Help with solitaire game

[zero-impact]

OK so I am working on a project for my gr.12 cs class. The first part of the project is making a solitaire game playable by people.

My problem is that my program is crashing for no apparent reason.

c++:

#include <vector> #include <iostream> #include "card.h" using namespace std; class Mouse { public :     int x, y;     void add_card (Card *card);     bool down, down_last;     bool clicked(); protected :     vector <Card *> cards; }; void Mouse::add_card(Card *card) {     cards.push_back(card);         //This is where it crashes! } bool Mouse::clicked() {     return down && !down_last; //If the mouse is pressed down but wasnt pressed down the last time it was updated }

I have double checked that it is passing a valid pointer to the function. It just seems that the vector "cards" is not accepting anything. Also if I output cards.size() before push_back is called even once it outputs 8. I can supply more details upon request.

Any help is appreciated


Edit: This class represents the users mouse. The vector 'cards' holds the cards that the user is currently dragging from one stack to another.

[DtY]

Don't you have to do something to initialize a vector? (Or is that done automatically in c++?)

[zero-impact]

When I call cards.push_back(), it should dynamically allocate memory as far as I'm aware. I have a nearly identical set up for the other classes that contain a vector or stack of pointers to Card objects.

[saltpro15]

I think you may have to specify a size for the vector. I've had similar problems before

[zero-impact]

Already tried that, doesn't work. Not to mention it works perfectly fine in the other classes.

[zero-impact]

Found the problem and I hate myself for it...

Forgot to add Mouse mouse; to one of my main header files >.< It was only in the .cpp file.

[saltpro15]

*slow clap*