File: hdf5.pd

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libpdl-io-hdf5-perl 1:0.73-5
  • links: PTS, VCS
  • area: main
  • in suites: buster, sid
  • size: 596 kB
  • sloc: perl: 1,544; makefile: 14
file content (2757 lines) | stat: -rwxr-xr-x 59,239 bytes parent folder | download | duplicates (2)
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use Config;

our $VERSION = '0.73';
pp_setversion(qq{'$VERSION'});

# Necessary includes for .xs file
pp_addhdr(<<'EOH');
#include <hdf5.h>
#define PDLchar pdl
#define PDLuchar pdl
#define PDLshort pdl
#define PDLint pdl
#define PDLlong pdl
#define PDLfloat pdl
#define PDLdouble pdl
#define uchar unsigned char
EOH

pp_bless ("PDL::IO::HDF5");

                 
pp_addpm(<<'EOPM');


=head1 NAME

PDL::IO::HDF5 - PDL Interface to the HDF5 Data Format.


=head1 DESCRIPTION

This package provides an object-oriented interface for L<PDL>s to
the HDF5 data-format. Information on the HDF5 Format can be found
at the HDF Group's web site at http://www.hdfgroup.org .

=head2 LIMITATIONS

Currently this interface only provides a subset of the total HDF5 library's
capability. 

=over 1

=item *

Only HDF5 Simple datatypes are supported. No HDF5 Compound datatypes are supported since PDL doesn't
support them.

=item *

Only HDF5 Simple dataspaces are supported.

=back

=head1 SYNOPSIS

  use PDL::IO::HDF5;

  # Files #######
  my $newfile = new PDL::IO::HDF5("newfile.hdf");        # create new hdf5 or open existing file.
  my $attrValue = $existingFile->attrGet('AttrName');    # Get attribute value for file
  $existingFile->attSet('AttrName' => 'AttrValue');      # Set attribute value(s) for file

  # Groups ######
  my $group = $newfile->group("/mygroup");               # create a new or open existing group
  my @groups = $existingFile->groups;      	         # get a list of all the groups at the root '/'
					                 # level.
  my @groups = $group->groups;             	         # get a list of all the groups at the "mygroup"
					                 # level.
  my $group2 = $group->group('newgroup');                # Create/open a new group in existing group "mygroup"

  $group->unlink('datasetName');                         # Delete a dataset from a group

  $group->reference($dataset,'refName',\@start,\@count); # Create a scalar reference to a subregion of a
                                                         # dataset, with specified start index and count.

  my $attrValue = $group->attrGet('AttrName');           # Get attribute value for a group
  $group->attrSet('AttrName' => 'AttrValue');            # Set attribute value(s) for a group
  $group->attrDel('AttrName1', 'AttrName2');             # Delete attribute(s) for a group
  @attrs = $group->attrs;                                # Get List of attributes for a group

  # Data Sets ########
  my $dataset = $group->dataset( 'datasetName');         # create a new or open existing dataset
						         #  in an existing group
  my $dataset = $newfile->dataset( 'datasetName');       # create a new or open existing dataset
						         #  in the root group of a file

  my $dataset2 = $newfile->dataset( 'datasetName');      # create a new or open existing dataset
						         # in the root group.
  my @datasets =  $existingFile->datasets;               # get a list of all datasets in the root '/' group
  my @datasets =  $group->datasets;                      # get a list of all datasets in a group
  @dims = $dataset->dims;                                # get a list of dimensions for the dataset
  $pdl = $dataset->get();                                # Get the array data in the dataset
  $pdl = $dataset->get($start,$length,$stride);          # Get a slice or hyperslab of the array data in the dataset
  $dataset->set($pdl, unlimited => 1);                   # Set the array data in the dataset
  my $attrValue = $dataset->attrGet('AttrName');         # Get attribute value for a dataset
  $dataset->attSet('AttrName' => 'AttrValue');           # Set attribute value(s) for a dataset

=head1 MEMBER DATA

=over 1

=item ID

ID number given to the file by the HDF5 library

=item filename

Name of the file.

=item accessMode

Access Mode?? ( read /write etc????)


=item attrIndex

Quick lookup index of group names to attribute values. Autogenerated as-needed by the 
L<allAttrValues>, L<allAttrNames>, L<getGroupByAttr> methods. Any attribute writes or group
creations will delete this data member, because it will no longer be valid.

The index is of this form:

  {
    groupName1  =>  { attr1 => value, attr2 => value }.
    groupName2  =>  { attr1 => value, attr3 => value }.
   .
   .
   .
  }

For the purposes of indexing groups by their attributes, the attributes are 
applied hierarchically. i.e. any attributes of the higher level groups are assumed to be 
apply for the lower level groups.

=item groupIndex

Quick lookup index of attribute names/values group names. This index is used by the 
L<getGroupByAttr> method to quickly find any group(s) that have attribute that match a 
desired set. 

The index is of this form:

  { "attr1\0attt2" => { "value1\0value2' => [ group1, group2, ...],
                        "value3\0value3' => [ groupA ],
			.
			.
			.
		      },
		      
     "att1"        => { "value1' =>         [ group1, group2, ...],
                        "value3' =>         [ groupA ]
			.
			.
			.
		      },
       .
       .
       .
  }	      
   
   
The first level of the index maps the attribute name combinations that have
indexes built to their index. The second level maps the corresponding attribute values
with the group(s) where these attributes take on these values.

    groupName1  =>  { attr1 => value, attr2 => value }.
    groupName2  =>  { attr1 => value, attr3 => value }.
   .
   .
   .
  }

For the purposes of indexing groups by their attributes, the attributes are 
applied hierarchically. i.e. any attributes of the higher level groups are assumed to be 
apply for the lower level groups.

=back

=head1 METHODS

=head2 new

=for ref

PDL::IO::HDF5 constructor - creates PDL::IO::HDF5 object for reading or 
writing data.

B<Usage:>

=for usage

   $a = new PDL::IO::HDF5( $filename );
   
Arguments:  
1) The name of the file.

If this file exists and you want to write to it, 
prepend the name with the '>' character:  ">name.nc"

Returns undef on failure.

B<Example:>

=for example

	$hdf5obj = new PDL::IO::HDF5( "file.hdf" );

=cut



sub new {
  my $type = shift;
  my $file = shift;

  my $self = {};
  my $rc;
  my $write;

  if (substr($file, 0, 1) eq '>') { # open for writing
    $file = substr ($file, 1);      # chop off >
    $write = 1;
  }
  
  my $fileID; # HDF file id
    
  if (-e $file) {    # Existing File

    if ($write) {

      $fileID = H5Fopen($file, H5F_ACC_RDWR(), H5P_DEFAULT());        
      if( $fileID < 0){  
	carp("Can't Open Existing HDF file '$file' for writing\n");
        return undef;
      }
 
      $self->{accessMode} = 'w';

    } else { # Open read-only
                      
      $fileID = H5Fopen($file, H5F_ACC_RDONLY(), H5P_DEFAULT());        
      
      if( $fileID < 0){  
	carp("Can't Open Existing HDF file '$file' for reading\n");
        return undef;
      }
      
      $self->{accessMode} = 'r';


    }
  }
  else{  # File doesn't exist, create it:
   
      $fileID = H5Fcreate($file, H5F_ACC_TRUNC(), H5P_DEFAULT(), H5P_DEFAULT());        
      if( $fileID < 0){  
	carp("Can't Open New HDF file '$file' for writing\n");
        return undef;
      }
      
            
      $self->{accessMode} = 'w';
  }
  
  # Record file name, ID
  $self->{filename} = $file;
  $self->{ID} = $fileID;

  $self->{attrIndex}  = undef; # Initialize attrIndex
  $self->{groupIndex} = undef; # Initialize groupIndex

  bless $self, $type;
}



=head2 filename

=for ref

Get the filename for the HDF5 file


B<Usage:>

=for usage

   my $filename = $HDFfile->filename;
   
   
=cut

sub filename {
	my $self = shift;

	return $self->{filename};

}

=head2 group

=for ref

Open or create a group in the root "/" group (i.e. top level)
of the HDF5 file.


B<Usage:>

=for usage

   $HDFfile->group("groupName");
   
   
Returns undef on failure, 1 on success.



