#ifndef _DECLARATIONS_H
#define _DECLARATIONS_H

/* linecut.c */
void usage (const char *);
void version (const char *);

/* engine.c */
void verify (data_t *, file_entry_t *);
void extract (data_t *, file_entry_t *);

/* getopts.c */
void getopts (data_t *, bool *, int);

/* process.c */
unsigned long count_lines (FILE *);
fpos_t *build_offset_map (data_t *);
unsigned long map_stdin_lines (data_t *);
void seek_to_start (data_t *);
void seek_to_offset (data_t *, fpos_t *, long);
void extract_range_file (data_t *, long, long);
void extract_range_stdin (data_t *, long, long);

/* util.c */
unsigned int int_length (unsigned long);
bool is_char (char);
void put (char);
void put_newline (void);
void print_line_number (data_t *, unsigned int);
void range_to_absolute (long, long *);
bool str_is_num (const char *);

/* wrapper.c */
void error (const char *, ...);
FILE *xfopen (const char *, const char *);
void xfclose (const char *, FILE *);
void *_xmalloc (size_t);
void *_xcalloc (size_t, size_t);
void *_xrealloc (void *, size_t);
void _xfree (void **);

#endif /* _DECLARATIONS_H */