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Hdf rm anchor
AnchorNamesummary
Excerpt

Returns the datatype class identifier.

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Hdf rm anchor
AnchorNameprocedure

Procedure:
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classhdf_procedure

H5T_GET_CLASS(dtype_id)

Hdf rm anchor
AnchorNamesignature

Signature:
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<pre><code class="language-c">H5T_class_t H5Tget_class( hid_t dtype_id )</code></pre>

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<pre><code class="language-fortran">SUBROUTINE h5tget_class_f(type_id, class, hdferr) 
  IMPLICIT NONE
  INTEGER(HID_T), INTENT(IN) :: type_id  ! Datatype identifier 
  INTEGER, INTENT(OUT) :: class          ! Datatype class, possible values are:
                                         !    H5T_NO_CLASS_F 
                                         !    H5T_INTEGER_F 
                                         !    H5T_FLOAT_F
                                         !    H5T_STRING_F
                                         !    H5T_BITFIELD_F
                                         !    H5T_OPAQUE_F
                                         !    H5T_COMPOUND_F
                                         !    H5T_REFERENCE_F
                                         !    H5T_ENUM_F
                                         !    H5T_VLEN_F
                                         !    H5T_ARRAY_F
  INTEGER, INTENT(OUT) :: hdferr         ! Error code
                                         ! 0 on success and -1 on failure
END SUBROUTINE h5tget_class_f</code></pre>

Hdf rm anchor
AnchorNameparameters

Parameters:
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hid_t dtype_id    IN: Identifier of datatype to query.

Hdf rm anchor
AnchorNamedescription

Description:
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H5Tget_class returns the datatype class identifier.

Valid class identifiers, as defined in H5Tpublic.h, are:

  • H5T_INTEGER
  • H5T_FLOAT
  • H5T_STRING
  • H5T_BITFIELD
  • H5T_OPAQUE
  • H5T_COMPOUND
  • H5T_REFERENCE
  • H5T_ENUM
  • H5T_VLEN
  • H5T_ARRAY

Note that the library returns H5T_STRING for both fixed-length and variable-length strings.

Unsupported datatype: The time datatype class, H5T_TIME, is not supported. If H5T_TIME is used, the resulting data will be readable and modifiable only on the originating computing platform; it will not be portable to other platforms.

Hdf rm anchor
AnchorNamereturns

Returns:
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Returns datatype class identifier if successful; otherwise H5T_NO_CLASS (-1).

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AnchorNameexample

Example:
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