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| author | Akinobu Mita <mita@miraclelinux.com> | 2006-03-26 01:39:13 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-26 08:57:11 -0800 |
| commit | 3b9ed1a5d2d121f32d2cb4f2b05f1fc57c99c946 (patch) | |
| tree | d8ea52d6b490c0e3b3851e1887c01700cc0115c6 /include | |
| parent | 09020adb61416c4307de35941a9725a5e33d9beb (diff) | |
| download | op-kernel-dev-3b9ed1a5d2d121f32d2cb4f2b05f1fc57c99c946.zip op-kernel-dev-3b9ed1a5d2d121f32d2cb4f2b05f1fc57c99c946.tar.gz | |
[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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/bitops/hweight.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/asm-generic/bitops/hweight.h b/include/asm-generic/bitops/hweight.h new file mode 100644 index 0000000..8be6f17 --- /dev/null +++ b/include/asm-generic/bitops/hweight.h @@ -0,0 +1,9 @@ +#ifndef _ASM_GENERIC_BITOPS_HWEIGHT_H_ +#define _ASM_GENERIC_BITOPS_HWEIGHT_H_ + +extern unsigned int hweight32(unsigned int w); +extern unsigned int hweight16(unsigned int w); +extern unsigned int hweight8(unsigned int w); +extern unsigned long hweight64(__u64 w); + +#endif /* _ASM_GENERIC_BITOPS_HWEIGHT_H_ */ |
