These constants give the return value indicating status of the heap.
Initial header information was not found or was invalid.
Bad node was found, or heap is damaged.
_pentry field of _HEAPINFO structure does not contain valid pointer into heap (_heapwalk routine only).
Heap has not been initialized.
End of heap was reached successfully (_heapwalk routine only).
Heap is consistent (_heapset and _heapchk routines only). No errors so far; _HEAPINFO structure contains information about next entry (_heapwalk routine only).