#ifndef STRSET_H
#define STRSET_H

#include "uint_t.h"

typedef struct strset_list {
  uint32 h;
  int next;
} strset_list;

typedef struct {
  int mask;       /* mask + 1 is power of 2, size of hash table */
  int n;          /* number of entries used in list and x */
  int a;          /* number of entries allocated in list and x */
  int *first;     /* first[h] is front of hash list h */
  strset_list *p; /* p[i].next is next; p[i].h is hash of x[i] */
  char **x;       /* x[i] is entry i */
} strset;

extern uint32 strset_hash(char *);
extern int strset_init(strset *);
extern char *strset_in(strset *, char *);
extern int strset_add(strset *, char *);

#endif