OS1/movies/node.c

#include "node.h"

void append_node(struct node* head, struct node* node_app) {
	
  if(!head) {
    head = node_app;
    return;
  }

  struct node* temp = head;

  while(temp->node != NULL) {
    temp = temp->node;
  }
  temp->node = node_app;
  
} 

struct node* appendv_node(struct node* head, void* data) {

  struct node* node = malloc(sizeof(struct node));
  node->data = data;
  node->node = NULL;

  append_node(head, node);

  return node;
}

int count_nodes(struct node* head) {

  int num = 1;

  if(!head)
    return -1;

  struct node* temp = head;
  while(temp->node) {

    temp = temp->node;
    num++;
  }
  
  return num;
}

void iterate_nodes(struct node* head, void *func (void*, void*), void* val) {

  if(!head)
    return;

  func(head->data, val);

  struct node* temp = head;

  while(temp->node) {
    temp = temp->node;
    func(temp->data, val);
  }
}