H5Lcreate_ud

herr_t H5Lcreate_ud(hid_t link_loc_id,  const  char *  link_name,  H5L_type_t link_type,
       const  void *  udata,  size_t udata_size,  hid_t lcpl_id,  hid_t lapl_id)

Creates a user-defined link.

Parameters

`link_cls_id`	User-defined link class identifier
`link_loc_id`	Location identifier where the link is created
`link_name`	Name of the new link
`udata`	User data for the link
`udata_size`	Size of the user data
`lcpl_id`	Link creation property list identifier
`lapl_id`	Link access property list identifier

Returns

Non-negative on success, negative on failure.