=cut

sub group {
	my $self = shift;

	my $name = $_[0]; # get the group name
	
	my $parentID = $self->{ID};
	my $parentName = '';
	
	my $group =  new PDL::IO::HDF5::Group( 'name'=> $name, parent => $self,
					 fileObj => $self  );

}


=head2 groups

=for ref

Get a list of groups in the root "/" group (i.e. top level)
of the HDF5 file.


B<Usage:>

=for usage

   @groups = $HDFfile->groups;
   

=cut

sub groups {
	my $self = shift;
	
	my @groups = $self->group("/")->groups;
		
	return @groups;
	

}


=head2 unlink

=for ref

Unlink an object from the root "/" group (i.e. top level)
of the HDF5 file.


B<Usage:>

=for usage

   $HDFfile->unlink($name);
   

=cut

sub unlink {
	my $self    = shift;
	my $name    = $_[0];

	$self->group("/")->unlink($name);
	return 1;
}


=head2 dataset

=for ref

Open or create a dataset in the root "/" group (i.e. top level)
of the HDF5 file.


B<Usage:>

=for usage

   $HDFfile->dataset("groupName");
   
   
Returns undef on failure, 1 on success.

Note: This is a convienence method that is equivalent to:

  $HDFfile->group("/")->dataset("groupName");

=cut

sub dataset {
	my $self = shift;

	my $name = $_[0]; # get the dataset name
	
	return $self->group("/")->dataset($name);
}


=head2 datasets

=for ref

Get a list of all dataset names in the root "/" group.


B<Usage:>

=for usage

   @datasets = $HDF5file->datasets;

Note: This is a convienence method that is equivalent to:

  $HDFfile->group("/")->datasets;

=cut

sub datasets{
	my $self = shift;

	my $name = $_[0]; # get the dataset name
	
	return $self->group("/")->datasets;
}



=head2 attrSet

=for ref

Set the value of an attribute(s) in the root '/' group of the file.

Currently attribute types supported are null-terminated strings and
any PDL type.

B<Usage:>

=for usage

   $HDFfile->attrSet( 'attr1' => 'attr1Value',
   		    'attr2' => 'attr2 value', 
                    'attr3' => $pdl,
		    .
		    .
		    .
		   );

Returns undef on failure, 1 on success.

Note: This is a convienence method that is equivalent to:

  $HDFfile->group("/")->attrSet( 'attr1' => 'attr1Value',
				 'attr2' => 'attr2 value', 
                                 'attr3' => $pdl,
				 .
				 .
				 .
				);


=cut

sub attrSet {
	my $self = shift;

	my %attrs = @_; # get atribute hash
	
	
	return $self->group("/")->attrSet(%attrs);
}



=head2 attrGet

=for ref

Get the value of an attribute(s) in the root '/' group of the file.

Currently the attribute types supported are null-terminated strings
and PDLs.

B<Usage:>

=for usage

   @attrValues = $HDFfile->attrGet( 'attr1', 'attr2' );


=cut

sub attrGet {
	my $self = shift;

	my @attrs = @_; # get atribute hash
	
	
	return $self->group("/")->attrGet(@attrs);
}



=head2 attrDel

=for ref

Delete attribute(s) in the root "/" group of the file.

B<Usage:>

=for usage

 $HDFfile->attrDel( 'attr1', 
      		    'attr2',
		    .
		    .
		    .
		   );

Returns undef on failure, 1 on success.

Note: This is a convienence method that is equivalent to:

  $HDFfile->group("/")->attrDel( 'attr1', 
				 'attr2',
				 .
				 .
				 .
				);


=cut

sub attrDel {
	my $self = shift;

	my @attrs = @_; # get atribute names
	
	return $self->group("/")->attrDel(@attrs);

}


=head2 attrs

=for ref

Get a list of all attribute names in the root "/" group of the file.


B<Usage:>

=for usage

   @attrs = $HDFfile->attrs;

Note: This is a convienence method that is equivalent to:

  $HDFfile->group("/")->attrs

=cut

sub attrs {
	my $self = shift;

	return $self->group("/")->attrs;

 }

=head2 reference

=for ref

Create a reference to part of a dataset in the root "/" group of the file.


B<Usage:>

=for usage

   $HDFfile->reference;

Note: This is a convienence method that is equivalent to:

  $HDFfile->group("/")->reference($referenceName,$datasetObj,@regionStart,@regionCount);

Create a reference named $referenceName within the root group "/" to a subroutine of
the dataset $datasetObj. The region to be referenced is defined by the @regionStart
and @regionCount arrays.

=cut

sub reference {
	my $self = shift;
	my $datasetObj    = shift;
	my $referenceName = shift;
	my @regionStart   = shift;
	my @regionCount   = shift;

	return $self->group("/")->reference($datasetObj,$referenceName,\@regionStart,\@regionCount);

 }

=head2 _buildAttrIndex

=for ref

Internal Method to build the attribute index hash
for the object


B<Usage:>

=for usage

   $hdf5obj->_buildAttrIndex;


 Output:
    Updated attrIndex data member


=cut

sub _buildAttrIndex{

	my ($self) = @_;
	# Take care of any attributes in the current group
	my @attrs = $self->attrs;
	
	my @attrValues = $self->attrGet(@attrs);
	
	my $index = $self->{attrIndex} = {};
	
	my %indexElement; # element of the index for this group
	
	@indexElement{@attrs} = @attrValues;
	
	$index->{'/'} = \%indexElement;
	
	my $topLevelAttrs = { %indexElement }; 
	 
	# Now Do any subgroups: 
	my @subGroups = $self->groups;
	my $subGroup;
	
	foreach $subGroup(@subGroups){
		$self->group($subGroup)->_buildAttrIndex($index,$topLevelAttrs);
	}
	
}


=head2 clearAttrIndex

=for ref

Method to clear the attribute index hash
for the object. This is a mostly internal method that is
called whenever some part of the HDF5 file has changed and the
L<attrIndex> index is no longer valid.


B<Usage:>

=for usage

   $hdf5obj->clearAttrIndex;

=cut

sub clearAttrIndex{

	my $self = shift;
	$self->{attrIndex} = undef;
	
}

=head2 _buildGroupIndex

=for ref

Internal Method to build the groupIndex hash
for the object


B<Usage:>

=for usage

   $hdf5obj->_buildGroupIndex(@attrs);
   
   where:
     @attrs   List of attribute names to build
              a group index on.
	      
 Output:
    Updated groupIndex data member


=cut

sub _buildGroupIndex{

	my ($self,@attrs) = @_;


	@attrs = sort @attrs; # Sort the attributes so the order won't matter
	
	# Generate attrIndex if not there yet
	defined( $self->{attrIndex}) || $self->_buildAttrIndex;

	my $attrIndex = $self->{attrIndex};

	my $groupIndexElement = {};  # Element of the group index that we will build
	my $group;
	my $attrIndexElement;        # Attr index for the current group
	my @attrValues;              # attr values corresponding to @attrs for the current group
	my $key;                     # group index key
	
	# Go Thru All Groups
	foreach $group(sort keys %$attrIndex){
	
		$attrIndexElement = $attrIndex->{$group};
		
		@attrValues = map defined($_) ? $_ : '_undef_',   @$attrIndexElement{@attrs}; # Groups with undefined attr will get a '_undef_' string for the value
		

		# Use multi-dimensional array emulation for the hash
		#  key here because it should be quicker.
		if( defined( $groupIndexElement->{$key = join($;,@attrValues)}) ) { # if already defined, add to the list
			push @{$groupIndexElement->{$key}}, $group;
		}
		else{  # not already defined create new element
			$groupIndexElement->{$key} = [ $group ];
		}	
	}
	
	# initialize group index if it doesn't exist.
	unless( defined $self->{groupIndex} ){ $self->{groupIndex} = {} }; 

	# Use multi-dimensional array emulation for the hash
	#  key here because it should be quicker.	
	$self->{groupIndex}{join($;,@attrs)} =  $groupIndexElement;

}


=head2 clearGroupIndex

=for ref

Method to clear the group index hash
for the object. This is a mostly internal method that is
called whenever some part of the HDF5 file has changed and the
L<groupIndex> index is no longer valid.


