length()
public
Returns the number of key-value pairs in this database.
static VALUE
fgdbm_length(VALUE obj)
{
datum key, nextkey;
struct dbmdata *dbmp;
GDBM_FILE dbm;
int i = 0;
GetDBM2(obj, dbmp, dbm);
if (dbmp->di_size > 0) return INT2FIX(dbmp->di_size);
for (key = gdbm_firstkey(dbm); key.dptr; key = nextkey) {
nextkey = gdbm_nextkey(dbm, key);
free(key.dptr);
i++;
}
dbmp->di_size = i;
return INT2FIX(i);
}