents: 468
diff changeset
753
500
eb9e7bd40a8e do not hide pointers behind typedefs
Mike Becker <universe@uap-core.de>
parents: 499
diff changeset
754 static void cx_ll_reverse(struct cx_list_s *list) {
490
e66551b47466 add cxListReverse()
Mike Becker <universe@uap-core.de>
parents: 489
diff changeset
755 cx_linked_list *ll = (cx_linked_list *) list;
521
e5dc54131d55 add test for cxListCompare
Mike Becker <universe@uap-core.de>
parents: 509
diff changeset
756 cx_linked_list_reverse((void **) &ll->begin, (void **) &ll->end, CX_LL_LOC_PREV, CX_LL_LOC_NEXT);
490
e66551b47466 add cxListReverse()
Mike Becker <universe@uap-core.de>
parents: 489
diff changeset
757 }
e66551b47466 add cxListReverse()
Mike Becker <universe@uap-core.de>
parents: 489
diff changeset
758
488
9138acaa494b add cxLinkedListFromArray() and cxListCompare()
Mike Becker <universe@uap-core.de>
parents: 487
diff changeset
759 static int cx_ll_compare(
500
eb9e7bd40a8e do not hide pointers behind typedefs
Mike Becker <universe@uap-core.de>
parents: 499
diff changeset
760 struct cx_list_s const *list,
eb9e7bd40a8e do not hide pointers behind typedefs
Mike Becker <universe@uap-core.de>
parents: 499
diff changeset
761 struct cx_list_s const *other
488
9138acaa494b add cxLinkedListFromArray() and cxListCompare()
Mike Becker <universe@uap-core.de>
parents: 487
diff changeset
762 ) {
9138acaa494b add cxLinkedListFromArray() and cxListCompare()
Mike Becker <universe@uap-core.de>
parents: 487
diff changeset
763 cx_linked_list *left = (cx_linked_list *) list;
9138acaa494b add cxLinkedListFromArray() and cxListCompare()
Mike Becker <universe@uap-core.de>
parents: 487
diff changeset
764 cx_linked_list *right = (cx_linked_list *) other;
9138acaa494b add cxLinkedListFromArray() and cxListCompare()
Mike Becker <universe@uap-core.de>
parents: 487
diff changeset
765 return cx_linked_list_compare(left->begin, right->begin,
9138acaa494b add cxLinkedListFromArray() and cxListCompare()
Mike Becker <universe@uap-core.de>
parents: 487
diff changeset
766 CX_LL_LOC_NEXT, CX_LL_LOC_DATA,
639
309e8b08c60e temporarily remove pointer lists - see #234
Mike Becker <universe@uap-core.de>
parents: 638
diff changeset
767 list->cmpfunc);
488
9138acaa494b add cxLinkedListFromArray() and cxListCompare()
Mike Becker <universe@uap-core.de>
parents: 487
diff changeset
768 }
9138acaa494b add cxLinkedListFromArray() and cxListCompare()
Mike Becker <universe@uap-core.de>
parents: 487
diff changeset
769
630
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
770 static bool cx_ll_iter_valid(void const *it) {
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
771 struct cx_iterator_s const *iter = it;
495
2856c74e18ba add the feature to remove items during iteration
Mike Becker <universe@uap-core.de>
parents: 494
diff changeset
772 return iter->elem_handle != NULL;
494
6ce8cfa10a96 add iterator interface + linked list iterator
Mike Becker <universe@uap-core.de>
parents: 490
diff changeset
773 }
6ce8cfa10a96 add iterator interface + linked list iterator
Mike Becker <universe@uap-core.de>
parents: 490
diff changeset
774
630
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
775 static void cx_ll_iter_next(void *it) {
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
776 struct cx_iterator_base_s *itbase = it;
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
777 if (itbase->remove) {
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
778 itbase->remove = false;
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
779 struct cx_mut_iterator_s *iter = it;
664
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
780 struct cx_list_s *list = iter->src_handle;
495
2856c74e18ba add the feature to remove items during iteration
Mike Becker <universe@uap-core.de>
parents: 494
diff changeset
781 cx_linked_list *ll = iter->src_handle;
2856c74e18ba add the feature to remove items during iteration
Mike Becker <universe@uap-core.de>
parents: 494
diff changeset
782 cx_linked_list_node *node = iter->elem_handle;
2856c74e18ba add the feature to remove items during iteration
Mike Becker <universe@uap-core.de>
parents: 494
diff changeset
783 iter->elem_handle = node->next;
