src/array_list.c

Sun, 14 Jan 2024 13:13:12 +0100

author
Mike Becker <universe@uap-core.de>
date
Sun, 14 Jan 2024 13:13:12 +0100
changeset 805
26500fc24058
parent 804
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child 807
c8d692131b1e
permissions
-rw-r--r--

add constant for reading out printf sbo size - relates to #343

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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/array_list.h"
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30 #include "cx/compare.h"
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31 #include <assert.h>
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32 #include <string.h>
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33
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34 // LOW LEVEL ARRAY LIST FUNCTIONS
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35
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36 enum cx_array_copy_result cx_array_copy(
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37 void **target,
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38 size_t *size,
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39 size_t *capacity,
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40 size_t index,
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41 void const *src,
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42 size_t elem_size,
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43 size_t elem_count,
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44 struct cx_array_reallocator_s *reallocator
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45 ) {
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46 // assert pointers
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47 assert(target != NULL);
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48 assert(size != NULL);
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49 assert(src != NULL);
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50
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51 // determine capacity
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52 size_t cap = capacity == NULL ? *size : *capacity;
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53
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54 // check if resize is required
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55 size_t minsize = index + elem_count;
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56 size_t newsize = *size < minsize ? minsize : *size;
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57 bool needrealloc = newsize > cap;
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58
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59 // reallocate if possible
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60 if (needrealloc) {
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61 // a reallocator and a capacity variable must be available
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62 if (reallocator == NULL || capacity == NULL) {
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63 return CX_ARRAY_COPY_REALLOC_NOT_SUPPORTED;
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64 }
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65
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66 // check, if we need to repair the src pointer
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67 uintptr_t targetaddr = (uintptr_t) *target;
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68 uintptr_t srcaddr = (uintptr_t) src;
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69 bool repairsrc = targetaddr <= srcaddr
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70 && srcaddr < targetaddr + cap * elem_size;
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71
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72 // calculate new capacity (next number divisible by 16)
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73 cap = newsize - (newsize % 16) + 16;
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74 assert(cap > newsize);
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75
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76 // perform reallocation
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77 void *newmem = reallocator->realloc(
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78 *target, cap, elem_size, reallocator
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79 );
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80 if (newmem == NULL) {
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81 return CX_ARRAY_COPY_REALLOC_FAILED;
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82 }
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83
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84 // repair src pointer, if necessary
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85 if (repairsrc) {
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86 src = ((char *) newmem) + (srcaddr - targetaddr);
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87 }
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88
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89 // store new pointer and capacity
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90 *target = newmem;
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91 *capacity = cap;
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92 }
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93
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94 // determine target pointer
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95 char *start = *target;
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96 start += index * elem_size;
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97
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98 // copy elements and set new size
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99 memmove(start, src, elem_count * elem_size);
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100 *size = newsize;
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101
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102 // return successfully
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103 return CX_ARRAY_COPY_SUCCESS;
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104 }
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105
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106 #ifndef CX_ARRAY_SWAP_SBO_SIZE
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107 #define CX_ARRAY_SWAP_SBO_SIZE 128
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108 #endif
