cu/ptr.h: Pointer Arithmetic
[Data Types]

Functions
void *	cu_ptr_add (void *ptr, ptrdiff_t diff)
void *	cu_ptr_sub (void *ptr, ptrdiff_t diff)
ptrdiff_t	cu_ptr_diff (void const *ptr_lhs, void const *ptr_rhs)
int	cu_ptr_cmp (void const *ptr0, void const *ptr1)
void *	cu_ptr_mulfloor (void *ptr, cu_offset_t m)
void *	cu_ptr_mulceil (void *ptr, cu_offset_t m)
void *	cu_ptr_scal2floor (void *ptr, unsigned int b)
void *	cu_ptr_scal2ceil (void *ptr, unsigned int b)
void *	cu_ptr_alignfloor (void *ptr)
void *	cu_ptr_alignceil (void *ptr)

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Function Documentation

void* cu_ptr_add	(	void *	ptr,
		ptrdiff_t	diff
	)

Add diff bytes to ptr irrespective of the underlying type.

void* cu_ptr_alignceil

(

void *

ptr

)

The pointer ptr rounded up to the nearest multiple of the maximum alignment.

void* cu_ptr_alignfloor

(

void *

ptr

)

The pointer ptr rounded down to the nearest multiple of the maximum alignment.

int cu_ptr_cmp	(	void const *	ptr0,
		void const *	ptr1
	)

Return -1 if ptr0 < ptr1, 0 if ptr0 = ptr1, and 1 otherwise.

ptrdiff_t cu_ptr_diff	(	void const *	ptr_lhs,
		void const *	ptr_rhs
	)

The difference between ptr0 and ptr1 in bytes, irrespective of the underlying types.

void* cu_ptr_mulceil	(	void *	ptr,
		cu_offset_t	m
	)

The pointer ptr rounded up to the nearest multiple of m.

void* cu_ptr_mulfloor	(	void *	ptr,
		cu_offset_t	m
	)

The pointer ptr rounded down to the nearest multiple of m.

void* cu_ptr_scal2ceil	(	void *	ptr,
		unsigned int	b
	)

The pointer ptr rounded up to the nearest multiple of .

void* cu_ptr_scal2floor	(	void *	ptr,
		unsigned int	b
	)

The pointer ptr rounded down to the nearest multiple of .

void* cu_ptr_sub	(	void *	ptr,
		ptrdiff_t	diff
	)

Subtract diff bytes from ptr irrespective of the underlying type.