Structs to NSData to Structs?

Question

I have the following struct:

typedef enum
{
    kPacketTypeJoin = 1,
    kPacketTypeServerAcceptedJoin,
    kPacketTypeSelectedNumber,
} PacketTypes;    
typ         


        

Answer 1

// make a NSData object
NSData *myData = [NSData dataWithBytes:&myPacketJoin length:sizeof(myPacketJoin)];

// make a new PacketJoin
PacketJoin newJoin;
[myData getBytes:&newJoin length:sizeof(newJoin)];