When using C++ libraries, I would recommend you to use the same
compiler that was used when creating the libraries.
For C++, there is no single standard for the memory layout of data
objects, the placement of virtual method tables, the name mangling etc.
/Per W
On Wed, 25 Jan 2006, Wolfgang Wegner wrote:
> Dear list members,
>
> I am quite new to windows and C++ programming (did quite much C under
> unix up to now).
>
> My task is to write a program using a proprietary C++-API (device
> driver) which I only have in a binary version for VC6 or VS.net. I
> can compile using VC6, but would like to switch to Dev-C++ or plain
> MinGW/gcc. However, when linking against the library, I always get
> "undefined references" for the methods contained in the library.
>
> I tried converting the library using reimp, but apart from that it
> works other than expected (it gives me a bunch of object files that I
> can then again put together to a library using ar) this does not make
> any difference.
>
> The API in question can be found here:
> http://www.dektec.com/Downloads/Drivers.asp
> (same results with both VC6 and VS.NET version).
>
> My program is at the moment a modified version of "DtRecord" on the
> page "utilities", to get started.
>
> As already said, everything works fine with VC6, but I really would
> like to move to gcc for using GTK+ and other stuff... I am using dev-
> C++ 4.9.9.2 in the "full" version (including MinGW).
>
> I am not sure if it is really a "typical" VC++ problem or simply a
> difference in calling convention - but in the latter case, I have
> even less clue about how to get around it. Here an example nm output
> of the Symbol TsOutpChannel::SetTsRateBsp:
> My_Example.o:
> U __ZN13TsOutpChannel12SetTsRateBpsEii
> DTAPI.lib:
> 00000000 T ?SetTsRateBps@TsOutpChannel@@QAEKHH@Z
> For me it looks really strange, but I have absolutely no idea about
> symbol names in C++, so maybe somebody else can say more seeing these
> symbols...
>
> In case I left out some important information, please let me know.
>
> Regards,
> Wolfgang
>
>
>
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