B<Usage:>

=for usage

   $hdf5obj->clearGroupIndex;

=cut

sub clearGroupIndex{

	my $self = shift;
	$self->{groupIndex} = undef;
	
}

=head2 getGroupsByAttr

=for ref

Get the group names which attributes match a given set of values. This method
enables database-like queries to be made. I.e. you can get answers to 
questions like 'Which groups have attr1 = value1, and attr3 = value2?'.

B<Usage:>

=for usage

 @groupNames = $hdf5Obj->getGroupsByAttr( 'attr1' => 'value1', 
 					  'attr2' => 'value2' );
 

=cut

sub getGroupsByAttr{

	my $self = shift;
	
	my %attrHash = @_;
	
	my @keys = sort keys %attrHash;
	
	# Use multi-dimensional array emulation for the hash
	#  key here because it should be quicker.	
	my $compositeKey = join($;, @keys);
	
	
	# Generate groupIndex if not there yet
	defined( $self->{groupIndex}{$compositeKey} ) || $self->_buildGroupIndex(@keys);

	$groupIndex = $self->{groupIndex}{$compositeKey};

	my @values = @attrHash{@keys};
	
	my $compositeValues = join($;, @values);
		
	if( defined($groupIndex->{$compositeValues} )){
		return @{$groupIndex->{$compositeValues}};
	}
	else{
		return ();
	}
	
}
		

=head2 allAttrValues

=for ref

Returns information about group attributes defined in the HDF5 datafile.

B<Usage:>

=for usage

 # Single Attr Usage. Returns an array of all 
 #   values of attribute 'attrName' in the file.
 $hdf5obj->allAttrValues('attrName');
 
 # Multiple Attr Usage. Returns an 2D array of all 
 #   values of attributes 'attr1', 'attr2' in the file.
 #   Higher-Level
 $hdf5obj->allAttrValues('attr1', 'attr2');

=cut

sub allAttrValues{

	my $self = shift;
	
	my @attrs = @_;
	
	# Generate attrIndex if not there yet
	defined( $self->{attrIndex}) || $self->_buildAttrIndex;
	
	my $attrIndex = $self->{attrIndex};

	if( @attrs == 1) { # Single Argument Processing
		my $attr = $attrs[0];


		my $group;

		my @values;
		my $grpAttrHash;  # attr hash for a particular group

		# Go thru each group and look for instances of $attr
		foreach $group( keys %$attrIndex){

			$grpAttrHash = $attrIndex->{$group};

			if( defined($grpAttrHash->{$attr})){
				push @values, $grpAttrHash->{$attr};
			}
		}

		return @values;
	}
	else{ # Multiple argument processing
	
		my $group;

		my @values;
		my $grpAttrHash;  # attr hash for a particular group
		
		my $attr; # individual attr name
		my $allAttrSeen; # flag = 0 if we have not seen all of the 
				 # desired attributes in the current group
				 
		my $value;       # Current value of the @values array that we
		                 #  will return

		# Go thru each group and look for instances of $attr
		foreach $group( keys %$attrIndex){

			$grpAttrHash = $attrIndex->{$group};

			# Go thru each attribute
			$allAttrSeen = 1;  # assume we will se all atributes, set to zero if we don't
			$value = [];
			foreach $attr(@attrs){
				
				if( defined($grpAttrHash->{$attr})){
					push @$value, $grpAttrHash->{$attr};
				}
				else{
					$allAttrSeen = 0;
				}
		
			}
			push @values, $value if $allAttrSeen; #add to values array if we got anything
		}

		return @values;
	}

		
}

=head2 allAttrNames

=for ref

Returns a sorted list of all the group attribute names that are defined
in the file.

B<Usage:>

=for usage

 my @attrNames = $hdf5obj->allAttrNames;

=cut

sub allAttrNames{

	my $self = shift;
	

	# Generate attrIndex if not there yet
	defined( $self->{attrIndex}) || $self->_buildAttrIndex;
	
	my $attrIndex = $self->{attrIndex};



	my $group;

	my %names;
	my $grpAttrHash;  # attr hash for a particular group

	my @currentNames;
	# Go thru each group and look for instances of $attr
	foreach $group( keys %$attrIndex){

		$grpAttrHash = $attrIndex->{$group};
		@currentNames = keys %$grpAttrHash;
		@names{@currentNames} = @currentNames;
		
		
	}

	return sort keys %names;

		
}

=head2 IDget

=for ref

Returns the HDF5 library ID for this object

B<Usage:>

=for usage

 my $ID = $hdf5obj->IDget;

=cut

sub IDget{

	my $self = shift;
	
	return $self->{ID};
		
}

=head2 nameGet

=for ref

Returns the HDF5 Group Name for this object. (Always '/', i.e. the
root group for this top-level object)

B<Usage:>

=for usage

 my $name = $hdf5obj->nameGet;

=cut

sub nameGet{

	my $self = shift;
	
	return '/';
		
}


=head2 DESTROY

=for ref

PDL::IO::HDF5 Desctructor - Closes the HDF5 file

B<Usage:>

=for usage

   No Usage. Automatically called

=cut


sub DESTROY {
  my $self = shift;

  if( H5Fclose($self->{ID}) < 0){
	warn("Error closing HDF5 file ".$self->{filename}."\n");
  }

}

# 
# Utility function (Not a Method!!!)
#  to pack a perl list into a binary structure
#  to be interpereted as a C array of long longs. This code is build
#  during the make process to do the Right Thing for big and little
#  endian machines
sub packList{

	my @list = @_;
	
	if(ref($_[0])){
		croak(__PACKAGE__."::packList is not a method!\n");
	}
	
EOPM

# Packing of long int array structure differs depending on 
# if the current machine is little or big endian.   This logic
#  probably won't work for 'weird' byte order machine, but for most
#  others (intel, vax, sun, etc) it should be OK.
#
if( $Config{'byteorder'} =~ /^1/){ # little endian
   pp_addpm("\t".'@list = map (( $_,0 ), @list); # Intersperse zeros to make 64 bit hsize_t');

}
else{ # Big Endian Machine
   pp_addpm("\t".'@list = map (( 0,$_ ), @list); # Intersperse zeros to make 64 bit hsize_t');
}

pp_addpm(<<'EOPM');
	my $list = pack ("L*", @list);
	
	return $list;
}
EOPM

pp_addpm(<<'EOPM');

# 
# Utility function (Not a Method!!!)
#  to unpack a perl list from a binary structure
#  that is a C array of long longs. This code is build
#  during the make process to do the Right Thing for big and little
#  endian machines
sub unpackList{
	

	if(ref($_[0])){
		croak(__PACKAGE__."::unpackList is not a method!\n");
	}

	my ($binaryStruct) = (@_); # input binary structure
	my $listLength = length($binaryStruct) / 8;  # list returned will be the
						    # number of bytes in the input struct/8, since
						    # the output numbers are 64bit.
	
EOPM

# UnPacking of long int array structure differs depending on 
# if the current machine is little or big endian.   This logic
#  probably won't work for 'weird' byte order machine, but for most
#  others (intel, vax, sun, etc) it should be OK.
#
if( $Config{'byteorder'} =~ /^1/){ # little endian
   pp_addpm("\t".'my $unpackString = "Lxxxx" x $listLength; # 4 xxxx used to toss upper 32 bits');
}
else{ # Big Endian Machine
   pp_addpm("\t".'my $unpackString = "xxxxL" x $listLength; # 4 xxxx used to toss upper 32 bits');
}

pp_addpm(<<'EOPM');
	my @list = unpack( $unpackString, $binaryStruct );
	
	return @list;
}

=head1 AUTHORS

John Cerney, j-cerney1@raytheon.com

Andrew Benson, abenson@obs.carnegiescience.edu

=cut

EOPM




# Read in a modified hdf.h file.  Define
# a low-level perl interface to hdf from these definitions.
sub create_low_level {

