Page tree

The license could not be verified: License Certificate has expired!

Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

Content Layer
id1195548671
Content Column
width50.00001%
id1195578110
classrm_pagetree_col mobile-hide
Content Block
id1195578111
 
Content Column
width50.00001%
id1195548673
classhdf-rm-main-column
Content Block
id1195548672

Include Content
render-without-blockstrue
page.rm-navbar
HTML Wrap
classhdf-print-only

Page Title

HTML Wrap
classhdf-rm-summary-block

Hdf rm anchor
AnchorNamesummary

Excerpt

Removes the link to an object from a group.

HTML Wrap
classhdf-rm-content-block
Note

This function is deprecated in favor of the function H5L_DELETE.

Hdf rm anchor
AnchorNameprocedure

HTML Wrap
classhdf-rm-section
HTML Wrap
classhdf_procedure

H5G_UNLINK(loc_id, name)

Hdf rm anchor
AnchorNamesignature

HTML Wrap
classhdf-rm-section
HTML Wrap
classhdf-togglebox hdf-c

HTML Add Class
hdf-togglebutton-visible
hdf-togglebutton-visible
selector.hdf-togglebutton.hdf-c

HTML
<pre><code class="language-c">herr_t H5Gunlink(hid_t loc_id, const char *name )</code></pre>
HTML Wrap
classhdf-togglebox hdf-fortran hdf-togglebox-hidden

HTML Add Class
hdf-togglebutton-visible
hdf-togglebutton-visible
selector.hdf-togglebutton.hdf-fortran

HTML
<pre><code class="language-fortran">SUBROUTINE h5gunlink_f(loc_id, name, hdferr)
  IMPLICIT NONE
  INTEGER(HID_T), INTENT(IN) :: loc_id   ! File or group identifier
  CHARACTER(LEN=*), INTENT(IN) :: name   ! Name of the object to unlink 
  INTEGER, INTENT(OUT) :: hdferr         ! Error code 
                                         ! 0 on success and -1 on failure
END SUBROUTINE h5gunlink_f</code></pre>

Hdf rm anchor
AnchorNameparameters

HTML Wrap
classhdf-rm-section
hid_t loc_idIN: Identifier of the file or group containing the object.
const char * name    IN: Name of the object to unlink.

Hdf rm anchor
AnchorNamedescription

HTML Wrap
classhdf-rm-section

H5Gunlink removes H5G_UNLINK removes the object specified by name from the group graph and decrements the link count for the object to which name points. This action eliminates any association between name and the object to which name pointed.

Object headers keep track of how many hard links refer to an object; when the link count reaches zero, the object can be removed from the file. Objects which are open are not removed until all identifiers to the object are closed.

If the link count reaches zero, all file space associated with the object will be released, i.e., identified in memory as freespace. If any object identifier is open for the object, the space will not be released until after the object identifier is closed.

Note that space identified as freespace is available for re-use only as long as the file remains open; once a file has been closed, the HDF5 library loses track of freespace. See Freespace Management“Freespace Management” in the HDF5 User's Guide for further details.

Warning

Exercise care in unlinking groups as it is possible to render data in a file inaccessible with H5Gunlink. See The Group Interface in H5G_UNLINK. See The Group Interface in the HDF5 User's Guide.

Hdf rm anchor
AnchorNamereturns

HTML Wrap
classhdf-rm-section

Returns a non-negative value if successful; otherwise returns a negative value.

Hdf rm anchor
AnchorNameexample

HTML Wrap
classhdf-rm-section

Coming soon!

Comment (Hide)
HTML Wrap
classhdf-togglebox hdf-c

Bitbucket Server file
repoSlughdf5
branchIdrefs/heads/1.10/master
projectKeyHDFFV
filepathexamples/h5_subset.c
showLineNumberstrue
lineStart32
progLangcpp
lineEnd42
applicationLink5ac7b370-7412-3c8c-ad20-807a68261336

HTML Wrap
classhdf-togglebox hdf-fortran hdf-togglebox-hidden

Bitbucket Server file
repoSlughdf5
branchIdrefs/heads/1.10/master
projectKeyHDFFV
filepathfortran/examples/compound.f90
showLineNumberstrue
lineStart25
progLangplain
lineEnd35
applicationLink5ac7b370-7412-3c8c-ad20-807a68261336

 

Hdf rm anchor
AnchorNamehistory

HTML Wrap
classhdf-rm-section
C
Release    Change
1.8.0Function deprecated in this release.