Three dimensional arrays of integers in C++ -

i find out safe ways of implementing 3 dimensional arrays of integers in c++, using pointer arithmetic / dynamic memory allocation, or, alternatively using stl techniques such vectors.

essentially want integer array dimensions like:

[ x ][ y ][ z ] 

x , y in range 20-6000 z known , equals 4.

have @ boost multi-dimensional array library. here's example (adapted boost documentation):

#include "boost/multi_array.hpp"  int main() {   // create 3d array 20 x 30 x 4   int x = 20;   int y = 30;   int z = 4;    typedef boost::multi_array<int, 3> array_type;   typedef array_type::index index;   array_type my_array(boost::extents[x][y][z]);    // assign values elements   int values = 0;   (index = 0; != x; ++i) {     (index j = 0; j != y; ++j) {       (index k = 0; k != z; ++k) {         my_array[i][j][k] = values++;       }     }   } }