2235 #define HEAP0 (DHEAP - 1) /* index of first element in heap */  macro
2236 #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
2244   ANHE *E = heap + N + HEAP0;  in downheap()
2250       ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;  in downheap()
2285 #define HEAP0 1  macro
2299       if (c >= N + HEAP0)  in downheap()
2302       c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])  in downheap()
2345   if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))  in adjustheap()
2360     upheap (heap, i + HEAP0);  in reheap()
3107   for (i = HEAP0; i < N + HEAP0; ++i)  in verify_heap()
3110 …assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (…  in verify_heap()
3325   if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)  in timers_reify()
3329           ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);  in timers_reify()
3342               ANHE_at_cache (timers [HEAP0]);  in timers_reify()
3343               downheap (timers, timercnt, HEAP0);  in timers_reify()
3351       while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);  in timers_reify()
3389   while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)  in periodics_reify()
3393           ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);  in periodics_reify()
3404               ANHE_at_cache (periodics [HEAP0]);  in periodics_reify()
3405               downheap (periodics, periodiccnt, HEAP0);  in periodics_reify()
3410               ANHE_at_cache (periodics [HEAP0]);  in periodics_reify()
3411               downheap (periodics, periodiccnt, HEAP0);  in periodics_reify()
3419       while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);  in periodics_reify()
3433   for (i = HEAP0; i < periodiccnt + HEAP0; ++i)  in periodics_reschedule()
3457       ANHE *he = timers + i + HEAP0;  in timers_reschedule()
3613                 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;  in ev_run()
3620                 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;  in ev_run()
3886   ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);  in ev_timer_start()
3913     if (expect_true (active < timercnt + HEAP0))  in ev_timer_stop()
3915         timers [active] = timers [timercnt + HEAP0];  in ev_timer_stop()
3980   ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);  in ev_periodic_start()
4007     if (expect_true (active < periodiccnt + HEAP0))  in ev_periodic_stop()
4009         periodics [active] = periodics [periodiccnt + HEAP0];  in ev_periodic_stop()
5014     for (i = timercnt + HEAP0; i-- > HEAP0; )  in ev_walk()
5029     for (i = periodiccnt + HEAP0; i-- > HEAP0; )  in ev_walk()