Hi,

I don't understand what's wrong with the following code.
It works in debug mode but generate a System.NullReferenceException in
release mode (see comment to locate the line where this exception
occurs).
I am using VS 2003, Win XP.
This class (SerialBuffer) is a managed C++ class developed to pass a char
buffer to unmanaged C++ legacy code in a mixed mode DLL.
This class is instantiated in C# code.
I made sample code here below to illustrate the problem (simplified as
much as I could).

// code.h

__gc public class SerialBuffer
{
private:
    unsigned char    __nogc *_buffer;

public:
    SerialBuffer (short bufferNr);
    ~SerialBuffer ();
}

// code.cpp

SerialBuffer::SerialBuffer (short bufferNr)
{
    _buffer = new unsigned char [16];        // this line fail in release
mode
}

SerialBuffer::~SerialBuffer ()
{
    delete _buffer;
}

// win app code.cs

private void Form1_Load(object sender, System.EventArgs e)
{
    SerialBuffer buf = new SerialBuffer (1);
}

Thanks in advance for your help,

Droopy.