It's not working...

void sortInventory(Inventory* inventory){
    Inventory temp;
    //Copy the inventory to "temp"
    for(int i = 0; i < 10; i++){
        temp.items[i] = inventory->items[i];
        temp.quantity[i] = inventory->quantity[i];
    }
    //Finally, sort based on item IDs
    for(int i = 0; i < 10; i++){
        for(int j = 0; j < 256; j++){
            if(temp.items[i] == j){
                inventory->items[i] = temp.items[i];
                inventory->quantity[i] = temp.quantity[i];
            }
        }
    }
}