array.c

/*
 * Copyright 2021 Jeisson Hidalgo-Cespedes - Universidad de Costa Rica
 */

#include <assert.h>
#include <stdlib.h>

#include "array.h"

int array_increase_capacity(array_t* array);

int array_init(array_t* array) {
  assert(array);
  array->capacity = 10;
  array->count = 0;
  array->elements = calloc(array->capacity, sizeof(data_t));
  return array->elements == NULL;
}

void array_destroy(array_t* array) {
  assert(array);
  array->capacity = 0;
  array->count = 0;
  free(array->elements);
  array->elements = NULL;
}

int array_append(array_t* array, data_t data) {
  assert(array);

  int error = EXIT_SUCCESS;
  if (array->count == array->capacity) {
    error = array_increase_capacity(array);
  }

  if (error == EXIT_SUCCESS) {
    array->elements[array->count++] = data;
  }

  return error;
}

int array_increase_capacity(array_t* array) {
  assert(array);
  int error = EXIT_SUCCESS;
  size_t new_capacity = 10 * array->capacity;
  data_t* new_array = realloc(array->elements, new_capacity * sizeof(data_t));
  if (new_array) {
    array->capacity = new_capacity;
    array->elements = new_array;
  } else {
    error = EXIT_FAILURE;
  }
  return error;
}