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109
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110 bool CX_DISABLE_ARRAY_LIST_SWAP_SBO = false;
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111
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112 void cx_array_swap(
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113 void *arr,
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114 size_t elem_size,
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115 size_t idx1,
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116 size_t idx2
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117 ) {
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118 assert(arr != NULL);
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119
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120 // short circuit
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121 if (idx1 == idx2) return;
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122
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123 char sbo_mem[CX_ARRAY_SWAP_SBO_SIZE];
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124 void *tmp;
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125
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126 // decide if we can use the local buffer
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127 if (elem_size > CX_ARRAY_SWAP_SBO_SIZE || CX_DISABLE_ARRAY_LIST_SWAP_SBO) {
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128 tmp = malloc(elem_size);
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129 // we don't want to enforce error handling
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130 if (tmp == NULL) abort();
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131 } else {
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132 tmp = sbo_mem;
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133 }
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134
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135 // calculate memory locations
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136 char *left = arr, *right = arr;
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137 left += idx1 * elem_size;
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138 right += idx2 * elem_size;
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139
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140 // three-way swap
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141 memcpy(tmp, left, elem_size);
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142 memcpy(left, right, elem_size);
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143 memcpy(right, tmp, elem_size);
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144
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145 // free dynamic memory, if it was needed
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146 if (tmp != sbo_mem) {
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147 free(tmp);
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148 }
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149 }
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150
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151 // HIGH LEVEL ARRAY LIST FUNCTIONS
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152
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153 typedef struct {
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154 struct cx_list_s base;
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155 void *data;
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156 size_t capacity;
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157 struct cx_array_reallocator_s reallocator;
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158 } cx_array_list;
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159
610
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160 static void *cx_arl_realloc(
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161 void *array,
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162 size_t capacity,
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163 size_t elem_size,
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164 struct cx_array_reallocator_s *alloc
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165 ) {
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166 // retrieve the pointer to the list allocator
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167 CxAllocator const *al = alloc->ptr1;
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168
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169 // use the list allocator to reallocate the memory
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170 return cxRealloc(al, array, capacity * elem_size);
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171 }
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172
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173 static void cx_arl_destructor(struct cx_list_s *list) {
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174 cx_array_list *arl = (cx_array_list *) list;
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175
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176 char *ptr = arl->data;
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177
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178 if (list->simple_destructor) {
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179 for (size_t i = 0; i < list->size; i++) {
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180 cx_invoke_simple_destructor(list, ptr);
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181 ptr += list->item_size;
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182 }
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183 }
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184 if (list->advanced_destructor) {
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185 for (size_t i = 0; i < list->size; i++) {
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186 cx_invoke_advanced_destructor(list, ptr);
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187 ptr += list->item_size;
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188 }
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189 }
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190
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191 cxFree(list->allocator, arl->data);
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192 cxFree(list->allocator, list);
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193 }
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194
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195 static size_t cx_arl_insert_array(
