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types: Define GRUB_CHAR_BIT based on compiler macro instead of using literal

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Signed-off-by: Glenn Washburn <development@efficientek.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Glenn Washburn 2020-11-06 22:44:24 -06:00 committed by Daniel Kiper
parent 71dd2ef76f
commit f0715577c2
1 changed files with 8 additions and 2 deletions
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10
include/grub/types.h
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@ -72,6 +72,14 @@
# endif
#endif
#ifndef __CHAR_BIT__
# error __CHAR_BIT__ is not defined
#elif __CHAR_BIT__ != 8
# error __CHAR_BIT__ is not equal 8
#else
# define GRUB_CHAR_BIT __CHAR_BIT__
#endif
/* Define various wide integers. */
typedef signed char grub_int8_t;
typedef short grub_int16_t;
@ -317,6 +325,4 @@ static inline void grub_set_unaligned64 (void *ptr, grub_uint64_t val)
dd->d = val;
}
#define GRUB_CHAR_BIT 8
#endif /* ! GRUB_TYPES_HEADER */