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
784 cx_invoke_destructor(list, node->payload);
495
2856c74e18ba add the feature to remove items during iteration
Mike Becker <universe@uap-core.de>
parents: 494
diff changeset
785 cx_linked_list_remove((void **) &ll->begin, (void **) &ll->end,
2856c74e18ba add the feature to remove items during iteration
Mike Becker <universe@uap-core.de>
parents: 494
diff changeset
786 CX_LL_LOC_PREV, CX_LL_LOC_NEXT, node);
664
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
787 list->size--;
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
788 cxFree(list->allocator, node);
495
2856c74e18ba add the feature to remove items during iteration
Mike Becker <universe@uap-core.de>
parents: 494
diff changeset
789 } else {
630
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
790 struct cx_iterator_s *iter = it;
495
2856c74e18ba add the feature to remove items during iteration
Mike Becker <universe@uap-core.de>
parents: 494
diff changeset
791 iter->index++;
2856c74e18ba add the feature to remove items during iteration
Mike Becker <universe@uap-core.de>
parents: 494
diff changeset
792 cx_linked_list_node *node = iter->elem_handle;
2856c74e18ba add the feature to remove items during iteration
Mike Becker <universe@uap-core.de>
parents: 494
diff changeset
793 iter->elem_handle = node->next;
2856c74e18ba add the feature to remove items during iteration
Mike Becker <universe@uap-core.de>
parents: 494
diff changeset
794 }
494
6ce8cfa10a96 add iterator interface + linked list iterator
Mike Becker <universe@uap-core.de>
parents: 490
diff changeset
795 }
6ce8cfa10a96 add iterator interface + linked list iterator
Mike Becker <universe@uap-core.de>
parents: 490
diff changeset
796
655
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
797 static void cx_ll_iter_prev(void *it) {
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
798 struct cx_iterator_base_s *itbase = it;
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
799 if (itbase->remove) {
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
800 itbase->remove = false;
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
801 struct cx_mut_iterator_s *iter = it;
664
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
802 struct cx_list_s *list = iter->src_handle;
655
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
803 cx_linked_list *ll = iter->src_handle;
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
804 cx_linked_list_node *node = iter->elem_handle;
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
805 iter->elem_handle = node->prev;
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
806 iter->index--;
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
807 cx_invoke_destructor(list, node->payload);
655
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
808 cx_linked_list_remove((void **) &ll->begin, (void **) &ll->end,
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
809 CX_LL_LOC_PREV, CX_LL_LOC_NEXT, node);
664
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
810 list->size--;
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
811 cxFree(list->allocator, node);
655
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
812 } else {
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
813 struct cx_iterator_s *iter = it;
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
814 iter->index--;
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
815 cx_linked_list_node *node = iter->elem_handle;
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
816 iter->elem_handle = node->prev;
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
817 }
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
818 }
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
819
630
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
820 static void *cx_ll_iter_current(void const *it) {
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
821 struct cx_iterator_s const *iter = it;
495
2856c74e18ba add the feature to remove items during iteration
Mike Becker <universe@uap-core.de>
parents: 494
diff changeset
822 cx_linked_list_node *node = iter->elem_handle;
494
