#include <boost/array.hpp>

  template
  < typename Value
  , unsigned... Lengths
  >
  struct
array_recur
;
  template
  < typename Value
  , unsigned Length0
  , unsigned... Lengths
  >
  struct
array_recur
  < Value
  , Length0
  , Lengths...
  >
: boost::array
  < array_recur<Value, Lengths...>
  , Length0
  >
{  
};
  template
  < typename Value
  , unsigned Length0
  >
  struct
array_recur
  < Value
  , Length0
  >
: boost::array
  < Value
  , Length0
  >
{  
};

int main()
{
    array_recur<int,2,3,4> a;
    a[0][0][0]=1;
    a[0][0][1]=2;
    a[1][1][1]=3;
    return a[0][0][0]+a[0][0][1]+a[1][1][1];
}