Gingerbread MR1  |  2.3.7_r1
C++程序  |  15行  |  245 B 

#ifndef _ASM_GENERIC_BITOPS_FLS64_H_
#define _ASM_GENERIC_BITOPS_FLS64_H_

#include <asm/types.h>

static inline int fls64(__u64 x)
{
	__u32 h = x >> 32;
	if (h)
		return fls(h) + 32;
	return fls(x);
}

#endif /* _ASM_GENERIC_BITOPS_FLS64_H_ */