Re: [ft-devel] FreeType compatibility with C++ managed extensions

[David Turner]

Hi Graham,

an identifier like "generic" is part of the public API and is already used
by third-party libraries (e.g. Pango). There is thus a _very_ slim chance
that we're going to change it. On the other hand, "internal" is not supposed
to be used by clients, so it could be changed.

There might a solution by using some ugly processors tricks, with a small
price to pay for managed-C++ users which should use one or two distinct
identifiers (e.g. "generik" instead of "generic")

Do you have a complete list of problematic keywords ?

Regards,

- David Turner
- The FreeType Project  (www.freetype.org)


Graham Asher a écrit :

> Dear FreeTypers,
>
> I had some second thoughts about making FreeType run under C++ managed
> extensions.
>
> You have to compile everything as C++, not C. That causes compatibility
> problems. To quote Microsoft
> (http://msdn2.microsoft.com/en-us/library/ms173265): "The C++ type-safety
> rules are strict, so type conversions must be made explicit with casts. For
> example, malloc returns a void pointer, but can be assigned to a pointer to
> any type in C with a cast:" ... and "Identifiers used in C code that happen
> to be keywords in C++ (such as virtual, new, delete, bool, true, false,
> etc.) must be renamed. This can generally be done with simple
> search-and-replace operations.".
>
> This alone makes my original idea impractical :-(
>
> So my original impression that all I had to do was change identifiers in
> header files #included by C++ was incorrect.
>
> Therefore I withdraw my proposal. (It may still be possible to use FreeType
> in what Microsoft call a 'mixed assembly' - part managed C++ and part
> unmanaged C/C++ - the unmanaged part would be FreeType - but the header
> files would still cause a problem to any managed code that needed to call
> FreeType functions.)
>
> Best regards,
>
> Graham Asher
>
>
>
>
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