H5Adelete_by_idx

herr_t H5Adelete_by_idx(hid_t loc_id,  const  char *  obj_name,  int  idx_type,  int  order,
       hsize_t n,  hid_t lapl_id)

Deletes an attribute by index.

`loc_id`	Location identifier
`obj_name`	Name of the object
`idx_type`	Index type (H5_INDEX)
`order`	Iteration order (H5_ITER_ORDER)
`n`	Attribute index
`lapl_id`	Link access property list identifier

Non-negative on success, negative on failure.