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196 struct cx_list_s *list,
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197 size_t index,
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198 void const *array,
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199 size_t n
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200 ) {
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201 // out of bounds and special case check
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202 if (index > list->size || n == 0) return 0;
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203
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204 // get a correctly typed pointer to the list
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205 cx_array_list *arl = (cx_array_list *) list;
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206
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207 // do we need to move some elements?
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208 if (index < list->size) {
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209 char const *first_to_move = (char const *) arl->data;
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210 first_to_move += index * list->item_size;
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211 size_t elems_to_move = list->size - index;
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212 size_t start_of_moved = index + n;
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213
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214 if (CX_ARRAY_COPY_SUCCESS != cx_array_copy(
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215 &arl->data,
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216 &list->size,
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217 &arl->capacity,
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218 start_of_moved,
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219 first_to_move,
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220 list->item_size,
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221 elems_to_move,
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222 &arl->reallocator
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223 )) {
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224 // if moving existing elems is unsuccessful, abort
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225 return 0;
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226 }
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227 }
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228
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229 // note that if we had to move the elements, the following operation
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230 // is guaranteed to succeed, because we have the memory already allocated
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231 // therefore, it is impossible to leave this function with an invalid array
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232
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233 // place the new elements
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234 if (CX_ARRAY_COPY_SUCCESS == cx_array_copy(
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235 &arl->data,
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236 &list->size,
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237 &arl->capacity,
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238 index,
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239 array,
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240 list->item_size,
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241 n,
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242 &arl->reallocator
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243 )) {
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244 return n;
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245 } else {
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246 // array list implementation is "all or nothing"
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247 return 0;
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248 }
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249 }
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250
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251 static int cx_arl_insert_element(
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252 struct cx_list_s *list,
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253 size_t index,
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254 void const *element
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255 ) {
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256 return 1 != cx_arl_insert_array(list, index, element, 1);
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257 }
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258
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259 static int cx_arl_insert_iter(
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260 struct cx_mut_iterator_s *iter,
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261 void const *elem,
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262 int prepend
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263 ) {
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264 struct cx_list_s *list = iter->src_handle;
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265 if (iter->index < list->size) {
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266 int result = cx_arl_insert_element(
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267 list,
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268 iter->index + 1 - prepend,
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269 elem
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270 );
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271 if (result == 0 && prepend != 0) {
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272 iter->index++;
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273 iter->elem_handle = ((char *) iter->elem_handle) + list->item_size;
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274 }
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275 return result;
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276 } else {
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277 int result = cx_arl_insert_element(list, list->size, elem);
619
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278 iter->index = list->size;
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279 return result;
