如何比较c中2个整数的位数(不含数组和字符串)

#include <stdio.h>

int countBits(int num) {
    int count = 0;
    while (num != 0) {
        num >>= 1;  // 右移一位
        count++;
    }
    return count;
}

int compareBitCount(int num1, int num2) {
    int count1 = countBits(num1);
    int count2 = countBits(num2);
    
    if (count1 > count2) {
        return 1;
    } else if (count1 < count2) {
        return -1;
    } else {
        return 0;
    }
}

int main() {
    int num1 = 10;
    int num2 = 15;
    
    int result = compareBitCount(num1, num2);
    
    printf("num1: %d, num2: %d\n", num1, num2);
    if (result > 0) {
        printf("num1的位数多于num2\n");
    } else if (result < 0) {
        printf("num1的位数少于num2\n");
    } else {
        printf("num1的位数等于num2\n");
    }
    
    return 0;
}