/*---list.c file ---*/
#include <stdio.h>  // printf()
#include <stdlib.h> // malloc()
#include "list.h"   // NODE_T, LIST_T

void NodeDisplay(NODE_T *node)
   {
   printf("%d\n",node->a);
   return;
   }

void NodeCreate(LIST_T *list, int a)
   {
   NODE_T *newNode = malloc(sizeof(*newNode));
   if(NULL == newNode)
      {
      fprintf(stderr, "malloc(newNode) failed.\n");
      goto CLEANUP;
      }

   if(NULL == list)
      {
      fprintf(stderr, "Passing NULL as the list address not allowed.\n");
      goto CLEANUP;
      }

   /* Initialize new node fields (payload) */
   newNode->a = a;

   /* Link newNode as new 'list head' node. */
   newNode->next = list->head ? list->head->next : NULL;
   list->head = newNode;
   newNode=NULL;

  CLEANUP:

     if(newNode)
        free(newNode);

     return;
     }