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280 }
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281 }
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282
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283 static int cx_arl_remove(
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284 struct cx_list_s *list,
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285 size_t index
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286 ) {
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287 cx_array_list *arl = (cx_array_list *) list;
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288
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289 // out-of-bounds check
613
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290 if (index >= list->size) {
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291 return 1;
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292 }
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293
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294 // content destruction
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295 cx_invoke_destructor(list, ((char *) arl->data) + index * list->item_size);
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296
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297 // short-circuit removal of last element
624
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diff changeset
298 if (index == list->size - 1) {
b0bdff7d8203 #219: cx_arl_remove short-circuit for last element
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parents: 623
diff changeset
299 list->size--;
b0bdff7d8203 #219: cx_arl_remove short-circuit for last element
Mike Becker <universe@uap-core.de>
parents: 623
diff changeset
300 return 0;
b0bdff7d8203 #219: cx_arl_remove short-circuit for last element
Mike Becker <universe@uap-core.de>
parents: 623
diff changeset
301 }
613
85c08391a090 #219 array list: implement remove
Mike Becker <universe@uap-core.de>
parents: 612
diff changeset
302
628
1e2be40f0cb5 use //-style single line comments everywhere
Mike Becker <universe@uap-core.de>
parents: 627
diff changeset
303 // just move the elements starting at index to the left
613
85c08391a090 #219 array list: implement remove
Mike Becker <universe@uap-core.de>
parents: 612
diff changeset
304 int result = cx_array_copy(
85c08391a090 #219 array list: implement remove
Mike Becker <universe@uap-core.de>
parents: 612
diff changeset
305 &arl->data,
85c08391a090 #219 array list: implement remove
Mike Becker <universe@uap-core.de>
parents: 612
diff changeset
306 &list->size,
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
307 &arl->capacity,
613
85c08391a090 #219 array list: implement remove
Mike Becker <universe@uap-core.de>
parents: 612
diff changeset
308 index,
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
309 ((char *) arl->data) + (index + 1) * list->item_size,
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
310 list->item_size,
626
254cc61c71a0 #219: fix off-by-one bug in cx_arl_remove()
Mike Becker <universe@uap-core.de>
parents: 625
diff changeset
311 list->size - index - 1,
613
85c08391a090 #219 array list: implement remove
Mike Becker <universe@uap-core.de>
parents: 612
diff changeset
312 &arl->reallocator
85c08391a090 #219 array list: implement remove
Mike Becker <universe@uap-core.de>
parents: 612
diff changeset
313 );
85c08391a090 #219 array list: implement remove
Mike Becker <universe@uap-core.de>
parents: 612
diff changeset
314 if (result == 0) {
628
1e2be40f0cb5 use //-style single line comments everywhere
Mike Becker <universe@uap-core.de>
parents: 627
diff changeset
315 // decrease the size
613
85c08391a090 #219 array list: implement remove
Mike Becker <universe@uap-core.de>
parents: 612
diff changeset
316 list->size--;
85c08391a090 #219 array list: implement remove
Mike Becker <universe@uap-core.de>
parents: 612
diff changeset
317 }
85c08391a090 #219 array list: implement remove
Mike Becker <universe@uap-core.de>
parents: 612
diff changeset
318 return result;
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
319 }
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
320
664
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
321 static void cx_arl_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
322 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
323
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
324 cx_array_list *arl = (cx_array_list *) list;
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
325 char *ptr = arl->data;
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
326
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
327 if (list->simple_destructor) {
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
328 for (size_t i = 0; i < list->size; i++) {
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
329 cx_invoke_simple_destructor(list, ptr);
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
330 ptr += list->item_size;
664
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
331 }
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
332 }
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
333 if (list->advanced_destructor) {
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
334 for (size_t i = 0; i < list->size; i++) {
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
335 cx_invoke_advanced_destructor(list, ptr);
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
336 ptr += list->item_size;
664
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
337 }
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
338 }
666
b5dd654deb3b add unit test for cxListClear + fix destructor functions not always invoked with the correct pointer
Mike Becker <universe@uap-core.de>
parents: 664
diff changeset
339
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
340 memset(arl->data, 0, list->size * list->item_size);
666
b5dd654deb3b add unit test for cxListClear + fix destructor functions not always invoked with the correct pointer
Mike Becker <universe@uap-core.de>
parents: 664
diff changeset
341 list->size = 0;
664
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
342 }
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
343
647
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 643
diff changeset
344 static int cx_arl_swap(
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 643
diff changeset
345 struct cx_list_s *list,
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 643
diff changeset
346 size_t i,
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 643
diff changeset
347 size_t j
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 643
diff changeset
348 ) {
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 643
