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added HCL_BITSOF(x)

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hyung-hwan 2019-09-26 05:24:13 +00:00
parent d53151a080
commit 8b96d6fc0f
1 changed files with 6 additions and 5 deletions
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11
lib/hcl-cmn.h
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@ -610,6 +610,7 @@ struct hcl_ntime_t
#define HCL_SIZEOF(x) (sizeof(x)) #define HCL_SIZEOF(x) (sizeof(x))
#define HCL_COUNTOF(x) (sizeof(x) / sizeof((x)[0])) #define HCL_COUNTOF(x) (sizeof(x) / sizeof((x)[0]))
#define HCL_BITSOF(x) (sizeof(x) * HCL_BITS_PER_BYTE)
/** /**
* The HCL_OFFSETOF() macro returns the offset of a field from the beginning * The HCL_OFFSETOF() macro returns the offset of a field from the beginning
@ -636,11 +637,11 @@ struct hcl_ntime_t
/* make a bit mask that can mask off low n bits */ /* make a bit mask that can mask off low n bits */
#define HCL_LBMASK(type,n) (~(~((type)0) << (n))) #define HCL_LBMASK(type,n) (~(~((type)0) << (n)))
#define HCL_LBMASK_SAFE(type,n) (((n) < HCL_SIZEOF(type) * HCL_BITS_PER_BYTE)? HCL_LBMASK(type,n): ~(type)0) #define HCL_LBMASK_SAFE(type,n) (((n) < HCL_BITSOF(type))? HCL_LBMASK(type,n): ~(type)0)
/* make a bit mask that can mask off hig n bits */ /* make a bit mask that can mask off hig n bits */
#define HCL_HBMASK(type,n) (~(~((type)0) >> (n))) #define HCL_HBMASK(type,n) (~(~((type)0) >> (n)))
#define HCL_HBMASK_SAFE(type,n) (((n) < HCL_SIZEOF(type) * HCL_BITS_PER_BYTE)? HCL_HBMASK(type,n): ~(type)0) #define HCL_HBMASK_SAFE(type,n) (((n) < HCL_BITSOF(type))? HCL_HBMASK(type,n): ~(type)0)
/* get 'length' bits starting from the bit at the 'offset' */ /* get 'length' bits starting from the bit at the 'offset' */
#define HCL_GETBITS(type,value,offset,length) \ #define HCL_GETBITS(type,value,offset,length) \
@ -667,7 +668,7 @@ struct hcl_ntime_t
* \endcode * \endcode
*/ */
/*#define HCL_BITS_MAX(type,nbits) ((((type)1) << (nbits)) - 1)*/ /*#define HCL_BITS_MAX(type,nbits) ((((type)1) << (nbits)) - 1)*/
#define HCL_BITS_MAX(type,nbits) ((~(type)0) >> (HCL_SIZEOF(type) * HCL_BITS_PER_BYTE - (nbits))) #define HCL_BITS_MAX(type,nbits) ((~(type)0) >> (HCL_BITSOF(type) - (nbits)))
/* ========================================================================= /* =========================================================================
* MMGR * MMGR
@ -824,11 +825,11 @@ typedef struct hcl_t hcl_t;
#define HCL_TYPE_IS_UNSIGNED(type) (((type)0) < ((type)-1)) #define HCL_TYPE_IS_UNSIGNED(type) (((type)0) < ((type)-1))
#define HCL_TYPE_SIGNED_MAX(type) \ #define HCL_TYPE_SIGNED_MAX(type) \
((type)~((type)1 << ((type)HCL_SIZEOF(type) * HCL_BITS_PER_BYTE - 1))) ((type)~((type)1 << ((type)HCL_BITSOF(type) - 1)))
#define HCL_TYPE_UNSIGNED_MAX(type) ((type)(~(type)0)) #define HCL_TYPE_UNSIGNED_MAX(type) ((type)(~(type)0))
#define HCL_TYPE_SIGNED_MIN(type) \ #define HCL_TYPE_SIGNED_MIN(type) \
((type)((type)1 << ((type)HCL_SIZEOF(type) * HCL_BITS_PER_BYTE - 1))) ((type)((type)1 << ((type)HCL_BITSOF(type) - 1)))
#define HCL_TYPE_UNSIGNED_MIN(type) ((type)0) #define HCL_TYPE_UNSIGNED_MIN(type) ((type)0)
#define HCL_TYPE_MAX(type) \ #define HCL_TYPE_MAX(type) \