/* Header file for compression.c*/
/*ifndef makes sure this file is not used more than once*/
#ifndef COMPRESS_H

/*Include standard libraris*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

/*Definitions*/
#define COMPRESS_H 1
#define TRUE 1

/*Define node for queue and tree*/
typedef struct node {			
	char c;
	int priority;
	struct node *previous;
	struct node *next;
	struct node *left;
	struct node *right;
}qtnode;
typedef qtnode *qtptr;

/*Prototypes for functions used in compression.c*/
qtptr createQueue (FILE *input, FILE *output);
void encode(qtptr qfirst,FILE *input, FILE *output);

/*Prototypes for functions used in queue.c*/
qtptr q_mknode(char	c);
qtptr q_enqueue(qtptr qfirst,qtptr qnode);
qtptr q_dequeue(qtptr qfirst,qtptr *qnode);
qtptr q_addchar(qtptr qfirst,char c);
void q_filestore(qtptr qfirst, FILE *output);

/*Prototypes for functions used in tree.c*/
qtptr t_create(qtptr qfirst);
char *t_find(qtptr root, char c);
char *t_recurfind(qtptr root, char c, char *ctemp,char *cval);
void t_charencode(qtptr root, FILE *input, FILE *output);

#endif