In article <btoppc$f6q$1 at sea.gmane.org>, "NamO" <kang at archi.cse.cau.ac.kr> wrote: > Mmmmmmmm......... > > and then How can I solve this problem? > Would you say the solution. > Thank you. Either use a different name for your operator, or specify the "+" that you want by writing "OperationTest.+" instead of "+". -- Ashley Yakeley, Seattle WA