problem with Structs/NULL

[peking1983]

For an assignment, we have to use hashing to insert a dictionary(an array of linked lists) but I seem to be unable to set any of them to NULL.

btw: note this is my first C program, I learned to program entirely in Java prior to this.

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

#define WORDSIZE 32
#define TABLESIZE 2000
#define HASH_VALUE 13

int tablePosition;
struct LIST table[TABLESIZE];		//table

//global methods
int hash(char string[]);


struct NODE
{
	char word[WORDSIZE];
	struct NODE *next;
};

struct LIST
{
	struct NODE listTop;
};

struct QUEUE
{
	struct NODE queueTop;
	struct NODE queueBottom;
}queue;

int main(int argc, char *argv[])
{

	int i;
	int arg;
	char string[WORDSIZE];
	FILE* word;

	{
		void insert();
	}

	arg=getopt(argc,argv,"d:");

	if(-1!=arg)
		word = fopen(optarg,"r");
	else
	printf("OOPS");


	//sets the first character in each list to NULL to check for empty lists
	for(i=0;i<TABLESIZE;i++)
		table[i].listTop.word=NULL;

	while(fgets(string,WORDSIZE,word))
	{
printf("%s",string);
//		insert(string);
	}




	fclose(word);
	return EXIT_SUCCESS;
}

Code tags added by Hammer

[Hammer]

>>table[i].listTop.word=NULL
make it
>>table[i].listTop.word[0] = '\0'