From 8fa033a49f2223f2e8888b791822365688335ee1 Mon Sep 17 00:00:00 2001
From: Eugen Wissner <belka@caraus.de>
Date: Thu, 8 Mar 2018 17:59:29 +0100
Subject: [PATCH] Fix #32

---
 source/tanya/async/event/iocp.d | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source/tanya/async/event/iocp.d b/source/tanya/async/event/iocp.d
index d4fa6f2..ef82cab 100644
--- a/source/tanya/async/event/iocp.d
+++ b/source/tanya/async/event/iocp.d
@@ -296,7 +296,8 @@ final class IOCPLoop : Loop
             return; // Timeout
         }
 
-        auto overlapped = (cast(SocketState) ((cast(void*) overlap) - 8));
+        enum size_t offset = size_t.sizeof * 2;
+        auto overlapped = cast(SocketState) ((cast(void*) overlap) - offset);
         assert(overlapped !is null);
         scope (failure)
         {