22 lines
349 B
22 lines
349 B
/*
|
|
* Copyright (c) Hisilicon Technologies Co., Ltd. 2020-2020. All rights reserved.
|
|
* Description: bits.h
|
|
* Author: SmartMedia_BSP
|
|
* Create: 2020-06-23
|
|
*/
|
|
|
|
#ifndef BITSH
|
|
#define BITSH
|
|
|
|
#include <stddef.h>
|
|
|
|
/* get the '1' count */
|
|
int bits_count(uint32 nn);
|
|
|
|
/* find first bit set. */
|
|
int ffs(int nn);
|
|
|
|
int ffs64(uint64 nn);
|
|
|
|
#endif /* BITSH */
|