# define MAXDIM  40
# define SZ_BUF  79

typedef struct {
	void *data;			/* pointer to data buffer */
	void *imag;			/* imaginary part, or NULL */
	long ndim;			/* dimension (rank) of array */
	long nelem;			/* total number of elements */
	long shape[MAXDIM];		/* length of each axis */
	long strides[MAXDIM];
	long byteoffset;
	long bytestride;
	long itemsize;
	char type[SZ_BUF+1];
	/* flags */
	int C_array;		/* aligned, contiguous, and not byteswapped */
	int writeable;
	int aligned;
	int contiguous;
	int byteswap;
} NDInfo;

typedef enum 
{
  tBool,
  tInt8, tUInt8,
  tInt16, tUInt16,
  tInt32, 
  tFloat32, tFloat64,
  tComplex64, tComplex128
} NumericType;
#define nNumericType (tComplex128+1)

#define NA_Begin() Py_Initialize(); import_libnumarray(); NA_Init();
#define NA_End()   NA_Done(); Py_Finalize();

#define NA_OFFSETDATA(info) ((void *) (((char*)(info).data)+(info).byteoffset))