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<html>
<head><title>
FORTRAN Reference API -- h5r
</title>

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<body bgcolor="#FFFFFF">



<center>
<h1>The FORTRAN 90 API to HDF5<br>h5r: References</h1>
</center>


<dl>


<p>&nbsp;
<p>&nbsp;
<hr>
<p>&nbsp;
<a name="h5rcreate_f">
<p>&nbsp;
</a>


<dt><strong>FORTRAN interface:</strong>  &nbsp <strong>h5rcreate_f</strong>
<br><strong>To create an object reference</strong>
<pre>

          SUBROUTINE h5rcreate_f(loc_id, name, ref, hdferr) 
            IMPLICIT NONE
            INTEGER(HID_T), INTENT(IN) :: loc_id   ! Location identifier 
            CHARACTER(LEN=*), INTENT(IN) :: name   ! Name of the object at location specified
                                                   ! by loc_id identifier 
            TYPE(hobj_ref_t_f), INTENT(OUT) :: ref   ! Object reference 
            INTEGER, INTENT(OUT) :: hdferr         ! Error code 

          END SUBROUTINE h5rcreate_f
</pre>


<dt><strong>To create a region reference</strong>
<pre>

          SUBROUTINE h5rcreate_f(loc_id, name, space_id, ref, hdferr) 
            IMPLICIT NONE
            INTEGER(HID_T), INTENT(IN) :: loc_id   ! Location identifier 
            CHARACTER(LEN=*), INTENT(IN) :: name   ! Name of the dataset at location specified
                                                   ! by loc_id identifier 
            INTEGER(HID_T), INTENT(IN) :: space_id ! Dataset's dataspace identifier 
            TYPE(hdset_reg_ref_t_f), INTENT(OUT) :: ref ! Dataset region reference 
            INTEGER, INTENT(OUT) :: hdferr         ! Error code 

          END SUBROUTINE h5rcreate_f
</pre>


<p>&nbsp;
<p>&nbsp;
<hr>
<p>&nbsp;
<a name="h5rdereference_f">
<p>&nbsp;
</a>


<dt><strong>FORTRAN interface:</strong>  &nbsp <strong>h5rdereference_f</strong>
<br><strong>To dereference an object</strong>
<pre>

          SUBROUTINE h5rdereference_f(dset_id, ref, obj_id, hdferr) 
            IMPLICIT NONE
            INTEGER(HID_T), INTENT(IN) :: dset_id   ! Dataset identifier 
            TYPE(hobj_ref_t_f), INTENT(IN) :: ref   ! Object reference 
            INTEGER(HID_T), INTENT(OUT) :: obj_id   ! Object identifier 
            INTEGER, INTENT(OUT) :: hdferr         ! Error code 

          END SUBROUTINE h5rdereference_f
</pre>


<dt><strong>To dereference a region</strong>
<pre>

          SUBROUTINE h5rdereference_f(dset_id, ref, obj_id, hdferr) 
            IMPLICIT NONE
            INTEGER(HID_T), INTENT(IN) :: dset_id   ! Dataset identifier 
            TYPE(hdset_reg_ref_t_f), INTENT(IN) :: ref   ! Object reference 
            INTEGER(HID_T), INTENT(OUT) :: obj_id   ! Object identifier 
            INTEGER, INTENT(OUT) :: hdferr          ! Error code 
          
          END SUBROUTINE h5rdereference_f
</pre>


<p>&nbsp;
<p>&nbsp;
<hr>
<p>&nbsp;
<a name="h5rget_region_f">
<p>&nbsp;
</a>


<dt><strong>FORTRAN interface:</strong>  &nbsp <strong>h5rget_region_f</strong>
<pre>

          SUBROUTINE h5rget_region_f(dset_id, ref, space_id, hdferr) 
            IMPLICIT NONE
            INTEGER(HID_T), INTENT(IN) :: dset_id   ! Dataset identifier 
            TYPE(hdset_reg_ref_t_f), INTENT(IN) :: ref   ! Dataset region reference 
            INTEGER(HID_T), INTENT(OUT) :: space_id   ! Space identifier 
            INTEGER, INTENT(OUT) :: hdferr          ! Error code
 
          END SUBROUTINE h5rget_region_f
</pre>


<p>&nbsp;
<p>&nbsp;
<hr>
<p>&nbsp;
<a name="h5rget_object_type_f">
<p>&nbsp;
</a>


<dt><strong>FORTRAN interface:</strong>  &nbsp <strong>h5rget_object_type_f</strong>
<pre>

          SUBROUTINE h5rget_object_type_f(dset_id, ref, obj_type, hdferr) 
            IMPLICIT NONE
            INTEGER(HID_T), INTENT(IN) :: dset_id   ! Dataset identifier 
            TYPE(hobj_ref_t_f), INTENT(IN) :: ref   ! Object reference 
            INTEGER, INTENT(OUT) :: obj_type   ! Object type  
                                               !  H5G_UNKNOWN_F     (-1)
                                               !  H5G_LINK_F         0
                                               !  H5G_GROUP_F        1
                                               !  H5G_DATASET_F      2
                                               !  H5G_TYPE_F         3

            INTEGER, INTENT(OUT) :: hdferr          ! Error code 

          END SUBROUTINE h5rget_object_type_f
</pre>

 
</dl>

<p>&nbsp;
<p>&nbsp;
<hr>


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<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> 
<br>
Describes HDF5 Release 1.5, Unreleased Development Branch
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Last modified:  3 April 2000

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