6ce8cfa10a96 add iterator interface + linked list iterator
Mike Becker <universe@uap-core.de>
parents: 490
diff changeset
823 return node->payload;
6ce8cfa10a96 add iterator interface + linked list iterator
Mike Becker <universe@uap-core.de>
parents: 490
diff changeset
824 }
6ce8cfa10a96 add iterator interface + linked list iterator
Mike Becker <universe@uap-core.de>
parents: 490
diff changeset
825
630
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
826 static bool cx_ll_iter_flag_rm(void *it) {
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
827 struct cx_iterator_base_s *iter = it;
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
828 if (iter->mutating) {
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
829 iter->remove = true;
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
830 return true;
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
831 } else {
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
832 return false;
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
833 }
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
834 }
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
835
494
6ce8cfa10a96 add iterator interface + linked list iterator
Mike Becker <universe@uap-core.de>
parents: 490
diff changeset
836 static CxIterator cx_ll_iterator(
630
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
837 struct cx_list_s const *list,
655
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
838 size_t index,
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
839 bool backwards
494
6ce8cfa10a96 add iterator interface + linked list iterator
Mike Becker <universe@uap-core.de>
parents: 490
diff changeset
840 ) {
6ce8cfa10a96 add iterator interface + linked list iterator
Mike Becker <universe@uap-core.de>
parents: 490
diff changeset
841 CxIterator iter;
6ce8cfa10a96 add iterator interface + linked list iterator
Mike Becker <universe@uap-core.de>
parents: 490
diff changeset
842 iter.index = index;
495
2856c74e18ba add the feature to remove items during iteration
Mike Becker <universe@uap-core.de>
parents: 494
diff changeset
843 iter.src_handle = list;
2856c74e18ba add the feature to remove items during iteration
Mike Becker <universe@uap-core.de>
parents: 494
diff changeset
844 iter.elem_handle = cx_ll_node_at((cx_linked_list const *) list, index);
630
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
845 iter.base.valid = cx_ll_iter_valid;
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
846 iter.base.current = cx_ll_iter_current;
655
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
847 iter.base.next = backwards ? cx_ll_iter_prev : cx_ll_iter_next;
630
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
848 iter.base.flag_removal = cx_ll_iter_flag_rm;
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
849 iter.base.mutating = false;
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
850 iter.base.remove = false;
494
6ce8cfa10a96 add iterator interface + linked list iterator
Mike Becker <universe@uap-core.de>
parents: 490
diff changeset
851 return iter;
6ce8cfa10a96 add iterator interface + linked list iterator
Mike Becker <universe@uap-core.de>
parents: 490
diff changeset
852 }
6ce8cfa10a96 add iterator interface + linked list iterator
Mike Becker <universe@uap-core.de>
parents: 490
diff changeset
853
499
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
854 static int cx_ll_insert_iter(
630
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
855 CxMutIterator *iter,
499
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
856 void const *elem,
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
857 int prepend
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
858 ) {
500
eb9e7bd40a8e do not hide pointers behind typedefs
Mike Becker <universe@uap-core.de>
parents: 499
diff changeset
859 struct cx_list_s *list = iter->src_handle;
499
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
860 cx_linked_list_node *node = iter->elem_handle;
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
861 if (node != NULL) {
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
862 assert(prepend >= 0 && prepend <= 1);
