#ifndef	COMMON_H
#define	COMMON_H

#include <erl_nif.h>

extern int isNilAtom(ErlNifEnv *env, ERL_NIF_TERM term);
extern unsigned char *createNullTermMbString(const ErlNifBinary binary);
extern ErlNifBinary convertWcharToMbBinary(const wchar_t *wstr);

extern ErlNifResourceType* TypeOfBook;
extern ErlNifResourceType* TypeOfSheet;
extern ErlNifResourceType* TypeOfFormat;
extern ErlNifResourceType* TypeOfFont;
extern ErlNifResourceType* TypeOfRichString;
extern ErlNifResourceType* TypeOfAutofilter;
extern ErlNifResourceType* TypeOfFilterColumn;
extern ErlNifResourceType* TypeOfFormControl;

#endif