/in/foo.cc: In function 'int main()':
/in/foo.cc:48:18: error: lvalue required as left operand of assignment
   v[0][i].real()=x,v[1][i].real()=y;
                  ^
/in/foo.cc:48:35: error: lvalue required as left operand of assignment
   v[0][i].real()=x,v[1][i].real()=y;
                                   ^