linux/include/asm-generic/bitops/hweight.h

#ifndef _ASM_GENERIC_BITOPS_HWEIGHT_H_
#define _ASM_GENERIC_BITOPS_HWEIGHT_H_

#include <asm-generic/bitops/arch_hweight.h>
#include <asm-generic/bitops/const_hweight.h>

#endif /* _ASM_GENERIC_BITOPS_HWEIGHT_H_ */
[PATCH] bitops: generic hweight{64,32,16,8}() This patch introduces the C-language equivalents of the functions below: unsigned int hweight32(unsigned int w); unsigned int hweight16(unsigned int w); unsigned int hweight8(unsigned int w); unsigned long hweight64(__u64 w); In include/asm-generic/bitops/hweight.h This code largely copied from: include/linux/bitops.h Signed-off-by: Akinobu Mita <mita@miraclelinux.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 2006-03-26 09:39:13 +00:00			`#ifndef _ASM_GENERIC_BITOPS_HWEIGHT_H_`
			`#define _ASM_GENERIC_BITOPS_HWEIGHT_H_`

bitops: Optimize hweight() by making use of compile-time evaluation Rename the extisting runtime hweight() implementations to __arch_hweight(), rename the compile-time versions to __const_hweight() and then have hweight() pick between them. Suggested-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20100318111929.GB11152@aftab> Acked-by: H. Peter Anvin <hpa@zytor.com> LKML-Reference: <1265028224.24455.154.camel@laptop> Signed-off-by: H. Peter Anvin <hpa@zytor.com> 2010-02-01 14:03:07 +00:00			`#include <asm-generic/bitops/arch_hweight.h>`
			`#include <asm-generic/bitops/const_hweight.h>`
[PATCH] bitops: generic hweight{64,32,16,8}() This patch introduces the C-language equivalents of the functions below: unsigned int hweight32(unsigned int w); unsigned int hweight16(unsigned int w); unsigned int hweight8(unsigned int w); unsigned long hweight64(__u64 w); In include/asm-generic/bitops/hweight.h This code largely copied from: include/linux/bitops.h Signed-off-by: Akinobu Mita <mita@miraclelinux.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 2006-03-26 09:39:13 +00:00
			`#endif /* _ASM_GENERIC_BITOPS_HWEIGHT_H_ */`