#ifndef INDEX_H
#define INDEX_H
/*
This is the header file for Index and Index-related functionality.
*/

struct Index {
  char *ids; // memory of free spots
  int size; // size
  int bias; // "weight" that shows where the most free indexes are from the center
};
int initIndex(struct Index *index, int size);
int clearIndex(struct Index *index);
int growIndex(struct Index *index, int size);
int addIndex(struct Index *index, int id);
int remIndex(struct Index *index, int id);
int toggleIndex(struct Index *index, int id);
int getIndex(struct Index *index, int id);

// find and return first free index
int acquireIndex(struct Index *index);

#endif