# This file must be modified to only include 
# hdf5 3 function definitions.
# Also, all C function declarations must be on one line.
  my $defn = shift;
  my @lines = split (/\n/, $defn);

  foreach (@lines) {

    next if (/^\#/);  # Skip commented out lines
    next if (/^\s*$/); # Skip blank lines

    my ($return_type, $func_name, $parms) = /^(\w+\**)\s+(\w+)\s*\((.*?)\)\;/;
    my @parms = split (/,/, $parms);

    my @vars  = ();
    my @types = ();
    my %output = ();
    foreach $parm (@parms) {

      my ($varname) = ($parm =~ /(\w+)$/);
      $parm =~ s/$varname$//; # parm now contains the full C type
      $output{$varname} = 1 if (($parm =~ /\*/) && ($parm !~ /const/));
      $parm =~ s/const //;  # get rid of 'const' in C type
      $parm =~ s/^\s+//;
      $parm =~ s/\s+$//;    # pare off the variable type from 'parm'
      
      push (@vars, $varname);
      push (@types, $parm);

    }

    my $xsout = '';
    $xsout .= "$return_type\n";
    $xsout .= "$func_name (" . join (", ", @vars) . ")\n";
    for (my $i=0;$i<@vars;$i++) {
      $xsout .= "\t$types[$i]\t$vars[$i]\n";
    }
    
    $xsout .= "CODE:\n";
    $xsout .= "\tRETVAL = $func_name (";
    for (my $i=0;$i<@vars;$i++) {
      if ($types[$i] =~ /PDL/) {
	($type = $types[$i]) =~ s/PDL//; # Get rid of PDL type when writine xs CODE section
	$xsout .= "($type)$vars[$i]"."->data,";
      } else {
	$xsout .= "$vars[$i],";
      }
    }
    chop ($xsout) if( $xsout =~ /\,$/s);  # remove last comma, if present
    $xsout .= ");\n";
    $xsout .= "OUTPUT:\n";
    $xsout .= "\tRETVAL\n";
    foreach $var (sort keys %output) {
      $xsout .= "\t$var\n";
    }
    $xsout .= "\n\n";

    pp_addxs ('', $xsout);

  }

}


#-------------------------------------------------------------------------
# Create low level interface from edited hdr5 header file.
#-------------------------------------------------------------------------

create_low_level (<<'EODEF');
# HDF5 Functions we create an interface to using the perl XS code
#
# Note: H5Gget_objinfo arg statbuf has been changed from a H5G_stat_t type to 
# a const void type to avoid compilation errors. This function only used
# to determine if a group exists, so the statbuf variable is not used as 
# I/O variable as stated in the HDF5 docs.

hid_t H5Fcreate (const char *name, unsigned flags, hid_t create_id, hid_t access_id); 
hid_t H5Fopen (const char *name, unsigned flags, hid_t access_id); 
herr_t H5Fclose (hid_t file_id); 
#
# Dataspace functions
hid_t H5Screate_simple (int rank, const hsize_t * dims,  const hsize_t * maxdims);
herr_t H5Sclose(hid_t space_id); 
int H5Sget_simple_extent_ndims(hid_t space_id);
int H5Sget_simple_extent_dims(hid_t space_id, hsize_t *dims, hsize_t *maxdims);
herr_t H5Sselect_hyperslab(hid_t space_id, int op, const hsize_t *start, const hsize_t *stride, const hsize_t *count, const hsize_t *block);
herr_t H5Sget_select_bounds(hid_t space_id, hsize_t *start, hsize_t *end);
hid_t H5Pcreate(hid_t cls_id);
herr_t H5Pset_chunk(hid_t plist, int ndims, const hsize_t *dim);
herr_t H5Pclose(hid_t plist);
#
#
# Dataset Functions
hid_t H5Dcreate (hid_t loc_id, const char *name, hid_t type_id,  hid_t space_id, hid_t create_plist_id); 
hid_t H5Dopen (hid_t loc_id, const char *name);
herr_t H5Dwrite (hid_t dataset_id, hid_t mem_type_id, hid_t mem_space_id, hid_t file_space_id, hid_t xfer_plist_id, const char * buf);
herr_t H5Dextend(hid_t dataset_id, const hsize_t *size);
# H5Dread buf type changed from void * to I8 * so that is can be catergorized separately in the
#  typemap as a T_PVI traslation
herr_t H5Dread (hid_t dataset_id, hid_t mem_type_id, hid_t mem_space_id, hid_t file_space_id, hid_t xfer_plist_id, I8 * buf);
hid_t H5Dclose (hid_t dataset_id);
hid_t H5Dget_type(hid_t dataset_id);
hid_t H5Dget_space(hid_t dataset_id);
# H5Dvlen_reclaim buf type changed from void * to I8 * so that is can be catergorized separately in the
#  typemap as a T_PVI traslation
herr_t H5Dvlen_reclaim(hid_t type_id, hid_t space_id, hid_t plist_id, I8 *buf);

hid_t H5Gcreate(hid_t loc_id, const char *name, size_t size_hint);
hid_t H5Gopen(hid_t loc_id, const char *name);
herr_t H5Gclose(hid_t group_id);
herr_t H5Gget_objinfo(hid_t loc_id, const char *name, hbool_t follow_link, const void *statbuf);
herr_t H5errorOn();
herr_t H5errorOff();
#
# Attribute Functions
hid_t H5Aopen_name(hid_t loc_id, const char *name);
hid_t H5Acreate(hid_t loc_id, const char *name, hid_t type_id, hid_t space_id, hid_t create_plist);
# Note: attrib write only supports char buffer right now
herr_t H5Awrite (hid_t attr_id, hid_t mem_type_id, I8 * buf);
herr_t H5Adelete(hid_t loc_id, const char * name);
herr_t H5Aclose(hid_t attr_id);
int H5Aget_num_attrs(hid_t loc_id);
hid_t H5Aopen_idx(hid_t loc_id, unsigned int idx);
ssize_t H5Aget_name(hid_t attr_id, size_t buf_size, char *buf);
htri_t H5Sis_simple(hid_t space_id);
hid_t H5Aget_space(hid_t attr_id);
hid_t H5Aget_type(hid_t attr_id);
# The Attrib read only supports char buffer right now
herr_t H5Aread(hid_t attr_id, hid_t mem_type_id, I8 *buf);

# Type Functions:
herr_t H5Tset_size(hid_t type_id, size_t size);
herr_t H5Tclose(hid_t type_id);
hid_t H5Tcopy(hid_t type_id);
size_t H5Tget_size(hid_t type_id);
#hid_t H5Tget_super(hid_t type);
htri_t H5Tequal(hid_t type_id1, hid_t type_id2); 
H5T_class_t H5Tget_class(hid_t type_id);
htri_t H5Tis_variable_str(hid_t type_id);

# Reference Functions:
H5G_obj_t H5Rget_obj_type(hid_t id, H5R_type_t ref_type, I8 *ref);
hid_t H5Rget_region(hid_t dataset, H5R_type_t ref_type, I8 *ref);
hid_t H5Rdereference(hid_t dataset, H5R_type_t ref_type, I8 *ref);
herr_t H5Rcreate(I8 *ref, hid_t loc_id, const char *name, H5R_type_t ref_type, hid_t space_id);