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
863 cx_linked_list_node *choice[2] = {node, node->prev};
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
864 int result = cx_ll_insert_at(list, choice[prepend], elem);
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
865 iter->index += prepend * (0 == result);
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
866 return result;
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
867 } else {
641
d402fead3386 add new pointer list wrapper - resolves #234
Mike Becker <universe@uap-core.de>
parents: 640
diff changeset
868 int result = cx_ll_insert_element(list, list->size, elem);
499
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
869 iter->index = list->size;
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
870 return result;
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
871 }
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
872 }
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
873
524
e98b09018d32 remove list destructor
Mike Becker <universe@uap-core.de>
parents: 521
diff changeset
874 static void cx_ll_destructor(CxList *list) {
e98b09018d32 remove list destructor
Mike Becker <universe@uap-core.de>
parents: 521
diff changeset
875 cx_linked_list *ll = (cx_linked_list *) list;
e98b09018d32 remove list destructor
Mike Becker <universe@uap-core.de>
parents: 521
diff changeset
876
e98b09018d32 remove list destructor
Mike Becker <universe@uap-core.de>
parents: 521
diff changeset
877 cx_linked_list_node *node = ll->begin;
e98b09018d32 remove list destructor
Mike Becker <universe@uap-core.de>
parents: 521
diff changeset
878 while (node) {
708
1caed6c9ba68 fix inconsistent destructor requirements for list and map classes
Mike Becker <universe@uap-core.de>
parents: 703
diff changeset
879 cx_invoke_destructor(list, node->payload);
524
e98b09018d32 remove list destructor
Mike Becker <universe@uap-core.de>
parents: 521
diff changeset
880 void *next = node->next;
e98b09018d32 remove list destructor
Mike Becker <universe@uap-core.de>
parents: 521
diff changeset
881 cxFree(list->allocator, node);
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Mike Becker <universe@uap-core.de>
parents: 521
diff changeset
882 node = next;
e98b09018d32 remove list destructor
Mike Becker <universe@uap-core.de>
parents: 521
diff changeset
883 }
708
1caed6c9ba68 fix inconsistent destructor requirements for list and map classes
Mike Becker <universe@uap-core.de>
parents: 703
diff changeset
884
1caed6c9ba68 fix inconsistent destructor requirements for list and map classes
Mike Becker <universe@uap-core.de>
parents: 703
diff changeset
885 cxFree(list->allocator, list);
524
e98b09018d32 remove list destructor
Mike Becker <universe@uap-core.de>
parents: 521
diff changeset
886 }
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Mike Becker <universe@uap-core.de>
parents: 521
diff changeset
887
451
db06dda7ac4d make cx_linked_list_class static
Mike Becker <universe@uap-core.de>
parents: 448
diff changeset
888 static cx_list_class cx_linked_list_class = {
524
e98b09018d32 remove list destructor
Mike Becker <universe@uap-core.de>
parents: 521
diff changeset
889 cx_ll_destructor,
641
d402fead3386 add new pointer list wrapper - resolves #234
Mike Becker <universe@uap-core.de>
parents: 640
diff changeset
890 cx_ll_insert_element,
638
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
891 cx_ll_insert_array,
499
3dc9075df822 add cxListInsertAfter() and cxListInsertBefore()
Mike Becker <universe@uap-core.de>
parents: 495
diff changeset
892 cx_ll_insert_iter,
398
8d506ed6c1c0 adds first draft for linked list implementation
Mike Becker <universe@uap-core.de>
parents:
diff changeset
893 cx_ll_remove,
664
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
894 cx_ll_clear,
647
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 641
diff changeset
895 cx_ll_swap,
439
9a5adedd6de6 add high-level function cxListAt()
Mike Becker <universe@uap-core.de>
parents: 438
diff changeset
896 cx_ll_at,
404
86ebc3745e62 adds cxListLast
Mike Becker <universe@uap-core.de>
parents: 403
diff changeset
897 cx_ll_find,
488
9138acaa494b add cxLinkedListFromArray() and cxListCompare()
