#define TIME_TO_CHARS(val, where) time_to_chars (val, where, sizeof (where))
bool off_to_chars (off_t off, char *buf, size_t size);
#define TIME_TO_CHARS(val, where) time_to_chars (val, where, sizeof (where))
bool off_to_chars (off_t off, char *buf, size_t size);