STL question

[Pix]

Is there something that looks like a 2-dimensional array?

[RonHiler]

Not specifically, but most of them can be nested.

vector <vector <int>> SomeInt;

SomeInt.resize(100);
SomeInt[20].push_back(7);

printf("%i", SomeInt[20][0]);

will print 7

SomeInt[30].resize(20);

SomeInt[30][15] = 12;

and so on.

[Pix]

Turns out the CLR provides a template array definition that allows n-dimensional (not jagged) arrays:

array<int^, 2>
creates a 2-d array of int.

array<int^, 2> n = gcnew array<int^, 2> (3, 4);

I have a class that has such an array in it, and a 2-arg constructor. The ctor allocates the array as follows:

Hexes = gcnew array<Hex^, 2>( _x, _y );

One of the weird things (to me) about Java and .Net languages is that creating an array doesn't create the underlying objects. Map^m = gcnew Map(2, 3) creates a 6-element 2-d array. I have an output statement in the Hex ctor that does not get called.