Function ArrayCast

src/backend/utils/adt/arrayfuncs.c:4705–4709

* Fetch array element at pointer, converted correctly to a Datum * * Caller must have handled case of NULL element */

 * Caller must have handled case of NULL element
 */
static Datum
ArrayCast(char *value, bool byval, int len)
{
	return fetch_att(value, byval, len);
}

/*
 * Copy datum to *dest and return total space used (including align padding)