Re: [Mingw-users] Create a MinGW DLL to use with MSVC++

[Michael G. <mg...@te...>]

>  > suppose i have a utility function that uses for example
>  > std::vector, or std::string, or anyother C++ stndard libraries as a
>  > parameter I dont want to export this function to dll, but its being
>  > used by the exported functions internally, is this ok, or it also
>  > must have pure c api,
>=20
> I *think* this should be OK. That's what I meant when I said "Internal
> implementation might use C++". Experiment!

I'm using this regularly and it works without problems.

Inside the DLL you can basically use whatever you want. Generally when
mixing DLLs created by different compilers you should be aware you
might in fact be using different runtime libraries. If that happens
you should be aware of the following possibly incomplete list of caveats:
=2D don't mix malloc/free among different RT libs
=2D don't mix stdio among different RT libs
=2D when dealing with floating point different RT libs install and reinstall
  different floating point exception handlers. Be sure to call _fpreset()
  where appropriate (e.g. in the wrapping code).

The above probably does not apply to mixing MinGW and MSVC because they
should use the same RT libs but it definitely applies to mixing either
of the two with other compilers (e.g. Borland or IBM VAC).

Best,
Michael
=2D-=20
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