Re: A Question that really bothers me...

peter koch <>
Tue, 26 Feb 2008 10:07:57 -0800 (PST)
On 26 Feb., 10:33, "" <> wrote:

Ok now the problem is this.

I have compiled some old code with Visual Studio 2008 (the code was
originally writen in Visual Studio 6) and i have this error:

Error 1 error C2681: 'void *' : invalid expression type fo=


dynamic_cast c:\Works\BaCCTester\Dev\Addins\Utils
\CommonDataManipulators\Sources\CommonDataFree.cpp 121

and the problematic line of code is this:
FunctionResponse* pFunctionResponse =
ACE_dynamic_cast(FunctionResponse*, data);

So it is logicaly that dynamic_cast does not work for void-pointers
since when I converted the pointer to void I have given up all type
information. But what makes me think twice about the corectness of the
previous sentence is that this code compiles perfectly under Visual
Studio 6. I would like to know more about this issue so any help,
references, links and so are highly appriciated.

If data is of type void* or FunctionResponse is of type void, the code
above should not work.
Visual Studio 6 probably got this wrong - it is a very old compiler.


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