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libcproject/lib/array_list.c
2023-01-07 19:40:16 +01:00

40 lines
1.1 KiB
C

#include "array_list.h"
struct array_list* array_list_initialization() {
struct array_list* list = malloc(sizeof(struct array_list));
list->data = malloc(sizeof(void*) * ARRAY_LIST_INITIAL_CAPACITY);
list->size = 0;
list->capacity = ARRAY_LIST_INITIAL_CAPACITY;
return list;
}
void array_list_add(struct array_list* list, void* element) {
if (list->size >= list->capacity) {
size_t previous_capacity = list->capacity;
list->capacity += ARRAY_LIST_INITIAL_CAPACITY;
list->data = realloc(list->data, sizeof(void*) * list->capacity);
for (size_t index = previous_capacity; index < list->capacity; index++) {
list->data[index] = NULL;
}
}
list->data[list->size] = element;
list->size++;
}
void array_list_remove(struct array_list* list, size_t index) {
if (index >= list->size) {
return;
}
for (size_t i = index + 1; i < list->size - 1; i++) {
list->data[i - 1] = list->data[i];
}
list->size--;
}
void* array_list_get(struct array_list* list, size_t index) {
if (index >= list->size) {
return NULL;
}
return list->data[index];
}