--- /dev/null
+/* array structure interface version 3 declarations */
+
+#if !defined(PG_ARRAYINTER_HEADER)
+#define PG_ARRAYINTER_HEADER
+
+static const int PAI_CONTIGUOUS = 0x01;
+static const int PAI_FORTRAN = 0x02;
+static const int PAI_ALIGNED = 0x100;
+static const int PAI_NOTSWAPPED = 0x200;
+static const int PAI_WRITEABLE = 0x400;
+static const int PAI_ARR_HAS_DESCR = 0x800;
+
+typedef struct {
+ int two; /* contains the integer 2 -- simple sanity check */
+ int nd; /* number of dimensions */
+ char typekind; /* kind in array -- character code of typestr */
+ int itemsize; /* size of each element */
+ int flags; /* flags indicating how the data should be */
+ /* interpreted */
+ Py_intptr_t *shape; /* A length-nd array of shape information */
+ Py_intptr_t *strides; /* A length-nd array of stride information */
+ void *data; /* A pointer to the first element of the array */
+ PyObject *descr; /* NULL or a data-description */
+} PyArrayInterface;
+
+#endif