#include <stdio.h>
#include <stdlib.h>

/* ------------------------
   List element definition
   ------------------------ */
struct ListElem
{
   int              value;
   struct ListElem* next;
};


int main(int argc, char *argv[])
{
   struct ListElem* head;   // Head of list
   struct ListElem* p;      // Help variable to allocate new list element

   head = NULL;           // Empty list

   /* ========================================================
      Insert at head technique:

	1. create new list element p
           put values in the payload area...
	2. make p point to first element in list
	3. make head point to new list element
      ======================================================== */

   p = malloc( sizeof(struct ListElem) );       // (1)
   p->value = 123;				// Payload...

   p->next = head;				// (2)

   head = p;					// (3)
}