Converting C++ library to C++.net library

[rfoletta]

Hi, I have an IPC library that is written in C++. I had created Managed C++ wrappers to provide .net access to the main classes but this approach has an undesired side affect. Because of the side affect I want to convert the entire library to C++.net. This is my first exposure to .net by the way.

I am having a problem with the following class.

public __gc class IPCByteArray : public IPCArrayBase {
    //friend class IPCUtil;
public:
    IPCByteArray() : mData(NULL)
                                     { setBytes(IPC_NULL_VAL, NULL, true); }
    IPCByteArray(int els) : mData(NULL)
                                     { setBytes(els, NULL, true); }
    IPCByteArray(int els, char src __gc []) : mData(NULL)
                                     { setBytes(els, src, true); }
    IPCByteArray(int els, char src __gc [], bool copysrc) : mData(NULL)
                                     { setBytes(els, src, copysrc); }
    IPCByteArray(const IPCByteArray& src) : mData(NULL)
[b]                                     { setBytes(src.mLen, src.mData, true); }[/b]
    ~IPCByteArray(void)              { clear(); }
    IPCObjectBase* copy(void)        { return new IPCByteArray(const_cast<const IPCByteArray&>(*this)); }
    void  clear()                    { if (mLen > 0) delete[] mData;
                                       mData=NULL; mLen=IPC_NULL_VAL; }
    bool  equals(const IPCObjectBase *val);

    const short getType()            { return ARY_TYPE; }
    const int   getTypeSize()        { return TYPE_SZ; }

    char* getBytes()                 { return mData; }

    void  setBytes()	                { setBytes(IPC_NULL_VAL,NULL,true); }
    void  setBytes(int els)	            { setBytes(els,NULL,true); }
    void  setBytes(int els, char src __gc [])	{ setBytes(els,src,true); }
    void  setBytes(int els, char src __gc [], bool copysrc);
protected:
    [b]char* mData;[/b]
private:
    static const short ARY_TYPE = IPC_TYPE_ARY_BYTE;
    static const int   TYPE_SZ  = IPC_SZ_BYTE;
};

The constructor with the bold code above is getting the compiler error.


c:\acssdktest\examples\ipc\ipcimpl.h(114) : error C2664: 'void aconnex_connectivity_services::IPCByteArray::setBytes(int,char __gc[],bool)' : cannot convert parameter 2 from 'char *const ' to 'char __gc[]'

Can only convert a __gc array to or from Object * or Array *


This IPCByteArray constructor takes an IPCByteArray as a parameter and tries to pass its mData data member to the setBytes() method. I tried making the mData a "char __gc * mData" but that caused other errors.

How do I make this conversion work?

Thanks for any help you can give me.