c语言实现循环位移的函数

循环左移

#include <stdio.h>
int lefttrot(int x, int n){
    if (n < 0) {
        printf("移动数目不可为负");
        return -1;
    }
    
    n %= 32;
    int book = x & (-1 >> (32 - n));
    return (x >> n) | (book << (32 - n));
}

int main(){
    printf("%d", lefttrot(-1, 100));
    return 0;
}

循环右移

#include <stdio.h>
int righttrot(int x, int n){
    if (n < 0) {
        printf("移动数目不可为负");
        return -1;
    }
    
    n %= 32;
    int book = x >> (32 - n);
    return (x << n) | book;
}

int main(){
    printf("%d", righttrot(-1, 100));
    return 0;
}