Ambiguity with IID_IUnknown

gaspo100 · Post by **gaspo100** » Mon 07 Feb 2005 02:19

I've just installed SDAC 3.50 and when I try to compile my code with BCB5 I get the following errors:

utilcls.h(2778): E2015 Ambiguity between 'GUID_NULL' and 'Oledbc::GUID_NULL'

utilcls.h(3130): E2015 Ambiguity between 'IID_IUnknown' and 'Oledbc::IID_IUnknown'

Is there a way how to get arround this problem?

Ikar · Post by **Ikar** » Mon 07 Feb 2005 09:54

The problem is that both these identifiers are declared in Oledbc.hpp and in uticls.h.

If you need to use both these units you should remove from Oledbc.hpp corresponding declarations.

Guest · Post by **Guest** » Mon 07 Feb 2005 10:12

Thanks, it compiles now.

I wasn't sure if removing those declarations from oledbc.hpp would have any other implications.

anddenisov · Post by **anddenisov** » Sat 05 Mar 2011 06:41

Hi, I am using SDAC 4.80.0.55 with RAD Studio 2010
I use TMSStoredProc and TExcelApplication and get even errors

I comment lines:

Code: Select all

extern PACKAGE GUID IID_NULL;

extern PACKAGE GUID IID_IUnknown;

in oledbc.hpp, but cann`t compile my project, because i get error

[BCC32 Fatal Error] Excel_2K.h(172753): F1008 Out of memory

Can you help me, how can i using these components with excel?

AndreyZ · Post by **AndreyZ** » Thu 10 Mar 2011 13:43

I cannot reproduce the problem. Please try composing a small sample to demonstrate the problem and send it to andreyz*devart*com.