diff changeset
349 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: 643
diff changeset
350 cx_array_list *arl = (cx_array_list *) list;
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
351 cx_array_swap(arl->data, list->item_size, i, j);
647
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 643
diff changeset
352 return 0;
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 643
diff changeset
353 }
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 643
diff changeset
354
610
de5d3ee6435f #219 array list: implement add and at
Mike Becker <universe@uap-core.de>
parents: 607
diff changeset
355 static void *cx_arl_at(
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
356 struct cx_list_s const *list,
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
357 size_t index
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
358 ) {
610
de5d3ee6435f #219 array list: implement add and at
Mike Becker <universe@uap-core.de>
parents: 607
diff changeset
359 if (index < list->size) {
de5d3ee6435f #219 array list: implement add and at
Mike Becker <universe@uap-core.de>
parents: 607
diff changeset
360 cx_array_list const *arl = (cx_array_list const *) list;
de5d3ee6435f #219 array list: implement add and at
Mike Becker <universe@uap-core.de>
parents: 607
diff changeset
361 char *space = arl->data;
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
362 return space + index * list->item_size;
610
de5d3ee6435f #219 array list: implement add and at
Mike Becker <universe@uap-core.de>
parents: 607
diff changeset
363 } else {
de5d3ee6435f #219 array list: implement add and at
Mike Becker <universe@uap-core.de>
parents: 607
diff changeset
364 return NULL;
de5d3ee6435f #219 array list: implement add and at
Mike Becker <universe@uap-core.de>
parents: 607
diff changeset
365 }
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
366 }
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
367
764
ccbdbd088455 add cxListFindRemove and cx_linked_list_find_node
Mike Becker <universe@uap-core.de>
parents: 763
diff changeset
368 static ssize_t cx_arl_find_remove(
ccbdbd088455 add cxListFindRemove and cx_linked_list_find_node
Mike Becker <universe@uap-core.de>
parents: 763
diff changeset
369 struct cx_list_s *list,
ccbdbd088455 add cxListFindRemove and cx_linked_list_find_node
Mike Becker <universe@uap-core.de>
parents: 763
diff changeset
370 void const *elem,
ccbdbd088455 add cxListFindRemove and cx_linked_list_find_node
Mike Becker <universe@uap-core.de>
parents: 763
diff changeset
371 bool remove
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
372 ) {
660
4738a9065907 add some asserts
Mike Becker <universe@uap-core.de>
parents: 655
diff changeset
373 assert(list->cmpfunc != NULL);
699
35b2b99ee523 make list find return a negative value when elem not found
Mike Becker <universe@uap-core.de>
parents: 678
diff changeset
374 assert(list->size < SIZE_MAX / 2);
614
7aaec630cf15 #219 array list: implement find
Mike Becker <universe@uap-core.de>
parents: 613
diff changeset
375 char *cur = ((cx_array_list const *) list)->data;
7aaec630cf15 #219 array list: implement find
Mike Becker <universe@uap-core.de>
parents: 613
diff changeset
376
699
35b2b99ee523 make list find return a negative value when elem not found
Mike Becker <universe@uap-core.de>
parents: 678
diff changeset
377 for (ssize_t i = 0; i < (ssize_t) list->size; i++) {
614
7aaec630cf15 #219 array list: implement find
Mike Becker <universe@uap-core.de>
parents: 613
diff changeset
378 if (0 == list->cmpfunc(elem, cur)) {
764
ccbdbd088455 add cxListFindRemove and cx_linked_list_find_node
Mike Becker <universe@uap-core.de>
parents: 763
diff changeset
379 if (remove) {
ccbdbd088455 add cxListFindRemove and cx_linked_list_find_node
Mike Becker <universe@uap-core.de>
parents: 763
diff changeset
380 if (0 == cx_arl_remove(list, i)) {
ccbdbd088455 add cxListFindRemove and cx_linked_list_find_node
Mike Becker <universe@uap-core.de>
parents: 763
diff changeset
381 return i;
ccbdbd088455 add cxListFindRemove and cx_linked_list_find_node
Mike Becker <universe@uap-core.de>
parents: 763
diff changeset
382 } else {
ccbdbd088455 add cxListFindRemove and cx_linked_list_find_node
Mike Becker <universe@uap-core.de>
parents: 763
diff changeset
383 return -1;
ccbdbd088455 add cxListFindRemove and cx_linked_list_find_node
Mike Becker <universe@uap-core.de>
parents: 763
diff changeset
384 }
ccbdbd088455 add cxListFindRemove and cx_linked_list_find_node
Mike Becker <universe@uap-core.de>
parents: 763
diff changeset
385 } else {
ccbdbd088455 add cxListFindRemove and cx_linked_list_find_node
Mike Becker <universe@uap-core.de>
parents: 763
diff changeset
386 return i;
ccbdbd088455 add cxListFindRemove and cx_linked_list_find_node
Mike Becker <universe@uap-core.de>
parents: 763
diff changeset
387 }
614
7aaec630cf15 #219 array list: implement find
Mike Becker <universe@uap-core.de>
parents: 613
diff changeset
388 }
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
389 cur += list->item_size;
614
7aaec630cf15 #219 array list: implement find
Mike Becker <universe@uap-core.de>
parents: 613
diff changeset
390 }
7aaec630cf15 #219 array list: implement find
Mike Becker <universe@uap-core.de>
parents: 613
diff changeset
391
699
35b2b99ee523 make list find return a negative value when elem not found
Mike Becker <universe@uap-core.de>
parents: 678
diff changeset
392 return -1;
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
393 }
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
394
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
395 static void cx_arl_sort(struct cx_list_s *list) {
660
4738a9065907 add some asserts
Mike Becker <universe@uap-core.de>
parents: 655
diff changeset
396 assert(list->cmpfunc != NULL);
615
b52b66dcd44b #219 array list: implement sort
Mike Becker <universe@uap-core.de>
parents: 614
diff changeset
397 qsort(((cx_array_list *) list)->data,
b52b66dcd44b #219 array list: implement sort
Mike Becker <universe@uap-core.de>
parents: 614
diff changeset
398 list->size,
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
399 list->item_size,
615
b52b66dcd44b #219 array list: implement sort
Mike Becker <universe@uap-core.de>
parents: 614
diff changeset
400 list->cmpfunc
b52b66dcd44b #219 array list: implement sort
Mike Becker <universe@uap-core.de>
parents: 614
diff changeset
401 );
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
402 }
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
403
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
404 static int cx_arl_compare(
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
405 struct cx_list_s const *list,
