When comparing some VO and X# DB functions I noticed these differences when no table is open.
VO
DBStruct() -> empty array
AFields() -> 0
X#
DBStruct() -> no table exception
AFields() -> no table exception
Ok, now the 2 cents question: The snippet is part of the VO-SP3 DBStruct() sources. Which essential piece of code is missing in the IF ! Used() condition branch ? :huh:
FUNCTION DbStruct() AS ARRAY PASCAL
LOCAL aStruct AS ARRAY
LOCAL nFCount AS DWORD
LOCAL nProps AS DWORD
LOCAL i,j AS DWORD
LOCAL aField AS ARRAY
LOCAL xNewVal AS USUAL
aStruct := {}
nFCount := FCount()
IF !Used()
ptrErrInfo := _VODBErrInfoPtr()
ptrErrInfo.dwGenCode := EG_NOTABLE
ptrErrInfo.dwSubCode := EDB_NOTABLE
ptrErrInfo.pszSubSystem := Cast2Psz("DBCMD")
ptrErrInfo.dwSeverity := ES_ERROR
ptrErrInfo.lCanDefault := .T.
ptrErrInfo.symFuncSym := #DBSTRUCT
DefErrorGen(ptrErrInfo)
ELSE
FOR i := 1 UPTO nFCount
aField := {}
...
I am not sure i am seeing something. I would prefer FCount() to be in there, but since this is not throwing an error, it is not doing harm in practice. There's no RETURN in there either, but I think this is as designed, to allow the function (in VO) to return an empty array if something went wrong. Do you mean something about how the error is invoked?
question: The snippet is part of the VO-SP3 DBStruct() sources. Which essential piece of code is missing in the IF ! Used() condition branch ? :huh: 
