Thread: Please debug this!!!

Code:

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


int CompareIntegerDefault(void *data1, void *data2)
{
	
	if(*(int *)data1>*(int *)data2)
		return (1);
	else if(*(int *)data1==*(int *)data2)
		return (0);
	else 
		return (-1);
}
typedef struct AVLTreeNode
{
    void *data ;
    int balfact ;
    
	struct AVLTreeNode *left ;
    struct AVLTreeNode *right ;
} AVLTreeNode,*AVLTreeNodePtr;


typedef struct ContainerHandle
{
	struct AVLTreeNode *AVLRoot;
	//int h;
}ContainerHandle_t,*ContainerHandlePtr_t;
int h;
void buildtree (AVLTreeNodePtr *root, void *data  )
{
    struct AVLTreeNode *node1, *node2 ;


    if ( !root )
    {
        (*root) = ( struct AVLTreeNode * ) malloc ( sizeof ( struct AVLTreeNode ) ) ;
        (*root) -> data = data ;
        (*root) -> left = NULL ;
        (*root) -> right = NULL ;
        (*root) -> balfact = 0 ;
        h=1;
        return ;
    }
  
}


ContainerHandlePtr_t List;


int main()
{
	int a;
	List=(ContainerHandlePtr_t)malloc(sizeof(ContainerHandle_t));
	List->AVLRoot=NULL;
	a=5;
	buildtree ( &(List->AVLRoot),&a);	
	printf("%d",*(int *)(List->AVLRoot->data));
	return 0;
}

This doesnt printf the expected result-5.
Why???????