error: redefinition of `class Array<T>'

[Paulo Cortes]

Hi

I am building an Array group of classes, I have base Array class with
derived vector, matrix and cube. Each derived class works fine separately,
but if I combine them in a program I get:

error: redefinition of `class Array<T>'

this happend beacuse when I :

#include <vector.h>
#include <matrix.h>
#include <cube.h>


array.h get included too, so the compiler triggers the error. The 
problem is that I have to include
array.h into the matrix, vector and cube header files in order to use 
the array base class.
Any help would be apprecciated. Many thanks

Paulo