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  • c++将函数左旋转或右旋转


    //将16位数字左旋转或右旋转
    //original:0x2345
    //rotate left 0x5234
    //rotate right 0x3452
    
    #include <iostream>
    using namespace std;
    unsigned short int rotate16Left(unsigned short int num, int n) {
    	return (num >> n | num << (16 - n));
    	
    }
    unsigned short int rotate16Right(unsigned short int num, int n) {
    	return (num << n | num >> (16 - n));
    }
    int main()
    {
    	unsigned short int num = 0x2345;
    	printf("original:%#x
    ", num);
    	printf("rotated left:%#x
    ", rotate16Left(num,4));
    	printf("rotated right:%#x
    ", rotate16Right(num,4));
    
    	return 0;
    }
    
    
    
    随便用
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  • 原文地址:https://www.cnblogs.com/pqhuang/p/12890910.html
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