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Hdf rm anchor
AnchorNamesummary

Excerpt

Determines whether a class of user-defined links is registered

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Hdf rm anchor
AnchorNameprocedure

Procedure:
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classhdf_procedure

H5L_IS_REGISTERED(link_cls_id)

Hdf rm anchor
AnchorNamesignature

Signature:
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<pre><code class="language-c">htri_t H5Lis_registered( H5L_type_t link_cls_id )</code></pre>
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<pre><code class="language-fortran">SUBROUTINE H5Lis_registered_f(link_cls_id, registered, hdferr)
  IMPLICIT NONE
  INTEGER, INTENT(IN) :: link_cls_id  ! User-defined link class identifier
  LOGICAL, INTENT(OUT) :: registered  ! .TRUE.  - if the link class is registered
                                      ! .FALSE. - if it is unregistered
  INTEGER, INTENT(OUT) :: hdferr      ! Error code:
                                      ! 0 on success and -1 on failure
END SUBROUTINE H5Lis_registered_f</code></pre>

Hdf rm anchor
AnchorNameparameters

Parameters:
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H5L_type_t link_cls_id    IN: User-defined link class identifier

Hdf rm anchor
AnchorNamedescription

Description:
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H5L_IS_REGISTERED tests whether a user-defined link class is currently registered, either by the HDF5 library or by the user through the use of H5L_REGISTER .

A link class must be registered to create new links of that type or to traverse existing links of that type.

Hdf rm anchor
AnchorNamereturns

Returns:
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Returns a positive value if the link class has been registered. 
Returns 0 if the link class has not been registered. 
Returns a negative value if the identifier is not a valid user-defined class identifier or if the function fails.

Hdf rm anchor
AnchorNameexample

Example:
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filepathexamples/h5_subset.c
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applicationLink5ac7b370-7412-3c8c-ad20-807a68261336

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repoSlughdf5
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projectKeyHDFFV
filepathfortran/examples/compound.f90
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lineStart25
progLangplain
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AnchorNamehistory

History:
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Release    Change
1.8.0Function introduced in this release.