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
406 struct cx_list_s const *other
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
407 ) {
660
4738a9065907 add some asserts
Mike Becker <universe@uap-core.de>
parents: 655
diff changeset
408 assert(list->cmpfunc != NULL);
622
3d93cd78aa20 #219 array list: implement compare member func
Mike Becker <universe@uap-core.de>
parents: 620
diff changeset
409 if (list->size == other->size) {
3d93cd78aa20 #219 array list: implement compare member func
Mike Becker <universe@uap-core.de>
parents: 620
diff changeset
410 char const *left = ((cx_array_list const *) list)->data;
3d93cd78aa20 #219 array list: implement compare member func
Mike Becker <universe@uap-core.de>
parents: 620
diff changeset
411 char const *right = ((cx_array_list const *) other)->data;
3d93cd78aa20 #219 array list: implement compare member func
Mike Becker <universe@uap-core.de>
parents: 620
diff changeset
412 for (size_t i = 0; i < list->size; i++) {
3d93cd78aa20 #219 array list: implement compare member func
Mike Becker <universe@uap-core.de>
parents: 620
diff changeset
413 int d = list->cmpfunc(left, right);
3d93cd78aa20 #219 array list: implement compare member func
Mike Becker <universe@uap-core.de>
parents: 620
diff changeset
414 if (d != 0) {
3d93cd78aa20 #219 array list: implement compare member func
Mike Becker <universe@uap-core.de>
parents: 620
diff changeset
415 return d;
3d93cd78aa20 #219 array list: implement compare member func
Mike Becker <universe@uap-core.de>
parents: 620
diff changeset
416 }
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
417 left += list->item_size;
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
418 right += other->item_size;
622
3d93cd78aa20 #219 array list: implement compare member func
Mike Becker <universe@uap-core.de>
parents: 620
diff changeset
419 }
3d93cd78aa20 #219 array list: implement compare member func
Mike Becker <universe@uap-core.de>
parents: 620
diff changeset
420 return 0;
3d93cd78aa20 #219 array list: implement compare member func
Mike Becker <universe@uap-core.de>
parents: 620
diff changeset
421 } else {
3d93cd78aa20 #219 array list: implement compare member func
Mike Becker <universe@uap-core.de>
parents: 620
diff changeset
422 return list->size < other->size ? -1 : 1;
3d93cd78aa20 #219 array list: implement compare member func
Mike Becker <universe@uap-core.de>
parents: 620
diff changeset
423 }
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
424 }
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
425
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
426 static void cx_arl_reverse(struct cx_list_s *list) {
623
21082350a590 #219 array list: implement reverse
Mike Becker <universe@uap-core.de>
parents: 622
diff changeset
427 if (list->size < 2) return;
21082350a590 #219 array list: implement reverse
Mike Becker <universe@uap-core.de>
parents: 622
diff changeset
428 void *data = ((cx_array_list const *) list)->data;
21082350a590 #219 array list: implement reverse
Mike Becker <universe@uap-core.de>
parents: 622
diff changeset
429 size_t half = list->size / 2;
21082350a590 #219 array list: implement reverse
Mike Becker <universe@uap-core.de>
parents: 622
diff changeset
430 for (size_t i = 0; i < half; i++) {
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
431 cx_array_swap(data, list->item_size, i, list->size - 1 - i);
623
21082350a590 #219 array list: implement reverse
Mike Becker <universe@uap-core.de>
parents: 622
diff changeset
432 }
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
433 }
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
434
630
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
435 static bool cx_arl_iter_valid(void const *it) {
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
436 struct cx_iterator_s const *iter = it;
616
af7d8a29fbc5 #219 array list: add iterator
Mike Becker <universe@uap-core.de>
parents: 615
diff changeset
437 struct cx_list_s const *list = iter->src_handle;
af7d8a29fbc5 #219 array list: add iterator
Mike Becker <universe@uap-core.de>
parents: 615
diff changeset
438 return iter->index < list->size;
af7d8a29fbc5 #219 array list: add iterator
Mike Becker <universe@uap-core.de>
parents: 615
diff changeset
439 }
af7d8a29fbc5 #219 array list: add iterator
Mike Becker <universe@uap-core.de>
parents: 615
diff changeset
440
630
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
441 static void *cx_arl_iter_current(void const *it) {
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
442 struct cx_iterator_s const *iter = it;
616
af7d8a29fbc5 #219 array list: add iterator
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443 return iter->elem_handle;
af7d8a29fbc5 #219 array list: add iterator
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444 }
af7d8a29fbc5 #219 array list: add iterator
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parents: 615
diff changeset
445
630
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diff changeset
446 static void cx_arl_iter_next(void *it) {
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parents: 629
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447 struct cx_iterator_base_s *itbase = it;
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448 if (itbase->remove) {
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parents: 629
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449 struct cx_mut_iterator_s *iter = it;
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450 itbase->remove = false;
616
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451 cx_arl_remove(iter->src_handle, iter->index);
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parents: 615
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452 } else {
630
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453 struct cx_iterator_s *iter = it;
616
af7d8a29fbc5 #219 array list: add iterator
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diff changeset
454 iter->index++;
620
f220695aded6 #219 improve cx_arl_iter_next
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parents: 619
diff changeset
455 iter->elem_handle =
f220695aded6 #219 improve cx_arl_iter_next
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parents: 619
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456 ((char *) iter->elem_handle)
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
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parents: 676
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457 + ((struct cx_list_s const *) iter->src_handle)->item_size;
616
af7d8a29fbc5 #219 array list: add iterator
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458 }
