include: Define CONTAINING_RECORD using the standard offsetof.

649c982e · Amine Khaldi · Alexandre Julliard · e3dd01a2 · 649c982e
Commit 649c982e authored Dec 10, 2012 by Amine Khaldi Committed by Alexandre Julliard Dec 11, 2012
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winnt.h include/winnt.h +1 -1

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--- a/include/winnt.h
+++ b/include/winnt.h
@@ -749,7 +749,7 @@ typedef struct _MEMORY_BASIC_INFORMATION
 #define FIELD_OFFSET(type, field) ((LONG)offsetof(type, field))

 #define CONTAINING_RECORD(address, type, field) \
-  ((type *)((PCHAR)(address) - (PCHAR)(&((type *)0)->field)))
+  ((type *)((PCHAR)(address) - offsetof(type, field)))

 /* Types */