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new: 统计前导0

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fslongjin
2022-08-18 23:29:51 +08:00
parent 77633e2f19
commit bf4226f6b9
2 changed files with 63 additions and 1 deletions
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9
kernel/common/math.h
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@ -1,3 +1,10 @@
#pragma once
#include "stddef.h"
int64_t pow(int64_t x, int y);
#include <arch/arch.h>
#if ARCH(I386) || ARCH(X86_64)
#include <arch/x86_64/math/bitcount.h>
#else
#error Arch not supported.
#endif
int64_t pow(int64_t x, int y);