Blame SOURCES/0077-macros.h-introduce-sizeof_field-macro.patch
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From ed47b3a326d40e864926c0a456903bdbd3c23e87 Mon Sep 17 00:00:00 2001
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From: Eugene Syromyatnikov <evgsyr@gmail.com>
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Date: Fri, 1 Nov 2019 01:57:16 +0100
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Subject: [PATCH] macros.h: introduce sizeof_field macro
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Handy for field size checks.
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* macros.h (sizeof_field): New macro.
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(offsetofend): Use it.
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---
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macros.h | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/macros.h b/macros.h
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index c58ac6a..d7e191f 100644
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--- a/macros.h
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+++ b/macros.h
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@@ -37,9 +37,11 @@
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# define ROUNDUP(val_, div_) (ROUNDUP_DIV((val_), (div_)) * (div_))
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# endif
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+# define sizeof_field(type_, member_) (sizeof(((type_ *)0)->member_))
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+
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# ifndef offsetofend
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# define offsetofend(type_, member_) \
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- (offsetof(type_, member_) + sizeof(((type_ *)0)->member_))
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+ (offsetof(type_, member_) + sizeof_field(type_, member_))
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# endif
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# ifndef cast_ptr
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--
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2.1.4
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