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Hdf rm anchor
AnchorNamesummary

Excerpt

Determines whether an attribute with a given name exists on an object

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classhdf-rm-content-block

Hdf rm anchor
AnchorNameprocedure

Procedure:
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classhdf-rm-section
HTML Wrap
classhdf_procedure

H5A_EXISTS(obj_id, attr_name)

Hdf rm anchor
AnchorNamesignature

Signature:
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classhdf-rm-section
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classhdf-togglebox hdf-c

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

HTML
<pre><code class="language-c">htri_t H5Aexists
(
    hid_t       obj_id,
    const char *attr_name
)</code></pre>
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classhdf-togglebox hdf-fortran hdf-togglebox-hidden

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<pre><code class="language-fortran">SUBROUTINE h5aexists_f(obj_id, attr_name, attr_exists, hdferr)
  IMPLICIT NONE
  INTEGER(HID_T), INTENT(IN) :: obj_id      ! Object identifier
  CHARACTER(LEN=*), INTENT(IN) :: attr_name ! Attribute name
  LOGICAL, INTENT(OUT) :: attr_exists       ! .TRUE. if exists, .FALSE. otherwise
  INTEGER, INTENT(OUT) :: hdferr            ! Error code:
                                            ! 0 on success and -1 on failure 
END SUBROUTINE</code></pre>

Hdf rm anchor
AnchorNameparameters

Parameters:
HTML Wrap
classhdf-rm-section
hid_t obj_idIN: Object identifier; may be a file, group, dataset, or named datatype
const char * attr_name    IN: Attribute name

Hdf rm anchor
AnchorNamedescription

Description:
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classhdf-rm-section

H5A_EXISTS determines whether the attribute attr_name exists on the object specified by obj_id

Hdf rm anchor
AnchorNamereturns

Returns:
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classhdf-rm-section

Returns a positive value if  attr_name  exists. 
Returns 0 if  attr_name  does not exist. 
Returns a negative value when the function fails.

Hdf rm anchor
AnchorNameexample

Example:
HTML Wrap
classhdf-rm-section

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Comment (Hide)
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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

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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

History:
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C
Release    Change
1.8.0Function introduced in this release.