82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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typedef struct i32_ArrayList {
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int capacity; // capacity of the array
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int index; // the current location the list that is to be written to
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int32_t data[]; // the data
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} i32_ArrayList;
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i32_ArrayList* new_arraylist(int cap) {
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i32_ArrayList* arr = malloc(sizeof(i32_ArrayList) + cap * sizeof(int));
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arr->capacity = cap;
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arr->index = 0;
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return arr;
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}
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// add to end of the array
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void array_append(i32_ArrayList* s, int v) {
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if (s->index == s->capacity) {
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printf("you attempted to insert %d, but array is at capacity cannot add mode values\n", v);
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} else {
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s->data[s->index] = v;
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s->index++;
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}
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}
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// insert value at index
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void array_insert_at(i32_ArrayList* arr, int index, int32_t value) {
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for (int i = index; i > arr->index; i--) {
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arr->data[i] = arr->data[i - 1];
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}
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}
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int32_t array_get_at(i32_ArrayList* arr, int index) {
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return (arr->data[index]);
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}
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int32_t pop_from_array(i32_ArrayList* s) {
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if (s->index == 0) {
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printf("there is nothing to remove!\n");
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return (-99);
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} else {
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int32_t val = s->data[s->index - 1];
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s->index--;
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return (val);
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}
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}
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void grow_array_list(i32_ArrayList* s, int amount) {
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}
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void print_array_list(i32_ArrayList* arr) {
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printf("[");
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for (int i = 0; i < arr->index; i++) {
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printf(" %d ", arr->data[i]);
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}
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printf("]\n");
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}
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int main() {
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i32_ArrayList* a = new_arraylist(5);
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array_append(a, 10);
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print_array_list(a);
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array_append(a, 11);
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print_array_list(a);
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array_append(a, 12);
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print_array_list(a);
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array_append(a, 13);
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print_array_list(a);
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array_append(a, 14);
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print_array_list(a);
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pop_from_array(a);
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print_array_list(a);
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array_append(a, 15);
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print_array_list(a);
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array_insert_at(a, 3, 55);
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print_array_list(a);
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printf("%d\n", array_get_at(a, 3));
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} |