编辑代码

#include<stdio.h>
#define ZHENG(i)((i>> 31)== 0)
#define FU(i)((i>> 31)!= 0)
#define COMPARE(a,b)((ZHENG(a)&& FU(b))||(((ZHENG(a)&& ZHENG(b))||(FU(a)&&FU(b)))&&((((a)-(b))>> 31)== 0)))
int  main()
{
    int a = -4;
    int b = -5;
    printf("copmare a=%d, b=%d \n",a,b);

    if(COMPARE(a,b))
    {
        printf("a >= b\n");
    }
    else
    {
        printf("a < b\n");
    }
    return 0;
}