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include: Add array_size() macro

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Getting array size of a dynmaic array can be very handy hence
this patch.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Anup Patel
2020-04-24 18:37:10 +05:30
committed by Anup Patel
parent f0eb503db4
commit 1ac794cb61
1 changed files with 2 additions and 0 deletions
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2
include/sbi/sbi_types.h
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@@ -78,6 +78,8 @@ typedef unsigned long physical_size_t;
const typeof(((type *)0)->member) * __mptr = (ptr); \
(type *)((char *)__mptr - offsetof(type, member)); })
#define array_size(x) (sizeof(x) / sizeof((x)[0]))
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define CLAMP(a, lo, hi) MIN(MAX(a, lo), hi)