# Link functions:
herr_t H5Ldelete(hid_t loc_id, const char *name, hid_t lapl_id);


EODEF


# Add Optional HDF Constants to export list.

pp_add_exported('', <<'EOPM');
	H5F_ACC_DEBUG
	H5F_ACC_EXCL
	H5F_ACC_RDONLY
	H5F_ACC_RDWR
	H5F_ACC_TRUNC
	H5P_DEFAULT
	H5P_DATASET_CREATE
	H5S_ALL
	H5S_UNLIMITED
	H5T_ALPHA_B16
	H5T_ALPHA_B32
	H5T_ALPHA_B64
	H5T_ALPHA_B8
	H5T_ALPHA_F32
	H5T_ALPHA_F64
	H5T_ALPHA_I16
	H5T_ALPHA_I32
	H5T_ALPHA_I64
	H5T_ALPHA_I8
	H5T_ALPHA_U16
	H5T_ALPHA_U32
	H5T_ALPHA_U64
	H5T_ALPHA_U8
	H5T_C_S1
	H5T_FORTRAN_S1
	H5T_IEEE_F32BE
	H5T_IEEE_F32LE
	H5T_IEEE_F64BE
	H5T_IEEE_F64LE
	H5T_INTEL_B16
	H5T_INTEL_B32
	H5T_INTEL_B64
	H5T_INTEL_B8
	H5T_INTEL_F32
	H5T_INTEL_F64
	H5T_INTEL_I16
	H5T_INTEL_I32
	H5T_INTEL_I64
	H5T_INTEL_I8
	H5T_INTEL_U16
	H5T_INTEL_U32
	H5T_INTEL_U64
	H5T_INTEL_U8
	H5T_MIPS_B16
	H5T_MIPS_B32
	H5T_MIPS_B64
	H5T_MIPS_B8
	H5T_MIPS_F32
	H5T_MIPS_F64
	H5T_MIPS_I16
	H5T_MIPS_I32
	H5T_MIPS_I64
	H5T_MIPS_I8
	H5T_MIPS_U16
	H5T_MIPS_U32
	H5T_MIPS_U64
	H5T_MIPS_U8
	H5T_NATIVE_B16
	H5T_NATIVE_B32
	H5T_NATIVE_B64
	H5T_NATIVE_B8
	H5T_NATIVE_CHAR
	H5T_NATIVE_DOUBLE
	H5T_NATIVE_FLOAT
	H5T_NATIVE_HBOOL
	H5T_NATIVE_HERR
	H5T_NATIVE_HSIZE
	H5T_NATIVE_HSSIZE
	H5T_NATIVE_INT
	H5T_NATIVE_INT16
	H5T_NATIVE_INT32
	H5T_NATIVE_INT64
	H5T_NATIVE_INT8
	H5T_NATIVE_INT_FAST16
	H5T_NATIVE_INT_FAST32
	H5T_NATIVE_INT_FAST64
	H5T_NATIVE_INT_FAST8
	H5T_NATIVE_INT_LEAST16
	H5T_NATIVE_INT_LEAST32
	H5T_NATIVE_INT_LEAST64
	H5T_NATIVE_INT_LEAST8
	H5T_NATIVE_LDOUBLE
	H5T_NATIVE_LLONG
	H5T_NATIVE_LONG
	H5T_NATIVE_OPAQUE
	H5T_NATIVE_SCHAR
	H5T_NATIVE_SHORT
	H5T_NATIVE_UCHAR
	H5T_NATIVE_UINT
	H5T_NATIVE_UINT16
	H5T_NATIVE_UINT32
	H5T_NATIVE_UINT64
	H5T_NATIVE_UINT8
	H5T_NATIVE_UINT_FAST16
	H5T_NATIVE_UINT_FAST32
	H5T_NATIVE_UINT_FAST64
	H5T_NATIVE_UINT_FAST8
	H5T_NATIVE_UINT_LEAST16
	H5T_NATIVE_UINT_LEAST32
	H5T_NATIVE_UINT_LEAST64
	H5T_NATIVE_UINT_LEAST8
	H5T_NATIVE_ULLONG
	H5T_NATIVE_ULONG
	H5T_NATIVE_USHORT
	H5T_STD_B16BE
	H5T_STD_B16LE
	H5T_STD_B32BE
	H5T_STD_B32LE
	H5T_STD_B64BE
	H5T_STD_B64LE
	H5T_STD_B8BE
	H5T_STD_B8LE
	H5T_STD_I16BE
	H5T_STD_I16LE
	H5T_STD_I32BE
	H5T_STD_I32LE
	H5T_STD_I64BE
	H5T_STD_I64LE
	H5T_STD_I8BE
	H5T_STD_I8LE
	H5T_STD_REF_DSETREG
	H5T_STD_REF_OBJ
	H5T_STD_U16BE
	H5T_STD_U16LE
	H5T_STD_U32BE
	H5T_STD_U32LE
	H5T_STD_U64BE
	H5T_STD_U64LE
	H5T_STD_U8BE
	H5T_STD_U8LE
	H5T_STRING
	H5T_UNIX_D32BE
	H5T_UNIX_D32LE
	H5T_UNIX_D64BE
	H5T_UNIX_D64LE
	H5T_REFERENCE
	H5R_DATASET_REGION
EOPM

###############################################################
# XS Code that implements self-contained turn-on/off for
#  the h5 library error reporting. We can turn error reporting
#  selectively on and off to keep the library from complaining
#  when we are doing things like checking to see if a particular
#  group name exists.

pp_addhdr(<<'EOXS');

/* ############################################################### 
#
#  H5 Library error reporting turn-on/off functions
#
#
*/ 
herr_t
H5errorOff()
{
	return H5Eset_auto(NULL, NULL );
}

herr_t
H5errorOn()
{
	return H5Eset_auto((herr_t(*)(void*))H5Eprint, stderr );
}

/* ############################################################### 
#
#  Operator Interation Functions (Supplied to and called by 'H5Giterate') 
#  used to get the number of datasets in a group, 
#   and the names of the dataset in the group.

#
#
*/
/*
 * Operator function to get number of datasets
 */
herr_t incIfDset(hid_t loc_id, const char *name, void *opdata)
{
    H5G_stat_t statbuf;
    unsigned int * dsetCount;

    dsetCount = (unsigned int *) opdata; 
    /*
     * Get type of the object and increment *dsetCount
     *  if it is a dataset
     * The name of the object is passed to this function by 
     * the Library. Some magic :-)
     */
    H5Gget_objinfo(loc_id, name, FALSE, &statbuf);
    if( statbuf.type == H5G_DATASET){
          (*dsetCount)++;
    }       
    return 0;
 }

/*
 * Operator function to fill up char array of dataset names
 *
 *  opdata is a pointer to an Array of strings (i.e. 2D char array)
 */
herr_t getName_if_Dset(hid_t loc_id, const char *name, void *opdata)
{
    H5G_stat_t statbuf;
    char ** datasetName;
  
    char *** tempptr;
    tempptr = (char ***) opdata;

    datasetName =  *tempptr; 
    /*
     * Get type of the object.
     *  If it is a dataset, get allocate space for it at *datasetName
     *  Increment *tempptr so we will be looking at the next name space when
     *  this function is called again.
     *
     *  Note: The calling function must take care of freeing memory allocateed
     *        
     */
    H5Gget_objinfo(loc_id, name, FALSE, &statbuf);
    if( statbuf.type == H5G_DATASET){
          
         *datasetName = (char *) malloc( (strlen(name)+1) * sizeof(char));
         if( *datasetName == NULL){
            printf("PDL::IO::HDF5; Out of Memory in getName_if_Dset\n");
            exit(1);
         }

         strcpy(*datasetName,name);
         (*tempptr)++;
     }
    return 0;
 } 
 

/*
 * Operator function to get number of groups in a particular location
 */
herr_t incIfGroup(hid_t loc_id, const char *name, void *opdata)
{
    H5G_stat_t statbuf;
    unsigned int * groupCount;

    groupCount = (unsigned int *) opdata; 
    /*
     * Get type of the object and increment *groupCount
     *  if it is a group
     * The name of the object is passed to this function by 
     * the Library. Some magic :-)
     */
    H5Gget_objinfo(loc_id, name, FALSE, &statbuf);
    if( statbuf.type == H5G_GROUP){
          (*groupCount)++;
    }       
    return 0;
 }

/*
 * Operator function to fill up char array of group names
 *
 *  opdata is a pointer to an Array of strings (i.e. 2D char array)
 */
herr_t getName_if_Group(hid_t loc_id, const char *name, void *opdata)
{
    H5G_stat_t statbuf;
    char ** groupName;
  
    char *** tempptr;
    tempptr = (char ***) opdata;

    groupName =  *tempptr; 
    /*
     * Get type of the object.
     *  If it is a group, get allocate space for it at *groupName
     *  Increment *tempptr so we will be looking at the next name space when
     *  this function is called again.
     *
     *  Note: The calling function must take care of freeing memory allocateed
     *        
     */
    H5Gget_objinfo(loc_id, name, FALSE, &statbuf);
    if( statbuf.type == H5G_GROUP){
          
         *groupName = (char *) malloc( (strlen(name)+1) * sizeof(char));
         if( *groupName == NULL){
            printf("PDL::IO::HDF5; Out of Memory in getName_if_Group\n");
            exit(1);
         }

         strcpy(*groupName,name);
         (*tempptr)++;
     }
    return 0;
 } 
EOXS
###############################################################
# XS Code that implements the HDF constants 
#  Using the AUTOLOAD routine, any calls to hdf5 constants, like 
#  H5F_ACC_RDONLY will call the 'constant' routine here and return
#   the value of the #defined'ed H5F_ACC_RDONLY

pp_addhdr(<<'EOXS');

