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lib/zt_common.h: add macro for determining field size

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The macro `sizeof_field` is used in the next patch.

Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Marc Hartmayer
2022-09-07 10:18:44 +00:00
committed by Jan Höppner
parent 2734724432
commit d712806b39
1 changed files with 4 additions and 0 deletions
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4
include/lib/zt_common.h
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@@ -32,6 +32,10 @@
#ifndef __ASSEMBLER__
#ifndef sizeof_field
#define sizeof_field(type, field) (sizeof((type *)0)->field)
#endif
#ifdef UNUSED
#elif defined(__GNUC__)
# define UNUSED(x) UNUSED_ ## x __attribute__((unused))