Compiler / Linker mix-lang issues between W_FC_C_9[1].1.028 and W_FC_P_9[1].1.024

[agoverdhan]

I am having trouble with mixed language calls between the .028 and .024 releases of IVF for Windows! Anybody else?

I am new to IVF, having started with the .024 package andinstalled the .028 package in an attempt to see if the ENTRY call issue (see previous post) had been resolved. I had had no trouble with mixed language calls but things went downhill with .028 even though no changes were made to the project configurationor interface statements. After I spent a few hours, I reinstalled .024 and lo! it worked again. I have again installed .028 and have the same issue. Through DUMPBIN I see that the compiler is adding @nn to the ALIAS name with /iface:cvf in .028 but not in .024 yielding a slew of the following.

sdlflib_lib.lib(SIOLIB2.obj) : error LNK2019: unresolved external symbol _isdl_siocreateandmapfile@20 referenced in function _SIO_OPEN

What am I missing? Will try any suggestions -- I have .028 back on my machine...

The interface is as follows:

INTERFACE
INTEGER*4 FUNCTION isdl_siocreateandmapfile (lpFileName, nBytes, lpszMapName, phFile, phMap)

!DEC$ ATTRIBUTES C:: isdl_siocreateandmapfile
!DEC$ ATTRIBUTES ALIAS:"_isdl_siocreateandmapfile":: isdl_siocreateandmapfile

CHARACTER*(*) lpFileName
INTEGER*4 nBytes
CHARACTER*(*) lpszMapName
INTEGER*4 phFile
INTEGER*4 phMap

!DEC$ ATTRIBUTES REFERENCE :: lpFileName
!DEC$ ATTRIBUTES VALUE :: nBytes
!DEC$ ATTRIBUTES REFERENCE :: lpszMapName
!DEC$ ATTRIBUTES REFERENCE :: phFile
!DEC$ ATTRIBUTES REFERENCE :: phMap

END FUNCTION
END INTERFACE

The C function prototype is:

int

isdl_siocreateandmapfile(LPCSTR lpFileName, DWORD nBytes, LPSTR lpszMapName, HANDLE *phFile, HANDLE *phMap)

Thanks for the help
--arvind
PS: I know I need to upgrade my style of type declarations... sigh...

[anthonyrichards]

Why not try the following:

extern "C" {int__cdecl isdl_siocreateandmapfile(LPCSTR *lpFileName, DWORD nBytes, LPSTR *lpszMapName, HANDLE *phFile, HANDLE *phMap) };

and

INTERFACE
INTEGER*4 FUNCTION isdl_siocreateandmapfile (lpFileName, nBytes, lpszMapName, phFile, phMap)

!DEC$ ATTRIBUTES C, REFERENCE:: isdl_siocreateandmapfile
!DEC$ ATTRIBUTES ALIAS:"_isdl_siocreateandmapfile":: isdl_siocreateandmapfile

CHARACTER*(*) lpFileName
INTEGER*4 nBytes
CHARACTER*(*) lpszMapName
INTEGER*4 phFile
INTEGER*4 phMap

!DEC$ ATTRIBUTES REFERENCE :: lpFileName
!DEC$ ATTRIBUTES VALUE :: nBytes
!DEC$ ATTRIBUTES REFERENCE :: lpszMapName
!DEC$ ATTRIBUTES REFERENCE :: phFile
!DEC$ ATTRIBUTES REFERENCE :: phMap

END FUNCTION
END INTERFACE

[agoverdhan]

That did not do it... thanks for the suggestion.

But I got it figured, I think... the .028 may be enforcing the 72 char limit while the .024 may not.
Also, it seems the .024 supported the old hack and .028 does not...

INTERFACE TO INTEGER*4 FUNCTION isdl_SioCreateAndMapFile (lpFileName, nBytes, lpszMapName, phFile, phMap)
CHARACTER*(*) lpFileName[reference]
INTEGER*4 nBytes [value]
CHARACTER*(*) lpszMapName[reference]
INTEGER*4 phFile [reference]
INTEGER*4 phMap [reference]
END

--arvind

[Steven_L_Intel1]

I would be very surprised if either of those suppositions were true.

[agoverdhan]

Steve,I would not bet against you!But that's what it took for me to get it working.

Go to 132 column fixed (actually 80 column also worked). That got the !DEC$ ALIAS accepted. I made no changes other changes to the command line

All my interfaces were in the "old" style and that worked for me that way for 10 years or so! Since I saw no documentation supporting that form I changed the one I presented earlier. Once Igot that one going then it was a matter of changing the rest of them. The "old" ones did not work.

I did not have to make these adjustments for the previous package! The project came out of CVF and I used the extract tool to separate out the C and Fortran. I had no issues with .024 but somehow .028 required me to make the changes I mentioned.

I went back and tried again == same result!

regards

--arvind