Fstream binary

Kode 

memset(&user, 0, sizeof(user));

Kode 

#include <fstream>
#include <Windows.h>
#include <stdio.h>
#include <iostream>
using namespace std;

struct sUser
{
	LPSTR Username;
	LPSTR Password;
	LPSTR Email;

	int Point;

	sUser()
	{
		Username = new char[256];
		Password = new char[256];
		Email = new char[256];
	}

	~sUser()
	{
		delete[] Username;
		delete[] Password;
		delete[] Email;
	}
};

int main()
{
	sUser user;
	sUser read_user;
	char tmp[256];

	cout << "Skriv Username: ";
	cin >> user.Username;
	cout << endl << user.Username << endl;

	cout << "Skriv Password: ";
	cin >> user.Password;
	cout << endl << user.Password << endl;

	cout << "Skriv Email: ";
	cin >> user.Email;
	cout << endl << user.Email << endl;

	cout << "Skriv Point: ";
	cin >> user.Point;
	cout << endl << user.Point << endl;

	MessageBox(NULL, user.Username, "Hej", MB_ICONINFORMATION);

	sprintf(tmp, "%s.dll", (char*)user.Username);

	fstream file(tmp, ios::out | ios::binary);
	file.write(reinterpret_cast<char*>(&user), sizeof(user));
	file.close();

	fstream read_file(tmp, ios::in | ios::binary);
	file.read(reinterpret_cast<char*>(&read_user), sizeof(read_user));
	file.close();

	cout << read_user.Username << endl;
	MessageBox(NULL, read_user.Username, "Hej", MB_ICONINFORMATION);

	cout << "Finish" << endl;
	system("PAUSE");
}

Kode 

	sUser()
	{
		Username = new char[256];
        memset(Username, 0, 256);
		Password = new char[256];
        memset(Password, 0, 256);
		Email = new char[256];
        memset(Email, 0, 256);
	}

Kode 

    file.write(reinterpret_cast<char*>(user.Username), 256);
    file.write(reinterpret_cast<char*>(user.Password), 256);
    file.write(reinterpret_cast<char*>(user.Email), 256);
    file.write(reinterpret_cast<char*>(&user.Point), sizeof(user.Point));

Kode 

    file.read(reinterpret_cast<char*>(user.Username), 256);
    file.read(reinterpret_cast<char*>(user.Password), 256);
    file.read(reinterpret_cast<char*>(user.Email), 256);
    file.read(reinterpret_cast<char*>(&user.Point), sizeof(user.Point));

Nogen god grund til at new'e dine arrays i stedet for at have dem i din struct ?

I øvrigt er det lidt sært at sUser er en struct, det ville være mere logisk med en class.

Nogen god grund til at new'e dine arrays i stedet for at have dem i din struct ?

Ellers får jeg fejl for, at de ikk er "initialized".

Kode 

struct {
   char name[256];
   char mail[256];
   char pass[256];
};