C++ :: Fstream Doesn't Work In Combination With Linked Lists

Im about to program a RPG and, of course, the player has got an inventory. The items in this inventory are stored in a linked list and have IDs in form of strings.

player.cpp: (just the most relevant)

#include <list>
#include <string>
using namespace std;

[Code] ....

Of course, when the player saves the game, the inventory has to be saved too.

game.cpp(just the m. R.)
#include <fstream>
using namespace std;
class CGame{

[Code] .....

Now, in my code I write the linked list into the file savegames.sav

void CGame::save(CPlayer* player){
m_out.open("savegames.sav", ios::out);
m_out.write((char* ) &player->m_inventory, sizeof(player->m_inventory));
m_out.close();
}

In another function i load the list:

void CGame::load(CPlayer* player){
m_in.open("savegames.sav", ios::in);
m_in.read((char* ) player->m_inventory, sizeof(player->m_inventory));
m_in.read();
}

And when i access the loaded linked list with the .empty() function or so, Windows says the following:

<Mygame.exe> funktioniert nicht mehr (in English: doesnt run anymore).

I tried so much to fix that but i dint reach my aim.