Managed C++/CLI

<br />
#define MAXBUFLEN 1000<br />
DWORD __stdcall ListenerThread( void* listen )<br />
{<br />
	WSADATA WsaData;<br />
    int iResult = WSAStartup( MAKEWORD(2,2), &WsaData );<br />
    if( iResult != NO_ERROR )<br />
       Debug("Error at WSAStartup");<br />
<br />
	int sockfd;<br />
	struct sockaddr_in my_addr;    // my address information<br />
	struct sockaddr_in their_addr; // connector's address information<br />
	int addr_len, numbytes;<br />
	<br />
	if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) == -1)<br />
		Debug("Socket Creation Error");<br />
	<br />
	my_addr.sin_family = AF_INET;			// host byte order<br />
	my_addr.sin_port = htons(8604);			// short, network byte order<br />
	my_addr.sin_addr.s_addr = INADDR_ANY;	// automatically fill with my IP<br />
	memset(&(my_addr.sin_zero), '\0', 8);	// zero the rest of the struct<br />
	<br />
	if (bind(sockfd, (struct sockaddr *)&my_addr, sizeof(struct sockaddr)) == -1)<br />
		Debug("Bind Error");<br />
<br />
	addr_len = sizeof(struct sockaddr);<br />
	char* xrec = (char*)malloc(MAXBUFLEN);<br />
	while(true)<br />
	{<br />
		if ((numbytes=recvfrom(sockfd, xrec, MAXBUFLEN-1, 0, (struct sockaddr *)&their_addr, &addr_len)) == -1)<br />
				Debug("Recieve Error");<br />
		xrec[numbytes] = '\0';<br />
	}<br />
<br />
	return 0;<br />
}<br />

error C2451: conditional expression of type 'class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >' is illegal
        No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called

...
packetCount = fillPackets(inputString);
cout << "Filled " << packetCount << " packets." << endl;
...

int fillPackets(string inputString) {
	string aPacket;
	int packetCount = 0;
	int x = 0;

	cout << "Filling packets...";
	
	while (aPacket = getNextPacket(inputString)) { <code><-- ERROR!</code>
		packets[x++] = new packet(aPacket);
		packetCount++;
	}
		
	cout << "done." << endl;
	return packetCount;
}

string getNextPacket(string packetString) {
	string aPacket;
	static string::const_iterator theIterator = packetString.begin();
	int start = 0, end = 0;

	// search for the pattern \x00\x00\x00\x??\x00\x00\x00
	// - end of ethernet preamble
	while (theIterator != packetString.end() &&
		*theIterator != (char) 0 &&
		*(theIterator + 1) != (char) 0 &&
		*(theIterator + 2) != (char) 0 &&
		*(theIterator + 3) == (char) 0 &&
		*(theIterator + 4) != (char) 0 &&
		*(theIterator + 5) != (char) 0 &&
		*(theIterator + 6) != (char) 0) {

		++theIterator;
		start++;
	}

	if (theIterator == packetString.end())
		return NULL;
			
	theIterator += 7;
	start += 7;

	// search for the pattern \x00\x00\x00\x??\x00\x00\x00
	// - end of ethernet preamble
	while (theIterator != packetString.end() &&
		*theIterator != (char) 0 &&
		*(theIterator + 1) != (char) 0 &&
		*(theIterator + 2) != (char) 0 &&
		*(theIterator + 3) == (char) 0 &&
		*(theIterator + 4) != (char) 0 &&
		*(theIterator + 5) != (char) 0 &&
		*(theIterator + 6) != (char) 0) {	
			
		++theIterator;
		end++;
	}

	if (theIterator == packetString.end())
		return NULL;

	aPacket = packetString.substr(start, end);
	return aPacket;
}