# 2309 Error in the Type Checking for Binary Types

---

I am exploring the possibility of porting EDB to FPC. When using FPC to compile the source code, it prompts an error in the TEDBExprValidater.CheckBinaryTypes complaining about duplicated set members in line 11408, 11419, 11486, 11496. Upon closer investigation, I found that SUBTYPE_MINMSEC had been duplicated. From the source code, it seems that the
second SUBTYPE_MINMSEC should be SUBTYPE_SECMSEC instead, but I'm not sure about it. I guess the duplicated set member escaped the Delphi compiler checking.