convert from char* to unsigned char*

D J · 02-19-2004, 10:56 PM

Hi all

how can i convert char* to unsigned char*??

class UDPMessage{
public:
UDPMessage(unsigned char* message, unsigned int length);
}

int main(){
char message[1000];
cout << "enter your message";
cin.get(message, 1000);

UDPMessage(message, 1000); //Compiling error here, says "invalid convert from char* to unsigned char*
}

thanks a lot
dejie

lyle_s · 02-20-2004, 12:00 AM

You can use reinterpret_cast, but it's a horrible idea, and I really hesitate to suggest it--but there I did.

There must be a better way:

Code:

#include <iostream>
using namespace std;

class UDPMessage {
	public:
		UDPMessage(unsigned char* message, unsigned int length) {
			for (size_t index(0); index <= length; ++index) {
				cout << message[index];
			}
		}
};

 
int main() {
	char message[1000];
	cout << "enter your message";
	cin.get(message, 1000);
 
	UDPMessage(reinterpret_cast<unsigned char*>(message), cin.gcount());

}

Lyle

D J · 02-20-2004, 04:09 AM

Thanks Lyle, alothough i don't kow what you mean the "horrible thing" is, it works fine so far