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crash on std vector assignment

Nov 27, 2011 at 2:36pm
shadowvillian (135)
I keep getting a crash on assignment of a vector of a class to a vector of a class(they are the same type of course).

call stack:

std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string() ()
Card::~Card(this=0x289e6972, __in_chrg=<value optimized out>)
std::_Destroy<Card>(__pointer=0x289e6972)
std::_Destroy_aux<false>::__destroy<__gnu_cxx::__normal_iterator<Card*, std::vector<Card> > >(__first=..., __last=...)
std::_Destroy<__gnu_cxx::__normal_iterator<Card*, std::vector<Card> > >(__first=..., __last=...)
std::_Destroy<__gnu_cxx::__normal_iterator<Card*, std::vector<Card> >, Card>(__first=..., __last=...)
std::vector<Card, std::allocator<Card> >::operator=(this=0x3649d0, __x=...)
Framework_ListItemViewer::Load(this=0x364870, CardData=..., EventQueue=0x27d9a00, type=2)
Core::LoadCardData(this=0x28f918)
main()

heres the class for the object:
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class Card
{
    public:

    std::string Name;
    std::string FlipSideName;
    std::string Rarity;
    std::string Color;
    std::string Type;
    std::string Set;
    std::string Link;
    int Id;
    float LowPrice, HighPrice, AveragePrice;

    int CMC;
    int Power;
    int Toughness;
    int NumOf;
    int HasFlipSide;

    Card(std::string name, std::string rarity, std::string color, std::string type, std::string set,
         int cmc, int p, int t, int num, int flip, std::string flip_name): Id(0), LowPrice(0.0), HighPrice(0.0), 
AveragePrice(0.0), NumOf(0), HasFlipSide(NO_FLIP_SIDE)
    {
        Name = name;
        Rarity = rarity;
        Color = color;
        Type = type;
        Set = set;
        CMC = cmc;
        Power = p;
        Toughness = t;
        NumOf = num;
        HasFlipSide = flip;
        FlipSideName = flip_name;
    }

    Card(std::string name, std::string rarity, std::string color, std::string type, std::string set,
         int cmc, int p, int t, int num): Id(0), LowPrice(0.0), HighPrice(0.0),
 AveragePrice(0.0), 
NumOf(0), HasFlipSide(NO_FLIP_SIDE)
    {
        Name = name;
        Rarity = rarity;
        Color = color;
        Type = type;
        Set = set;
        CMC = cmc;
        Power = p;
        Toughness = t;
        NumOf = num;
    }

    Card& operator= (const Card& NewCard) //assignment
    {
        Name = NewCard.Name;
        Rarity = NewCard.Rarity;
        Color = NewCard.Color;
        Type = NewCard.Type;
        Set = NewCard.Set;
        CMC = NewCard.CMC;
        Power = NewCard.Power;
        Toughness = NewCard.Toughness;
        NumOf = NewCard.NumOf;
        HasFlipSide = NewCard.HasFlipSide;
        FlipSideName = NewCard.FlipSideName;

        return *this;
    }

    Card (const Card& NewCard) //copy constructor
    {
        *this = NewCard;
    }

    Card(){}
    ~Card(){} //crashes on this line
};


Heres the initial line it crashes on
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int Framework_ListItemViewer::Load(vector<Card> CardData, ALLEGRO_EVENT_QUEUE *EventQueue, int type)
{
    ListType = type;
    CardList = CardData; //crasehes on this. they are both std::vector<Card>

    if(FlipButton.Load(260, 300, 25, 25, "Buttons/FlipButton_Up.png", "Buttons/FlipButton_Selected.png") == -1)
    {
        return ShowMessageBox(al_get_current_display(), "Error", "Failed to load flip button", ALLEGRO_MESSAGEBOX_ERROR);
    }

    if(QuickSearchTxtBox.Load(290, 10, 250, 25, 18, 50, EventQueue) == -1)
    {
        return ShowMessageBox(al_get_current_display(), "Error", "Failed to load textbox", ALLEGRO_MESSAGEBOX_ERROR);
    }

    if(ScrollBar.Load(1165, 70, 25, 475, CardList.size(), MaxItemsDisplayed, 290, 10, 1165, 635) == -1)
    {
        return ShowMessageBox(al_get_current_display(), "Error", "Failed to load scroll bar", ALLEGRO_MESSAGEBOX_ERROR);
    }

    return 0;
}


Anyone have any idea whats causing this ???
Nov 27, 2011 at 3:41pm
Peter87 (11244)
I don't see the problem here. It is possible that it's caused by other parts of you program.
Nov 27, 2011 at 5:20pm
shadowvillian (135)
Yeah this is really bugging me. Does the call stack hint to any clues?
Nov 27, 2011 at 6:25pm
Peter87 (11244)
It just says it crash inside the string destructor. These kind of errors could be caused by memory corruption because you dereference a dangling pointer, access an array out of bounds, etc. It is not possible to see from the code you have posted what is wrong. You could try to use a debugger like valgrind helps you detect many memory-related errors.
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