From f1ffa5e90e5eecaac890e876760932d1bb1d9c86 Mon Sep 17 00:00:00 2001
From: Sverker Eriksson <sverker@erlang.org>
Date: Mon, 19 Sep 2016 15:47:18 +0200
Subject: erts: Add ErtsSizeofMember macro

(in case it matters)
---
 erts/emulator/beam/sys.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'erts/emulator')

diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h
index 2d0628f70e..16e6c33367 100644
--- a/erts/emulator/beam/sys.h
+++ b/erts/emulator/beam/sys.h
@@ -103,6 +103,8 @@
 #define ErtsContainerStruct_(ptr, type, memberv) \
     ((type *)((char *)(1 ? (ptr) : ((type *)0)->memberv) - offsetof(type, memberv)))
 
+#define ErtsSizeofMember(type, member) sizeof(((type *)0)->member)
+
 #if defined (__WIN32__)
 #  include "erl_win_sys.h"
 #else
-- 
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