/* ############################################################### 
#
#  Functions to handle interfacing HDF5 constants with perl
#
#   This originally generated using h2xs and manually editing
#
*/ 
static int
not_here(s)
char *s;
{
    croak("%s not implemented on this architecture", s);
    return -1;
}

hid_t 
constant(name, arg)
char *name;
int arg;
{
    errno = 0;
    switch (*name) {
    case 'A':
	break;
    case 'B':
	break;
    case 'C':
	break;
    case 'D':
	break;
    case 'E':
	break;
    case 'F':
	break;
    case 'G':
	break;
    case 'H':
	if (strEQ(name, "H5F_ACC_DEBUG"))
#ifdef H5F_ACC_DEBUG
	    return H5F_ACC_DEBUG;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5F_ACC_EXCL"))
#ifdef H5F_ACC_EXCL
	    return H5F_ACC_EXCL;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5F_ACC_RDONLY"))
#ifdef H5F_ACC_RDONLY
	    return H5F_ACC_RDONLY;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5F_ACC_RDWR"))
#ifdef H5F_ACC_RDWR
	    return H5F_ACC_RDWR;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5F_ACC_TRUNC"))
#ifdef H5F_ACC_TRUNC
	    return H5F_ACC_TRUNC;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5P_DEFAULT"))
#ifdef H5P_DEFAULT
	    return H5P_DEFAULT;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5P_DATASET_CREATE"))
#ifdef H5P_DATASET_CREATE
	    return H5P_DATASET_CREATE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5S_ALL"))
#ifdef H5S_ALL
	    return H5S_ALL;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5S_UNLIMITED"))
#ifdef H5S_UNLIMITED
	    return H5S_UNLIMITED;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_ALPHA_B16"))
#ifdef H5T_ALPHA_B16
	    return H5T_ALPHA_B16;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_ALPHA_B32"))
#ifdef H5T_ALPHA_B32
	    return H5T_ALPHA_B32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_ALPHA_B64"))
#ifdef H5T_ALPHA_B64
	    return H5T_ALPHA_B64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_ALPHA_B8"))
#ifdef H5T_ALPHA_B8
	    return H5T_ALPHA_B8;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_ALPHA_F32"))
#ifdef H5T_ALPHA_F32
	    return H5T_ALPHA_F32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_ALPHA_F64"))
#ifdef H5T_ALPHA_F64
	    return H5T_ALPHA_F64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_ALPHA_I16"))
#ifdef H5T_ALPHA_I16
	    return H5T_ALPHA_I16;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_ALPHA_I32"))
#ifdef H5T_ALPHA_I32
	    return H5T_ALPHA_I32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_ALPHA_I64"))
#ifdef H5T_ALPHA_I64
	    return H5T_ALPHA_I64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_ALPHA_I8"))
#ifdef H5T_ALPHA_I8
	    return H5T_ALPHA_I8;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_ALPHA_U16"))
#ifdef H5T_ALPHA_U16
	    return H5T_ALPHA_U16;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_ALPHA_U32"))
#ifdef H5T_ALPHA_U32
	    return H5T_ALPHA_U32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_ALPHA_U64"))
#ifdef H5T_ALPHA_U64
	    return H5T_ALPHA_U64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_ALPHA_U8"))
#ifdef H5T_ALPHA_U8
	    return H5T_ALPHA_U8;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_C_S1"))
#ifdef H5T_C_S1
	    return H5T_C_S1;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_FORTRAN_S1"))
#ifdef H5T_FORTRAN_S1
	    return H5T_FORTRAN_S1;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_IEEE_F32BE"))
#ifdef H5T_IEEE_F32BE
	    return H5T_IEEE_F32BE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_IEEE_F32LE"))
#ifdef H5T_IEEE_F32LE
	    return H5T_IEEE_F32LE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_IEEE_F64BE"))
#ifdef H5T_IEEE_F64BE
	    return H5T_IEEE_F64BE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_IEEE_F64LE"))
#ifdef H5T_IEEE_F64LE
	    return H5T_IEEE_F64LE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_INTEL_B16"))
#ifdef H5T_INTEL_B16
	    return H5T_INTEL_B16;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_INTEL_B32"))
#ifdef H5T_INTEL_B32
	    return H5T_INTEL_B32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_INTEL_B64"))
#ifdef H5T_INTEL_B64
	    return H5T_INTEL_B64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_INTEL_B8"))
#ifdef H5T_INTEL_B8
	    return H5T_INTEL_B8;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_INTEL_F32"))
#ifdef H5T_INTEL_F32
	    return H5T_INTEL_F32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_INTEL_F64"))
#ifdef H5T_INTEL_F64
	    return H5T_INTEL_F64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_INTEL_I16"))
#ifdef H5T_INTEL_I16
	    return H5T_INTEL_I16;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_INTEL_I32"))
#ifdef H5T_INTEL_I32
	    return H5T_INTEL_I32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_INTEL_I64"))
#ifdef H5T_INTEL_I64
	    return H5T_INTEL_I64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_INTEL_I8"))
#ifdef H5T_INTEL_I8
	    return H5T_INTEL_I8;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_INTEL_U16"))
#ifdef H5T_INTEL_U16
	    return H5T_INTEL_U16;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_INTEL_U32"))
#ifdef H5T_INTEL_U32
	    return H5T_INTEL_U32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_INTEL_U64"))
#ifdef H5T_INTEL_U64
	    return H5T_INTEL_U64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_INTEL_U8"))
#ifdef H5T_INTEL_U8
	    return H5T_INTEL_U8;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_MIPS_B16"))
#ifdef H5T_MIPS_B16
	    return H5T_MIPS_B16;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_MIPS_B32"))
#ifdef H5T_MIPS_B32
	    return H5T_MIPS_B32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_MIPS_B64"))
#ifdef H5T_MIPS_B64
	    return H5T_MIPS_B64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_MIPS_B8"))
#ifdef H5T_MIPS_B8
	    return H5T_MIPS_B8;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_MIPS_F32"))
#ifdef H5T_MIPS_F32
	    return H5T_MIPS_F32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_MIPS_F64"))
#ifdef H5T_MIPS_F64
	    return H5T_MIPS_F64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_MIPS_I16"))
#ifdef H5T_MIPS_I16
	    return H5T_MIPS_I16;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_MIPS_I32"))
#ifdef H5T_MIPS_I32
	    return H5T_MIPS_I32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_MIPS_I64"))
#ifdef H5T_MIPS_I64
	    return H5T_MIPS_I64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_MIPS_I8"))
#ifdef H5T_MIPS_I8
	    return H5T_MIPS_I8;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_MIPS_U16"))
#ifdef H5T_MIPS_U16
	    return H5T_MIPS_U16;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_MIPS_U32"))
#ifdef H5T_MIPS_U32
	    return H5T_MIPS_U32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_MIPS_U64"))
#ifdef H5T_MIPS_U64
	    return H5T_MIPS_U64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_MIPS_U8"))
#ifdef H5T_MIPS_U8
	    return H5T_MIPS_U8;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_B16"))
#ifdef H5T_NATIVE_B16
	    return H5T_NATIVE_B16;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_B32"))
#ifdef H5T_NATIVE_B32
	    return H5T_NATIVE_B32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_B64"))
#ifdef H5T_NATIVE_B64
	    return H5T_NATIVE_B64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_B8"))
#ifdef H5T_NATIVE_B8
	    return H5T_NATIVE_B8;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_CHAR"))
#ifdef H5T_NATIVE_CHAR
	    return H5T_NATIVE_CHAR;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_DOUBLE"))
#ifdef H5T_NATIVE_DOUBLE
	    return H5T_NATIVE_DOUBLE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_FLOAT"))
#ifdef H5T_NATIVE_FLOAT
	    return H5T_NATIVE_FLOAT;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_HBOOL"))
#ifdef H5T_NATIVE_HBOOL
	    return H5T_NATIVE_HBOOL;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_HERR"))
#ifdef H5T_NATIVE_HERR
	    return H5T_NATIVE_HERR;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_HSIZE"))
#ifdef H5T_NATIVE_HSIZE
	    return H5T_NATIVE_HSIZE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_HSSIZE"))
#ifdef H5T_NATIVE_HSSIZE
	    return H5T_NATIVE_HSSIZE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_INT"))
#ifdef H5T_NATIVE_INT
	    return H5T_NATIVE_INT;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_INT16"))
#ifdef H5T_NATIVE_INT16
	    return H5T_NATIVE_INT16;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_INT32"))
#ifdef H5T_NATIVE_INT32
	    return H5T_NATIVE_INT32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_INT64"))
