/in/foo.cc: In function 'int main()':
/in/foo.cc:13:2: error: expected ';' before 'd'
  d=b+c
  ^
/in/foo.cc:8:6: warning: unused variable 'd' [-Wunused-variable]
  int d;
      ^
/in/foo.cc:9:6: warning: unused variable 'e' [-Wunused-variable]
  int e;
      ^