Variable Sized Struct C++

Question

Is this the best way to make a variable sized struct in C++? I don\'t want to use vector because the length doesn\'t change after initialization.

struct Pack         


        

Answer 1

You can use the "C" method if you want but for safety make it so the compiler won't try to copy it:

struct Packet
{
    unsigned int bytelength;
    unsigned int data[];

private:
   // Will cause compiler error if you misuse this struct
   void Packet(const Packet&);
   void operator=(const Packet&);
};