63 lines
2.2 KiB
C
63 lines
2.2 KiB
C
#include <stdio.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include <acl/array.h>
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size_t acl_arraylist_len(void *arraylist);
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static inline void* acl_arraylist_resize(union acl_arraylist_meta *arraylist, int64_t relativLen) {
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size_t cap = arraylist->cap + relativLen;
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arraylist = realloc(arraylist, cap * arraylist->sizeof_one_element + sizeof *arraylist);
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if(arraylist != NULL) {
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arraylist->cap = cap;
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}
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return arraylist;
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}
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void* acl_arraylist_create(size_t array_size, size_t sizeof_one_element) {
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union acl_arraylist_meta *arraylist_new = malloc(array_size * sizeof_one_element + sizeof*arraylist_new);
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if(arraylist_new == NULL) return NULL;
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arraylist_new->len = array_size;
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arraylist_new->cap = array_size;
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arraylist_new->sizeof_one_element = sizeof_one_element;
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return arraylist_new+1;
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}
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void* acl_arraylist_append(void *arraylist_void, void *element) {
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void *element_append;
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union acl_arraylist_meta *arraylist = acl_arraylist_append_ptr(arraylist_void, &element_append);
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if(arraylist == NULL) return NULL;
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--arraylist;
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memcpy(element_append, element, arraylist->sizeof_one_element);
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return arraylist + 1;
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}
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void* acl_arraylist_append_ptr(void *arraylist_void, void **append_element) {
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union acl_arraylist_meta *arraylist = arraylist_void;
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--arraylist;
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if(arraylist->len == arraylist->cap) {
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acl_arraylist_resize(arraylist, 10);
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if(arraylist == NULL) return NULL;
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}
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*append_element = (char*)(arraylist + 1) + arraylist->sizeof_one_element * arraylist->len;
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++arraylist->len;
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return arraylist + 1;
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}
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void acl_arraylist_free(void *arraylist) {
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free((union acl_arraylist_meta*)arraylist-1);
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}
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void* acl_arraylist_remove(void *arraylist_void, size_t index) {
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union acl_arraylist_meta *arraylist = (union acl_arraylist_meta*)arraylist_void - 1;
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char *arraylist_char = arraylist_void;
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if(index != arraylist->len - 1) {
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memcpy(arraylist_char + arraylist->sizeof_one_element * index, arraylist_char + arraylist->sizeof_one_element * (arraylist->len - 1), arraylist->sizeof_one_element);
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}
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--arraylist->len;
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if(arraylist->len < arraylist->cap - 20) {
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void* arraylistTmp = acl_arraylist_resize(arraylist, -10);
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if(arraylistTmp != NULL) arraylist = arraylistTmp;
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}
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return arraylist + 1;
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}
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