Regards #65.

* The overall number of records uses the `DSS_HUGE` type; no longer assuming each update segment's row count can fit into an `int`
* The seed adjustment functions (`sd_order`, `sd_line` etc.) take a skip count which is a record index; but it is also a `long`, since the seeds are long. Now, we could start changing the seeds into `DSS_HUGE`s, but for now - let's just explicitly cast `DSS_HUGE` record count inputs to these function into `long`s.

src/driver.c

@@ -421,9 +421,9 @@ gen_tbl (int tnum, DSS_HUGE start, DSS_HUGE count, long upd_num)
 	static int init = 0;
 	DSS_HUGE i;
 
-	int rows_per_segment=0;
-	int rows_this_segment=-1;
-	int residual_rows=0;
+	DSS_HUGE rows_per_segment=0;
+	DSS_HUGE rows_this_segment=-1;
+	DSS_HUGE residual_rows=0;
 
 	if (insert_segments)
 		{
@@ -1061,8 +1061,8 @@ main (int ac, char **av)
 			/* 
 			 * adjust RNG for any prior update generation
 			 */
-			sd_order(0, rowcnt * (step - 1));
-			sd_line(0, rowcnt * (step - 1));
+			sd_order(0, (long) (rowcnt * (step - 1)));
+			sd_line(0, (long) (rowcnt * (step - 1)));
 			upd_num = step - 1;
 			}
 		else

src/speed_seed.c

@@ -276,7 +276,7 @@ sd_line(int child, long skip_count)
 	}
 
 long 
-sd_order(int child, long skip_count)        
+sd_order(int child, long skip_count)
 {
    UNUSED(child);
    ADVANCE_STREAM(O_LCNT_SD, skip_count);