#ifdef H5T_NATIVE_INT64
	    return H5T_NATIVE_INT64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_INT8"))
#ifdef H5T_NATIVE_INT8
	    return H5T_NATIVE_INT8;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_INT_FAST16"))
#ifdef H5T_NATIVE_INT_FAST16
	    return H5T_NATIVE_INT_FAST16;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_INT_FAST32"))
#ifdef H5T_NATIVE_INT_FAST32
	    return H5T_NATIVE_INT_FAST32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_INT_FAST64"))
#ifdef H5T_NATIVE_INT_FAST64
	    return H5T_NATIVE_INT_FAST64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_INT_FAST8"))
#ifdef H5T_NATIVE_INT_FAST8
	    return H5T_NATIVE_INT_FAST8;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_INT_LEAST16"))
#ifdef H5T_NATIVE_INT_LEAST16
	    return H5T_NATIVE_INT_LEAST16;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_INT_LEAST32"))
#ifdef H5T_NATIVE_INT_LEAST32
	    return H5T_NATIVE_INT_LEAST32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_INT_LEAST64"))
#ifdef H5T_NATIVE_INT_LEAST64
	    return H5T_NATIVE_INT_LEAST64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_INT_LEAST8"))
#ifdef H5T_NATIVE_INT_LEAST8
	    return H5T_NATIVE_INT_LEAST8;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_LDOUBLE"))
#ifdef H5T_NATIVE_LDOUBLE
	    return H5T_NATIVE_LDOUBLE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_LLONG"))
#ifdef H5T_NATIVE_LLONG
	    return H5T_NATIVE_LLONG;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_LONG"))
#ifdef H5T_NATIVE_LONG
	    return H5T_NATIVE_LONG;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_OPAQUE"))
#ifdef H5T_NATIVE_OPAQUE
	    return H5T_NATIVE_OPAQUE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_SCHAR"))
#ifdef H5T_NATIVE_SCHAR
	    return H5T_NATIVE_SCHAR;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_SHORT"))
#ifdef H5T_NATIVE_SHORT
	    return H5T_NATIVE_SHORT;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_UCHAR"))
#ifdef H5T_NATIVE_UCHAR
	    return H5T_NATIVE_UCHAR;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_UINT"))
#ifdef H5T_NATIVE_UINT
	    return H5T_NATIVE_UINT;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_UINT16"))
#ifdef H5T_NATIVE_UINT16
	    return H5T_NATIVE_UINT16;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_UINT32"))
#ifdef H5T_NATIVE_UINT32
	    return H5T_NATIVE_UINT32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_UINT64"))
#ifdef H5T_NATIVE_UINT64
	    return H5T_NATIVE_UINT64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_UINT8"))
#ifdef H5T_NATIVE_UINT8
	    return H5T_NATIVE_UINT8;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_UINT_FAST16"))
#ifdef H5T_NATIVE_UINT_FAST16
	    return H5T_NATIVE_UINT_FAST16;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_UINT_FAST32"))
#ifdef H5T_NATIVE_UINT_FAST32
	    return H5T_NATIVE_UINT_FAST32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_UINT_FAST64"))
#ifdef H5T_NATIVE_UINT_FAST64
	    return H5T_NATIVE_UINT_FAST64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_UINT_FAST8"))
#ifdef H5T_NATIVE_UINT_FAST8
	    return H5T_NATIVE_UINT_FAST8;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_UINT_LEAST16"))
#ifdef H5T_NATIVE_UINT_LEAST16
	    return H5T_NATIVE_UINT_LEAST16;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_UINT_LEAST32"))
#ifdef H5T_NATIVE_UINT_LEAST32
	    return H5T_NATIVE_UINT_LEAST32;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_UINT_LEAST64"))
#ifdef H5T_NATIVE_UINT_LEAST64
	    return H5T_NATIVE_UINT_LEAST64;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_UINT_LEAST8"))
#ifdef H5T_NATIVE_UINT_LEAST8
	    return H5T_NATIVE_UINT_LEAST8;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_ULLONG"))
#ifdef H5T_NATIVE_ULLONG
	    return H5T_NATIVE_ULLONG;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_ULONG"))
#ifdef H5T_NATIVE_ULONG
	    return H5T_NATIVE_ULONG;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_NATIVE_USHORT"))
#ifdef H5T_NATIVE_USHORT
	    return H5T_NATIVE_USHORT;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STRING"))
	    return H5T_STRING; /* This was manually enter to get the enumerated type */
	if (strEQ(name, "H5T_STD_B16BE"))
#ifdef H5T_STD_B16BE
	    return H5T_STD_B16BE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_B16LE"))
#ifdef H5T_STD_B16LE
	    return H5T_STD_B16LE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_B32BE"))
#ifdef H5T_STD_B32BE
	    return H5T_STD_B32BE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_B32LE"))
#ifdef H5T_STD_B32LE
	    return H5T_STD_B32LE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_B64BE"))
#ifdef H5T_STD_B64BE
	    return H5T_STD_B64BE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_B64LE"))
#ifdef H5T_STD_B64LE
	    return H5T_STD_B64LE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_B8BE"))
#ifdef H5T_STD_B8BE
	    return H5T_STD_B8BE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_B8LE"))
#ifdef H5T_STD_B8LE
	    return H5T_STD_B8LE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_I16BE"))
#ifdef H5T_STD_I16BE
	    return H5T_STD_I16BE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_I16LE"))
#ifdef H5T_STD_I16LE
	    return H5T_STD_I16LE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_I32BE"))
#ifdef H5T_STD_I32BE
	    return H5T_STD_I32BE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_I32LE"))
#ifdef H5T_STD_I32LE
	    return H5T_STD_I32LE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_I64BE"))
#ifdef H5T_STD_I64BE
	    return H5T_STD_I64BE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_I64LE"))
#ifdef H5T_STD_I64LE
	    return H5T_STD_I64LE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_I8BE"))
#ifdef H5T_STD_I8BE
	    return H5T_STD_I8BE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_I8LE"))
#ifdef H5T_STD_I8LE
	    return H5T_STD_I8LE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_REF_DSETREG"))
#ifdef H5T_STD_REF_DSETREG
	    return H5T_STD_REF_DSETREG;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_REF_OBJ"))
#ifdef H5T_STD_REF_OBJ
	    return H5T_STD_REF_OBJ;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_U16BE"))
#ifdef H5T_STD_U16BE
	    return H5T_STD_U16BE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_U16LE"))
#ifdef H5T_STD_U16LE
	    return H5T_STD_U16LE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_U32BE"))
#ifdef H5T_STD_U32BE
	    return H5T_STD_U32BE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_U32LE"))
#ifdef H5T_STD_U32LE
	    return H5T_STD_U32LE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_U64BE"))
#ifdef H5T_STD_U64BE
	    return H5T_STD_U64BE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_U64LE"))
#ifdef H5T_STD_U64LE
	    return H5T_STD_U64LE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_U8BE"))
#ifdef H5T_STD_U8BE
	    return H5T_STD_U8BE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_STD_U8LE"))
#ifdef H5T_STD_U8LE
	    return H5T_STD_U8LE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_UNIX_D32BE"))
#ifdef H5T_UNIX_D32BE
	    return H5T_UNIX_D32BE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_UNIX_D32LE"))
#ifdef H5T_UNIX_D32LE
	    return H5T_UNIX_D32LE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_UNIX_D64BE"))
#ifdef H5T_UNIX_D64BE
	    return H5T_UNIX_D64BE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_UNIX_D64LE"))
#ifdef H5T_UNIX_D64LE
	    return H5T_UNIX_D64LE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "H5T_REFERENCE"))
	    return H5T_REFERENCE; /* This was manually enter to get the enumerated type */
	if (strEQ(name, "H5R_DATASET_REGION"))
	    return H5R_DATASET_REGION; /* This was manually enter to get the enumerated type */
	break;
    case 'I':
	break;
    case 'J':
	break;
    case 'K':
	break;
    case 'L':
	break;
    case 'M':
	break;
    case 'N':
	break;
    case 'O':
	break;
    case 'P':
	break;
    case 'Q':
	break;
    case 'R':
	break;
    case 'S':
	break;
    case 'T':
	break;
    case 'U':
	break;
    case 'V':
	break;
    case 'W':
	break;
    case 'X':
	break;
    case 'Y':
	break;
    case 'Z':
	break;
    }
    errno = EINVAL;
    return 0;

not_there:
    errno = ENOENT;
    return 0;
}

/* ############################################################# */
EOXS

pp_addxs('',<<'EOXS');

hid_t
constant(name,arg)
	char *		name
	int		arg


EOXS
############### Add Autoload Routine for the hdf5 constants ##########

pp_addpm( {At => Top}, <<'EOPM');

use PDL::Lite;
use PDL::Char;



