Question

I am a C++ developer and recently started working on WPF. Well I am using Array.Copy() in my app and looks like I am not able to completely get the desired result.

I had done in my C++ app as follows:

static const signed char version[40] = {
'A', 'U', 'D', 'I', 'E', 'N', 'C', 'E',   // name
 0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,   // reserved,  firmware size
 0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,   // board number
 0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,   // variant, version, serial
 0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0     // date code, reserved
};

unsigned char sendBuf[256] = {};
int memloc = 0;
sendBuf[memloc++] = 0;
sendBuf[memloc++] = 0;

// fill in the audience header
memcpy(sendBuf+memloc, version, 8); // the first 8 bytes
memloc += 16; // the 8 copied, plus 8 reserved bytes

I did the similar operation in my WPF (C#) app as follows:

Byte[] sendBuf = new Byte[256];

char[] version = 
        {
                'A', 'U', 'D', 'I', 'E', 'N', 'C', 'E',         // name
                '0', '0', '0', '0', '0', '0', '0', '0' ,        // reserved,  firmware size
                '0', '0', '0', '0', '0', '0', '0', '0' ,        // board number
                '0', '0', '0', '0', '0', '0', '0', '0' ,        // variant, version, serial
                '0', '0', '0', '0', '0', '0', '0', '0'          // date code, reserved
        };

// fill in the address to write to -- 0
        sendBuf[memloc++] = 0;
        sendBuf[memloc++] = 0;

        // fill in the audience header
        Array.Copy(sendBuf + memloc, version, 8);   // the first 8 bytes
        memloc += 16;

But it throws me an error at Array.Copy(sendBuf + memloc, version, 8); as Operator '+' cannot be applied to operands of type 'byte[]' and 'int'.

How can achieve this???? 🙂 please help 🙂

Answer 1

for(int i = 0; i < 8; i++)
{
    sendBuf[i+memloc] = Convert.ToSByte(version[i]);
}