Re: Exported function mangaled name

From:

"Jonathan Wood" <jwood@softcircuits.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Fri, 6 Feb 2009 08:56:43 -0700

Message-ID:

<#zOILOHiJHA.1252@TK2MSFTNGP03.phx.gbl>

AFAIC, __declspace always mangles the name. The only way I've been able to
export unmangled names from a DLL is to create a .DEF file with an EXPORTS
section.

--
Jonathan Wood
SoftCircuits Programming
http://www.softcircuits.com
http://www.softcircuits.com/blog/

"Manish Agarwal" <manishkrishan@hotmail.com> wrote in message
news:eAbQZ7EiJHA.4448@TK2MSFTNGP05.phx.gbl...

Hi,

I am exporting following function:

TestFunc.h

extern "C" {
__declspec(dllexport) int __stdcall TestFunc(void);
}

TestFunc.cpp

__declspec(dllexport) int __stdcall TestFunc(void)
{
return 42;
}

When I compile the above with VS2005 for Windows 32 bit, the decorated
function name is "_TestFunc@0"

and when I compile it with VS2005 for Windows 64 bit, the decorated
function name is "TestFunc"

Why there is a difference, what I am missing here. Is it documented some
where ? Even I created a simple DLL using VS wizard and copied all project
setting for Win64 from Win32 settings. Nothing I changed manually in
project setting.

Regards,
Manish K. Agarwal

PS: Sorry I have to post it again because on other group, I was uanble to
get the exact answer.