# Require needed here becuase dataset uses some of the XS 
#  calls that are defined in PDL::IO::HDF5 (like PDL::IO::HDF5::H5T_NATIVE_CHAR() )
#  Doing a 'use' would make use of the calls before they are defined.
#
require PDL::IO::HDF5::Group;
require PDL::IO::HDF5::Dataset;


use Carp;

sub AUTOLOAD {
    # This AUTOLOAD is used to 'autoload' constants from the constant()
    # XS function.  If a constant is not found then control is passed
    # to the AUTOLOAD in AutoLoader.

    my $constname;
    ($constname = $AUTOLOAD) =~ s/.*:://;
    croak "& not defined" if $constname eq 'constant';
    my $val = constant($constname, @_ ? $_[0] : 0);
    if ($! != 0) {
	if ($! =~ /Invalid/) {
	    $AutoLoader::AUTOLOAD = $AUTOLOAD;
	    goto &AutoLoader::AUTOLOAD;
	}
	else {
		croak "Your vendor has not defined hdf5 macro $constname";
	}
    }
    *$AUTOLOAD = sub { $val };
    goto &$AUTOLOAD;
}
EOPM

# Code that implements the dataset count and dataset name functions
pp_addxs('',<<'EOXS');

# Code to get the number of datasets in a group

int
H5GgetDatasetCount( groupID, groupName )
	hid_t	groupID
	char * 	groupName
CODE:
	int	dsetCount = 0;
        H5Giterate(groupID, groupName, NULL, incIfDset, &dsetCount);
	RETVAL = dsetCount;
OUTPUT:
	RETVAL


# Code to get the names of the datasets in a group

void
H5GgetDatasetNames( groupID, groupName )
	hid_t	groupID
	char * 	groupName
PREINIT:
	int	dsetCount = 0;
	char ** datasetNames;  /* Array of dataset names */
	char ** datasetPtr;    /* temp pointer to datasetNames */
	int i; 	               /* Index variable */
PPCODE:
	/* Get the number of datasets */
        H5Giterate(groupID, groupName, NULL, incIfDset, &dsetCount);
	
	if( dsetCount > 0){ /* Datasets found */
		
		/* Allocate Space  for array of strings */
		datasetNames = (char **) malloc( dsetCount * sizeof(char *));
		if( datasetNames == NULL){
			printf("PDL::IO::HDF5; out of Memory in H5GgetDatasetNames\n");
			exit(1);
		}
 
		datasetPtr = datasetNames;

		H5Giterate(groupID, groupName, NULL, getName_if_Dset, &datasetPtr);

		EXTEND(SP, dsetCount); /* Make room for results on the return stack */
		for( i = 0; i< dsetCount; i++){ /* Push Names onto return stack */
		       /*  printf("Name found = '%s'\n",datasetNames[i]); */
		       PUSHs(sv_2mortal(newSVpv(datasetNames[i],0)));
		       free(datasetNames[i]); /* Release Memory */
		}

		free(datasetNames);
	}


# Code to get the number of groups in a group/file

int
H5GgetGroupCount( groupID, groupName )
	hid_t	groupID
	char * 	groupName
CODE:
	int	groupCount = 0;
        H5Giterate(groupID, groupName, NULL, incIfGroup, &groupCount);
	RETVAL = groupCount;
OUTPUT:
	RETVAL


# Code to get the names of the groups in a group/file

void
H5GgetGroupNames( groupID, groupName )
	hid_t	groupID
	char * 	groupName
PREINIT:
	int	groupCount = 0;
	char ** groupNames;     /* Array of group names */
	char ** groupPtr;    /* temp pointer to groupnames */
	int i; 	               /* Index variable */
PPCODE:
	/* Get the number of datasets */
        H5Giterate(groupID, groupName, NULL, incIfGroup, &groupCount);
	
	if( groupCount > 0){ /* Groups found */
		
		/* Allocate Space  for array of strings */
		groupNames = (char **) malloc( groupCount * sizeof(char *));
		if( groupNames == NULL){
			printf("PDL::IO::HDF5; out of Memory in H5GgetGroupNames\n");
			exit(1);
		}
 
		groupPtr = groupNames;

		H5Giterate(groupID, groupName, NULL, getName_if_Group, &groupPtr);

		EXTEND(SP, groupCount); /* Make room for results on the return stack */
		for( i = 0; i< groupCount; i++){ /* Push Names onto return stack */
		       /*  printf("Name found = '%s'\n",datasetNames[i]); */
		       PUSHs(sv_2mortal(newSVpv(groupNames[i],0)));
		       free(groupNames[i]); /* Release Memory */
		}

		free(groupNames);
	}


# Code to get the maximum length of strings in a ragged character array
int
findMaxVarLenSize( buf, numelem )
	I8 *	buf
	int 	numelem
CODE:
	int     i;
	int     maxStrSize;
	int     len;
	char**  rdata; 
	/* Convert input generic pointer to character array */
	rdata = (char **) buf;

        /* Find max string length */
        maxStrSize = 0;
        for(i=0; i<numelem; i++) {
		if( rdata[i] ){ /* Ignore null entries */
                	/* printf("String %d = '%s'\n", i, rdata[i]); */
                	len = strlen(rdata[i]);
                	if( len > maxStrSize ) maxStrSize = len;
		}
        } /* end for */
        RETVAL = maxStrSize;
OUTPUT:
	RETVAL

	
# Function to copy the variable length strings from an input buffer varlenbuff to a supplied
#   fixed-length string buffer fixedbuf.
#    Number of elements (numelem) and maximum length of any variable length string (maxVarlensize)
#    must be supplied.
#  Output is the number of elements converted
int
copyVarLenToFixed( varlenbuff, fixedbuf, numelem, maxVarlensize )
	I8 *	varlenbuff
	I8 *	fixedbuf
	int 	numelem
	int 	maxVarlensize
CODE:
        int fixlenbufferInc; /* size of strings, including the null byte */
	int     i;
	char**  rdata; 
	char*   tempPtr;
	
        fixlenbufferInc = maxVarlensize + 1; /* size of strings, including the null byte */

	/* Convert input generic pointer to character array */
	rdata = (char **) varlenbuff;
	tempPtr = (char*) fixedbuf;

        /* Copy variable length strings to fixed length strings */
        for(i=0; i<numelem; i++, tempPtr += fixlenbufferInc ) {
	     if( rdata[i] ){ /* Only copy non-null strings */
             	strncpy(tempPtr, rdata[i], fixlenbufferInc);
	     }
	     else{  /* Null Strings: Copy as zero length */
             	strncpy(tempPtr, "", fixlenbufferInc);
	     }
        }
        RETVAL = numelem;
OUTPUT:
	RETVAL

# Code size of a pointer for the current platform
#  This should return 4 on 32bit machines and 8 on 64bit machines
int
bufPtrSize()
CODE:
        RETVAL = sizeof(void *);
OUTPUT:
	RETVAL

# Sub to add the H5T_VARIABLE constant
#  This is added manually here, rather than regenerate the constant function above
hid_t
H5T_VARIABLE()
CODE:
        RETVAL = H5T_VARIABLE;
OUTPUT:
	RETVAL

EOXS

# Don't import anything from core but barf
#  (Don't wan't to pollute our namespace)
pp_core_importList(' qw/ barf/');
 # set to not export anything. (This is a OO package, it doesn't need to export any methods.)
pp_export_nothing;

pp_done();