af7d8a29fbc5 #219 array list: add iterator
Mike Becker <universe@uap-core.de>
parents: 615
diff changeset
459 }
af7d8a29fbc5 #219 array list: add iterator
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parents: 615
diff changeset
460
655
7340c4255f1f implement backwards iterator - fixes #238
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461 static void cx_arl_iter_prev(void *it) {
7340c4255f1f implement backwards iterator - fixes #238
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parents: 654
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462 struct cx_iterator_base_s *itbase = it;
7340c4255f1f implement backwards iterator - fixes #238
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parents: 654
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463 struct cx_mut_iterator_s *iter = it;
7340c4255f1f implement backwards iterator - fixes #238
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parents: 654
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464 cx_array_list *const list = iter->src_handle;
7340c4255f1f implement backwards iterator - fixes #238
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parents: 654
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465 if (itbase->remove) {
7340c4255f1f implement backwards iterator - fixes #238
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parents: 654
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466 itbase->remove = false;
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467 cx_arl_remove(iter->src_handle, iter->index);
7340c4255f1f implement backwards iterator - fixes #238
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parents: 654
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468 }
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parents: 654
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469 iter->index--;
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parents: 654
diff changeset
470 if (iter->index < list->base.size) {
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parents: 654
diff changeset
471 iter->elem_handle = ((char *) list->data)
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
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parents: 676
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472 + iter->index * list->base.item_size;
655
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
473 }
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
474 }
7340c4255f1f implement backwards iterator - fixes #238
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parents: 654
diff changeset
475
630
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diff changeset
476 static bool cx_arl_iter_flag_rm(void *it) {
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parents: 629
diff changeset
477 struct cx_iterator_base_s *iter = it;
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parents: 629
diff changeset
478 if (iter->mutating) {
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parents: 629
diff changeset
479 iter->remove = true;
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480 return true;
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parents: 629
diff changeset
481 } else {
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482 return false;
ac5e7f789048 separate iterators and mutating iterators
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parents: 629
diff changeset
483 }
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parents: 629
diff changeset
484 }
ac5e7f789048 separate iterators and mutating iterators
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parents: 629
diff changeset
485
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
486 static struct cx_iterator_s cx_arl_iterator(
630
ac5e7f789048 separate iterators and mutating iterators
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diff changeset
487 struct cx_list_s const *list,
655
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parents: 654
diff changeset
488 size_t index,
7340c4255f1f implement backwards iterator - fixes #238
Mike Becker <universe@uap-core.de>
parents: 654
diff changeset
489 bool backwards
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
490 ) {
2d99e978dc34 implement array list ctor and dtor
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parents: 606
diff changeset
491 struct cx_iterator_s iter;
2d99e978dc34 implement array list ctor and dtor
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parents: 606
diff changeset
492
616
af7d8a29fbc5 #219 array list: add iterator
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diff changeset
493 iter.index = index;
af7d8a29fbc5 #219 array list: add iterator
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parents: 615
diff changeset
494 iter.src_handle = list;
af7d8a29fbc5 #219 array list: add iterator
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parents: 615
diff changeset
495 iter.elem_handle = cx_arl_at(list, index);
630
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diff changeset
496 iter.base.valid = cx_arl_iter_valid;
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diff changeset
497 iter.base.current = cx_arl_iter_current;
655
7340c4255f1f implement backwards iterator - fixes #238
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parents: 654
diff changeset
498 iter.base.next = backwards ? cx_arl_iter_prev : cx_arl_iter_next;
630
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parents: 629
diff changeset
499 iter.base.flag_removal = cx_arl_iter_flag_rm;
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parents: 629
diff changeset
500 iter.base.remove = false;
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parents: 629
diff changeset
501 iter.base.mutating = false;
ac5e7f789048 separate iterators and mutating iterators
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parents: 629
diff changeset
502
ac5e7f789048 separate iterators and mutating iterators
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parents: 629
diff changeset
503 return iter;
ac5e7f789048 separate iterators and mutating iterators
Mike Becker <universe@uap-core.de>
parents: 629
diff changeset
504 }
616
af7d8a29fbc5 #219 array list: add iterator
Mike Becker <universe@uap-core.de>
parents: 615
diff changeset
505
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
506 static cx_list_class cx_array_list_class = {
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
507 cx_arl_destructor,
641
d402fead3386 add new pointer list wrapper - resolves #234
Mike Becker <universe@uap-core.de>
parents: 640
diff changeset
508 cx_arl_insert_element,
638
eafb45eefc51 add cxListInsertArray() - fixes #224
