bug of VC6's _com_ptr_t might caused stack-overflow

[Bruise]

in VC6-SP5 with ProcessPack, \Include\comip.h, there's a serious bug might
cause overwrite:

HRESULT CreateInstance(LPCSTR clsidStringA, IUnknown* pOuter = NULL, DWORD
dwClsContext = CLSCTX_ALL) throw()

e.g, when we write code calling ADO like
pRstEmployee.CreateInstance("ADODB.Recordset"));
pRstEmployee->Open(....

Above code would lead to unexpected stack-overflow in release version

Very curiously, the comip.h seems had avoided this error in VC7 of VS2003 by
somehow.

Anybody know it's VC6SP5's bug or ProcessPack's bug?

[Jack Klein]

On Wed, 5 Nov 2003 22:07:20 +0800, "Bruise" <br********@163.net> wrote
in comp.lang.c++:

in VC6-SP5 with ProcessPack, \Include\comip.h, there's a serious bug might
cause overwrite:
There is no header named "comip.h" in standard C++, so this is
off-topic here.
HRESULT CreateInstance(LPCSTR clsidStringA, IUnknown* pOuter = NULL, DWORD
dwClsContext = CLSCTX_ALL) throw()
There is no C++ function named CreateInstance, the Windows API is just
as off-topic here as any other non-standard third party library.
e.g, when we write code calling ADO like
pRstEmployee.CreateInstance("ADODB.Recordset"));
pRstEmployee->Open(....
There is no such thing as ADO in C++, this is a Windows specific hack.
Above code would lead to unexpected stack-overflow in release version

Very curiously, the comip.h seems had avoided this error in VC7 of VS2003 by
somehow.

Anybody know it's VC6SP5's bug or ProcessPack's bug?

If you have problems with Microsoft's compiler or their libraries,
check the MSDN web site or their support groups in the
news:microsoft.public.* family. None of this has anything to do with
the C++ language.

--
Jack Klein
Home: http://JK-Technology.Com
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