Vectors in C++

[Robert Clint <rklint@execpc.com>]

Greetigns all,

I am teaching myself vectors adn have a pretty good grasp of them but I am
having trouble when attempting to create a multidimensional vector of
classes. I am trying to have an array that will hold an 'X' and 'Y'
cood and when accessed return the information in the class at that
location. 

i.e.
class cSquare{
//some stuff, mutators, inspectors,private data members,etc.
  cSquare();
  void SetFlag(bool);
  bool GetFlag();
};

vector< vector<cSquare> > vBoxes;

What I want to know is how do I access or set a member.  Currently I am
doing something like this:

vBoxes[x][y].SetFlag(true);
if(!vBoxes[x][y].GetFlag())
{
  //do stuff...
}

My code compiles ok but it doesn't seem to be setting my flags right.
Does anyone know of a tutorial anywhere on vectors?  Or am I missing
something?  My book has maybe 3 pages on multidimensional vectors and they
are all for char type only.  Another question I have is, when I declare my
vector, is it automatically initialized using the default constructor of
cSquare?

Thanks for all the help in advance!

Rob <===Wannabe old fart game programmer

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