I have a small question about vectors. I recently started using them but i'm having some trouble. I have a Sprite class and I made a vector of these sprites

vector<Sprite> Sprites;

but that's not the problem, the vector works fine. It's when I make a new sprite and add it into the vector for some reason the Bitmap data from the sprite is lost, or something.

I was using a for loop to draw the sprites

for(int i;i<Sprites.size();i++)
        {            
            masked_blit(Sprites.at(i).image,buffer,spos,sypos,x,y,16,20);
        }

but like I said. when I do this it doesn't draw the sprite.
I also tried loading the sprite into a temporary sprite.

for(int i;i<Sprites.size();i++)
        {
            pSprite=Sprites.at(i);
            masked_blit(pSprite.image,buffer,spos,sypos,x,y,16,20);
        }

but that doesn't work either.

Let me guess; your Sprite class does destroy_bitmap in its destructor.

Either don't do that, or implement complete copy semantics, or store pointers to sprites instead of sprites.

If the bitmap was messed up, wouldn't it crash the program?

Ok, first. My destructor doesn't destroy anything. It may just be that I'm having the program draw the bitmap wrong or something because if it didn't load the bitmap i would expect it to crash aswell. I have no idea other than that.

You're using variable i that is not initialized. Bad thing!

Then show the Sprite class.

I think Indeterminatus is somewhat right. You should use int for( int i=0;

And X-G is right too. Show us the class.

What do you mean I isn't initialized?

... exactly what he said. You declare int i in the for loop, but you never initialize it to 0. Also, you're not listening, because you didn't post your Sprite class.

I initialized i, don't know how I forgot.
Heres my sprite class if you dearly want to see it.

Actually the contents of ~Sprite() and Sprite() are the things that matter anything. Function names don't say much of what is going on in the functions themselves.

for(int i;i<Sprites.size();i++)
What do you think i starts at in the above code? Maybe it's 32423, or maybe 5436345, it. Is. Not. Initialized.

I got it figured out. Thanks for trying guys. I cant particularly say what it was but I think it has to do with the fact that I didn't initialize i.

That is a rather nasty contradiction you have there...

Shouldn't that be:

for(Vector<Sprite>::iterator = Sprites.begin(); i != Sprites.end(); i++)

or something like that? (Not sure if that begin/end is correct because I haven't used C++ STL in a while, I'm still in C#/.net generic mode).