array inside structs c++

Question

I'm porting my program to C++, but I'm having a little bit of trouble. I have this code in C# creating a byte[] :

writer.New(0x484700C0);
    {
        writer += Functions.PadString("PTEmu", 0x10);
        writer += new byte[] { 0xC9, 0x32, 0xE0, 0x4D, 0xEB, 0x01 };
        writer.SkipBytes(6);
        writer += 1;
        writer += channels.Count; // sub count


        for (int i = 0; i < channels.Count; i++)
        {
            writer += Functions.PadString(channels[i].Item4, 0x20); // len = 0x20
            writer += Functions.PadString(channels[i].Item2, 0x14);
            writer += Functions.PadString(channels[i].Item2, 0x14);
            writer += Functions.PadString(channels[i].Item2, 0x14);


            writer += channels[i].Item3; // int, size = 4
            writer += channels[i].Item3;
            writer += channels[i].Item3;
            writer += 0;
        }


        writer += Functions.PadString("Clan", 32);
        writer += Functions.PadString("127.0.0.1", 0x14);
        writer += Functions.PadString("127.0.0.1", 0x14);
        writer += Functions.PadString("127.0.0.1", 0x14);
        writer += 80;
        writer += 80;
        writer += 80;
        writer.SkipBytes(12);
    }

I thought about doing something like:

struct PT_ServerList{
    int size;
    int opcode;
    char server[0x10];
    char bla[6];
    int reserved1;
    short reserved2;
    int unknow;
    int serverCount;
    ServerInfo servers[];
};

But after the servers[] I'd need to add more variables, but then the compiler doesnt accept the struct. What can I do to solve this?

Richard J. Ross III · Accepted Answer · 2012-05-19 17:28:34Z

2

Use a vector:

struct PT_ServerList {
    ...
    std::vector<ServerInfo> servers;
    ...
};

answered May 19, 2012 at 17:28

Richard J. Ross III

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Comments

Edward Loper · Accepted Answer · 2012-05-19 17:29:31Z

1

You probably want to use either:

ServerInfo *servers;

(in which case you'd need to allocate the array using "new[]" and deallocate it using "delete[]"); or:

std::vector<ServerInfo> servers;

(In which case you should consult the std::vector documentation for information about how to use it, if you haven't used std::vector before.

answered May 19, 2012 at 17:29

Edward Loper

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2 Comments

Leandro Battochio Over a year ago

it still not working, I wrote the contents to a .dat file and it is not showing the contents of servers

Leandro Battochio Over a year ago

I saw in olly, that the contents of servers is being added in another location of memory, not inside the PT_ServerList structure

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