#ifndef LINKEDLIST_H
#define LINKEDLIST_H

#include <stdlib.h>

typedef struct LinkedList LinkedList;

typedef enum {
    LLIST_OK = 0,
    LLIST_ALLOC,
    LLIST_NULL,
    LLIST_NULL_ARG,
    LLIST_OUT_OF_BOUNDS,
    LLIST_INVALID_SIZE,
} LinkedListErr;

LinkedListErr linkedlist_create(LinkedList **out, size_t elem_size);
LinkedListErr linkedlist_destroy(LinkedList *ll);

LinkedListErr linkedlist_append(LinkedList *ll, void *data);
LinkedListErr linkedlist_delete(LinkedList *ll, size_t index);
LinkedListErr linkedlist_pop(LinkedList *ll, size_t index, void *out);
LinkedListErr linkedlist_insert(LinkedList *ll, size_t index, void *out);
LinkedListErr linkedlist_get(const LinkedList *ll, size_t index, void *out);
LinkedListErr linkedlist_len(const LinkedList *ll, size_t *out);

#endif /* ifndef LINKEDLIST_H */