求两个数max

#include<iostream>
using namespace std;

int max (int a, int b)
{
int array[2] = {a, b};
int i = (a - b) >> 31 & 0x1 ;

return array[i];
}

int main(void)
{

int a = 31, b = 6;
int m = 0;

m = max(a, b);

cout << m << endl;

return 0;
}