I'm working with an existing Visual Studio 2010 project, where I'm now supposed to add new functionality (Eigen and Point Cloud Library) into an existing method (let's call it foo()). I now that the project is using C++/CLI somehow. I have to admit I have no clue about C++/CLI, just read a little bit about it. However the class where foo() is declared and defined seems to be a regular C++ class, no ref or any other CLI identifier. But within foo() Handles (var^) are used. So I'm not quite sure if foo() is a managed function!? I can add pretty much regular C++ code to this function, but now I started with Eigen and PCL and a discovered some mysterious errors. For example, when I'm declaring this:
Eigen::Matrix3f m;
Everythings working fine. But when I'm doing this:
Eigen::Matrix4f m;
I get the following errors:
error C2711: 'fooclass::foo' : this functon cannot be compiled as managed, consider using #pragma unmanaged
error C3821: 'void fooclass::foo(void)': managed type or function cannot be used in an unmanaged function
So it is working with 3f but not with 4f! That is so strange and it's just one example. I can not recognize any pattern. In my understanding VS somehow thinks that Matrix4f is a managed function.
I would appreciate any tip! I don't even know where to start looking.
I don't know anything about CLI, but the only significant difference between Matrix3f and Matrix4f is that the second is vectorized and internally its data is requested to be aligned with __declspec(align(16)).