Mike Becker <universe@uap-core.de>
parents: 487
diff changeset
898 cx_ll_sort,
490
e66551b47466 add cxListReverse()
Mike Becker <universe@uap-core.de>
parents: 489
diff changeset
899 cx_ll_compare,
494
6ce8cfa10a96 add iterator interface + linked list iterator
Mike Becker <universe@uap-core.de>
parents: 490
diff changeset
900 cx_ll_reverse,
630
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
901 cx_ll_iterator,
398
8d506ed6c1c0 adds first draft for linked list implementation
Mike Becker <universe@uap-core.de>
parents:
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902 };
8d506ed6c1c0 adds first draft for linked list implementation
Mike Becker <universe@uap-core.de>
parents:
diff changeset
903
670
4ad8ea3aee49 allow NULL for allocator and comparator
Mike Becker <universe@uap-core.de>
parents: 667
diff changeset
904 CxList *cxLinkedListCreate(
508
8aea65ae1eaf #168 - add attributes and const
Mike Becker <universe@uap-core.de>
parents: 503
diff changeset
905 CxAllocator const *allocator,
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
906 cx_compare_func comparator,
481
eef025d82a34 add several new linked list functions
Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
907 size_t item_size
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Mike Becker <universe@uap-core.de>
parents: 480
diff changeset
908 ) {
670
4ad8ea3aee49 allow NULL for allocator and comparator
Mike Becker <universe@uap-core.de>
parents: 667
diff changeset
909 if (allocator == NULL) {
4ad8ea3aee49 allow NULL for allocator and comparator
Mike Becker <universe@uap-core.de>
parents: 667
diff changeset
910 allocator = cxDefaultAllocator;
4ad8ea3aee49 allow NULL for allocator and comparator
Mike Becker <universe@uap-core.de>
parents: 667
diff changeset
911 }
4ad8ea3aee49 allow NULL for allocator and comparator
Mike Becker <universe@uap-core.de>
parents: 667
diff changeset
912
503
a89857072ace add new destructor API and apply it to CxList
Mike Becker <universe@uap-core.de>
parents: 500
diff changeset
913 cx_linked_list *list = cxCalloc(allocator, 1, sizeof(cx_linked_list));
528
4fbfac557df8 #179 improve API for list content destruction
Mike Becker <universe@uap-core.de>
parents: 524
diff changeset
914 if (list == NULL) return NULL;
398
8d506ed6c1c0 adds first draft for linked list implementation
Mike Becker <universe@uap-core.de>
parents:
diff changeset
915
435
0fe204d50f54 change inheritance model for lists
Mike Becker <universe@uap-core.de>
parents: 428
diff changeset
916 list->base.cl = &cx_linked_list_class;
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Mike Becker <universe@uap-core.de>
parents: 428
diff changeset
917 list->base.allocator = allocator;
0fe204d50f54 change inheritance model for lists
Mike Becker <universe@uap-core.de>
parents: 428
diff changeset
918 list->base.cmpfunc = comparator;
406
9cbea761fbf7 adds cxLinkedListWrap and cxLinkedListRecalculateSize
Mike Becker <universe@uap-core.de>
parents: 404
diff changeset
919
667
2f88a7c13a28 add CX_STORE_POINTERS special "item size" for lists
Mike Becker <universe@uap-core.de>
parents: 666
diff changeset
920 if (item_size > 0) {
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
921 list->base.item_size = item_size;
667
2f88a7c13a28 add CX_STORE_POINTERS special "item size" for lists
Mike Becker <universe@uap-core.de>
parents: 666
diff changeset
922 } else {
2f88a7c13a28 add CX_STORE_POINTERS special "item size" for lists
Mike Becker <universe@uap-core.de>
parents: 666
diff changeset
923 cxListStorePointers((CxList *) list);
2f88a7c13a28 add CX_STORE_POINTERS special "item size" for lists
Mike Becker <universe@uap-core.de>
parents: 666
diff changeset
924 }
2f88a7c13a28 add CX_STORE_POINTERS special "item size" for lists
Mike Becker <universe@uap-core.de>
parents: 666
diff changeset
925
500
eb9e7bd40a8e do not hide pointers behind typedefs
Mike Becker <universe@uap-core.de>
parents: 499
diff changeset
926 return (CxList *) list;
406
9cbea761fbf7 adds cxLinkedListWrap and cxLinkedListRecalculateSize
Mike Becker <universe@uap-core.de>
parents: 404
diff changeset
927 }

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