I have a set of struct definitions that are used by both C# managed components and unmanaged C/C++ components. Right now, the identical struct definitions exist separately in C/C++ and C# code - causing duplication and related chaos. What s the best way to maintain single definitions that can be used from both C# and C/C++? Thanks! Amit
P.S.: I m a C/C++ guy so if there s an obvious way to do this, I might be missing it completely!
I m not familiar with your project(s), obviously, but have you considered building a managed bridge for your library in C++/CLI? With the "It Just Works" hackering the C++/CLI compiler does for you, many times you ll be able to marshal and share managed types with native code and back and forth.
Again, I don t know if it s right for you without more specifics, but it might be worth looking into.
you need a IDL (interface definition language) try googling:
It all depends on what you want. all the above technologies have an IDL element to them, and come with their own set of baggage. I personally would stay low level C/C++ :D. So I would Google "Imatix GSL" and use the mentioned technology to model the problem in XML and generate the data structures in any programming language -- this technology is very simple and subtle and requires an experience programmer so if it doesn t make sense you should stick with an IDL.
-- edit: programming technique --
You can solve the problem by pure technique if you like. Chaos ensues when the rigor of engineering breaks down. If you make a decision to firewall and encapsulate the problem into pure C/C++ code you won t have to worry about the interface falling appart in your dependant code -- this is because any usefull language can interface with the ABI of your platform (simple C functions :P). The crux is not to expose internals, but just an interface with opaque types, such as numeric handles that represent objects and functions that may be performed on your types.
I once wanted to do so in one of my projects that had a hard separation between C# code and C code. Ideally, the C# code would have borrowed header files from the C code but:
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