View Compilation Error

0_0_34286596_2278.cpp: In function 'int main()':
0_0_34286596_2278.cpp:7:33: error: invalid operands of types 'int*' and 'int' to binary 'operator&'
  while(scanf("%d %d %d %d",&x1 &y1 &x2 &y2)!=EOF) 
                                 ^