namespace boost
{
namespace python
{
namespace numpy
{

class ndarray : public object
{

public:

  enum bitflag
  {
    NONE=0x0, C_CONTIGUOUS=0x1, F_CONTIGUOUS=0x2, V_CONTIGUOUS=0x1|0x2,
    ALIGNED=0x4, WRITEABLE=0x8, BEHAVED=0x4|0x8,
    CARRAY_RO=0x1|0x4, CARRAY=0x1|0x4|0x8, CARRAY_MIS=0x1|0x8,
    FARRAY_RO=0x2|0x4, FARRAY=0x2|0x4|0x8, FARRAY_MIS=0x2|0x8,
    UPDATE_ALL=0x1|0x2|0x4, VARRAY=0x1|0x2|0x8, ALL=0x1|0x2|0x4|0x8
  };

  ndarray view(dtype const & dt) const;
  ndarray astype(dtype const & dt) const;
  ndarray copy() const;
  int const shape(int n) const;
  int const strides(int n) const;
  char * get_data() const;
  dtype get_dtype() const;
  python::object get_base() const;
  void set_base(object const & base);
  Py_intptr_t const * get_shape() const;
  Py_intptr_t const * get_strides() const;
  int const get_nd() const;

  bitflag const get_flags() const;

  ndarray transpose() const;
  ndarray squeeze() const;
  ndarray reshape(tuple const & shape) const;
  object scalarize() const;
};

ndarray zeros(tuple const & shape, dtype const & dt);
ndarray zeros(int nd, Py_intptr_t const * shape, dtype const & dt);

ndarray empty(tuple const & shape, dtype const & dt);
ndarray empty(int nd, Py_intptr_t const * shape, dtype const & dt);

ndarray array(object const & obj);
ndarray array(object const & obj, dtype const & dt);

template <typename Container>
ndarray from_data(void * data,dtype const & dt,Container shape,Container strides,python::object const & owner);
template <typename Container>
ndarray from_data(void const * data, dtype const & dt, Container shape, Container strides, object const & owner);

ndarray from_object(object const & obj, dtype const & dt,int nd_min, int nd_max, ndarray::bitflag flags=ndarray::NONE);
ndarray from_object(object const & obj, dtype const & dt,int nd, ndarray::bitflag flags=ndarray::NONE);
ndarray from_object(object const & obj, dtype const & dt, ndarray::bitflag flags=ndarray::NONE);
ndarray from_object(object const & obj, int nd_min, int nd_max,ndarray::bitflag flags=ndarray::NONE);
ndarray from_object(object const & obj, int nd, ndarray::bitflag flags=ndarray::NONE);
ndarray from_object(object const & obj, ndarray::bitflag flags=ndarray::NONE)

ndarray::bitflag operator|(ndarray::bitflag a, ndarray::bitflag b) ;
ndarray::bitflag operator&(ndarray::bitflag a, ndarray::bitflag b);

}