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Create intermediate groups during dataset creation #13

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Create intermediate groups during dataset creation #13

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11 changes: 8 additions & 3 deletions h5read.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -414,7 +414,8 @@ DEFUN_DLD (h5create, args, nargout,
@deftypefn {Loadable Function} h5create (@var{filename}, @var{dsetname}, @var{size}, @var{key}, @var{val},...)\n\
\n\
Create a dataset with name @var{dsetname} and size @var{size} \n\
in the HDF5 file specified by @var{filename}.\n\
in the HDF5 file specified by @var{filename}. Intermediate groups\n\
are created as necessary.\n\
\n\
The vector @var{size} may contain one or several Inf (or \n\
equivalently: zero) values.\n\
Expand Down Expand Up @@ -1555,15 +1556,19 @@ H5File::create_dset (const char *location, const Matrix& size,
}
free (dims_chunk);
}


// create non-existent intermediate groups.
hid_t lcpl_list = H5Pcreate (H5P_LINK_CREATE);
H5Pset_create_intermediate_group (lcpl_list, 1);
dset_id = H5Dcreate (file, location, type_id, dspace_id,
H5P_DEFAULT, crp_list, H5P_DEFAULT);
lcpl_list, crp_list, H5P_DEFAULT);
if (dset_id < 0)
{
error ("Could not create dataset %s", location);
return;
}
H5Pclose (crp_list);
H5Pclose (lcpl_list);

}

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3 changes: 3 additions & 0 deletions test/h5test.m
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Expand Up @@ -110,6 +110,9 @@ function read_write_chunk_at(filename, dsetname, chunk, start)
%%%%%%%%
h5create("test.h5","created_dset_inf23",[ 2 3 4],'Datatype','int8', 'ChunkSize', [2 3 2])

%%%%%%%%
h5create("test.h5","/nonexistent/groups/created_dset_single",[1],'Datatype','single')

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
disp("Test h5write and h5read...")

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