Mike Becker <universe@uap-core.de>
parents: 630
diff changeset
509 cx_arl_insert_array,
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
510 cx_arl_insert_iter,
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
511 cx_arl_remove,
664
af5bf4603a5d add cxListClear and fix missing destructor invocations - #241 #246
Mike Becker <universe@uap-core.de>
parents: 662
diff changeset
512 cx_arl_clear,
647
2e6e9d9f2159 implement swap function for list elements - fixes #218
Mike Becker <universe@uap-core.de>
parents: 643
diff changeset
513 cx_arl_swap,
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
514 cx_arl_at,
764
ccbdbd088455 add cxListFindRemove and cx_linked_list_find_node
Mike Becker <universe@uap-core.de>
parents: 763
diff changeset
515 cx_arl_find_remove,
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
516 cx_arl_sort,
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
517 cx_arl_compare,
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
518 cx_arl_reverse,
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
519 cx_arl_iterator,
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
520 };
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
521
670
4ad8ea3aee49 allow NULL for allocator and comparator
Mike Becker <universe@uap-core.de>
parents: 667
diff changeset
522 CxList *cxArrayListCreate(
606
314e9288af2f add array list tests
Mike Becker <universe@uap-core.de>
parents:
diff changeset
523 CxAllocator const *allocator,
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
524 cx_compare_func comparator,
606
314e9288af2f add array list tests
Mike Becker <universe@uap-core.de>
parents:
diff changeset
525 size_t item_size,
314e9288af2f add array list tests
Mike Becker <universe@uap-core.de>
parents:
diff changeset
526 size_t initial_capacity
314e9288af2f add array list tests
Mike Becker <universe@uap-core.de>
parents:
diff changeset
527 ) {
670
4ad8ea3aee49 allow NULL for allocator and comparator
Mike Becker <universe@uap-core.de>
parents: 667
diff changeset
528 if (allocator == NULL) {
4ad8ea3aee49 allow NULL for allocator and comparator
Mike Becker <universe@uap-core.de>
parents: 667
diff changeset
529 allocator = cxDefaultAllocator;
4ad8ea3aee49 allow NULL for allocator and comparator
Mike Becker <universe@uap-core.de>
parents: 667
diff changeset
530 }
4ad8ea3aee49 allow NULL for allocator and comparator
Mike Becker <universe@uap-core.de>
parents: 667
diff changeset
531
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
532 cx_array_list *list = cxCalloc(allocator, 1, sizeof(cx_array_list));
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
533 if (list == NULL) return NULL;
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
534
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
535 list->base.cl = &cx_array_list_class;
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
536 list->base.allocator = allocator;
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
537 list->capacity = initial_capacity;
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
538
667
2f88a7c13a28 add CX_STORE_POINTERS special "item size" for lists
Mike Becker <universe@uap-core.de>
parents: 666
diff changeset
539 if (item_size > 0) {
677
b09aae58bba4 refactoring of collections to make use of destructors in map implementations
Mike Becker <universe@uap-core.de>
parents: 676
diff changeset
540 list->base.item_size = item_size;
763
741a2040fa33 make cx_cmp_ptr default comparator for pointer lists - relates to #340
Mike Becker <universe@uap-core.de>
parents: 735
diff changeset
541 list->base.cmpfunc = comparator;
667
2f88a7c13a28 add CX_STORE_POINTERS special "item size" for lists
Mike Becker <universe@uap-core.de>
parents: 666
diff changeset
542 } else {
678
78f943d76f50 reformat code
Mike Becker <universe@uap-core.de>
parents: 677
diff changeset
543 item_size = sizeof(void *);
763
741a2040fa33 make cx_cmp_ptr default comparator for pointer lists - relates to #340
Mike Becker <universe@uap-core.de>
parents: 735
diff changeset
544 list->base.cmpfunc = comparator == NULL ? cx_cmp_ptr : comparator;
667
2f88a7c13a28 add CX_STORE_POINTERS special "item size" for lists
Mike Becker <universe@uap-core.de>
parents: 666
diff changeset
545 cxListStorePointers((CxList *) list);
2f88a7c13a28 add CX_STORE_POINTERS special "item size" for lists
Mike Becker <universe@uap-core.de>
parents: 666
diff changeset
546 }
2f88a7c13a28 add CX_STORE_POINTERS special "item size" for lists
Mike Becker <universe@uap-core.de>
parents: 666
diff changeset
547
676
d0680a23d850 fix initial storage allocation for array lists created with CX_STORE_POINTERS
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
548 // allocate the array after the real item_size is known
d0680a23d850 fix initial storage allocation for array lists created with CX_STORE_POINTERS
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
549 list->data = cxCalloc(allocator, initial_capacity, item_size);
d0680a23d850 fix initial storage allocation for array lists created with CX_STORE_POINTERS
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
550 if (list->data == NULL) {
d0680a23d850 fix initial storage allocation for array lists created with CX_STORE_POINTERS
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
551 cxFree(allocator, list);
d0680a23d850 fix initial storage allocation for array lists created with CX_STORE_POINTERS
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
552 return NULL;
d0680a23d850 fix initial storage allocation for array lists created with CX_STORE_POINTERS
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
553 }
d0680a23d850 fix initial storage allocation for array lists created with CX_STORE_POINTERS
Mike Becker <universe@uap-core.de>
parents: 670
diff changeset
554
628
1e2be40f0cb5 use //-style single line comments everywhere
Mike Becker <universe@uap-core.de>
parents: 627
diff changeset
555 // configure the reallocator
610
de5d3ee6435f #219 array list: implement add and at
Mike Becker <universe@uap-core.de>
parents: 607
diff changeset
556 list->reallocator.realloc = cx_arl_realloc;
de5d3ee6435f #219 array list: implement add and at
Mike Becker <universe@uap-core.de>
parents: 607
diff changeset
557 list->reallocator.ptr1 = (void *) allocator;
de5d3ee6435f #219 array list: implement add and at
Mike Becker <universe@uap-core.de>
parents: 607
diff changeset
558
607
2d99e978dc34 implement array list ctor and dtor
Mike Becker <universe@uap-core.de>
parents: 606
diff changeset
559 return (CxList *) list;
606
314e9288af2f add array list tests
Mike Becker <universe@uap-core.de>
parents:
diff changeset
560 }

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