bitops.h File Reference

#include <asm/types.h>
#include <asm/bitops.h>

Go to the source code of this file.

Macros
#define	for_each_set_bit(bit, addr, size)
#define	for_each_set_bit_from(bit, addr, size)
#define	for_each_clear_bit(bit, addr, size)
#define	for_each_clear_bit_from(bit, addr, size)

Functions
unsigned int	__sw_hweight8 (unsigned int w)
unsigned int	__sw_hweight16 (unsigned int w)
unsigned int	__sw_hweight32 (unsigned int w)
unsigned long	__sw_hweight64 (__u64 w)

Macro Definition Documentation

#define for_each_clear_bit	(		bit,
			addr,
			size
	)

Value:

for ((bit) = find_first_zero_bit((addr), (size));   \
         (bit) < (size);                    \
         (bit) = find_next_zero_bit((addr), (size), (bit) + 1))

Definition at line 35 of file bitops.h.

#define for_each_clear_bit_from	(		bit,
			addr,
			size
	)

Value:

for ((bit) = find_next_zero_bit((addr), (size), (bit)); \
         (bit) < (size);                    \
         (bit) = find_next_zero_bit((addr), (size), (bit) + 1))

Definition at line 41 of file bitops.h.

#define for_each_set_bit	(		bit,
			addr,
			size
	)

Value:

for ((bit) = find_first_bit((addr), (size));        \
         (bit) < (size);                    \
         (bit) = find_next_bit((addr), (size), (bit) + 1))

Definition at line 24 of file bitops.h.

#define for_each_set_bit_from	(		bit,
			addr,
			size
	)

Value:

for ((bit) = find_next_bit((addr), (size), (bit));  \
         (bit) < (size);                    \
         (bit) = find_next_bit((addr), (size), (bit) + 1))

Definition at line 30 of file bitops.h.

Function Documentation

unsigned int __sw_hweight16

(

unsigned int

w

)

Definition at line 29 of file hweight.c.

unsigned int __sw_hweight32

(

unsigned int

w

)

hweightN - returns the hamming weight of a N-bit word : the word to weigh

The Hamming Weight of a number is the total number of bits set in it.

Definition at line 12 of file hweight.c.

unsigned long __sw_hweight64

(

__u64

w

)

Definition at line 46 of file hweight.c.

unsigned int __sw_hweight8

(

unsigned int

w

)

Definition at line 38 of file hweight.c.