use int64_t for octave_hdf5_id (bug #47858) * oct-hdf5-types.h (octave_hdf5_id): Use int64_t. * ls-hdf5.cc (check_hdf5_id_value): New static function. * ls-hdf5.h, ls-hdf5.cc (hdf5_read_next_data_internal): Rename from hdf5_read_next_data. Use HDF5 types directly. (hdf5_read_next_data): Now a wrapper around hdf5_read_next_data_internal. Use octave HDF5 types in the interface. (hdf5_h5g_iterate): New function. (read_hdf5_data): Pass hdf5_read_next_data_internal instead of hdf5_read_next_data to H5Giterate. * ov-cell.cc (octave_cell::load_hdf5): Call hdf5_h5g_iterate wrapper function instead of calling H5giterate directly. * ov-class.cc (octave_class::load_hdf5): Likewise. * ov-fcn-handle.cc (octave_fcn_handle::load_hdf5): Likewise. * ov-struct.cc (octave_struct::load_hdf5): Likewise.

--- a/libinterp/octave-value/ov-class.cc	Fri Jul 01 14:49:35 2016 -0400
+++ b/libinterp/octave-value/ov-class.cc	Sat Jul 02 10:19:44 2016 -0400
@@ -1589,8 +1589,8 @@
   H5Gclose (subgroup_hid);
 
   while (current_item < static_cast<int> (num_obj)
-         && (retval2 = H5Giterate (group_hid, name, &current_item,
-                                   hdf5_read_next_data, &dsub)) > 0)
+         && (retval2 = hdf5_h5g_iterate (group_hid, name, &current_item,
+                                         &dsub)) > 0)
     {
       octave_value t2 = dsub.tc;