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Hdf rm purpose

Excerpt

Determines the number of bytes required to store variable-length (VL) data

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Hdf rm procedure

H5D_VLEN_GET_BUF_SIZE(dataset_id, type_id, space_id, size)

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Hdf rm c signature
herr_t H5Dvlen_get_buf_size(hid_t dataset_idhid_t type_idhid_t space_idhsize_t *size ) 
Hdf rm fortran signature
SUBROUTINE h5dvlen_get_max_len_f(dset_id, size, hdferr)
  IMPLICIT NONE
  INTEGER(HID_T), INTENT(IN) :: dset_id     ! Dataset identifier  
  INTEGER(HID_T), INTENT(IN) :: type_id     ! Datatype identifier  
  INTEGER(HID_T), INTENT(IN) :: space_id    ! Dataspace identifier  
            
  INTEGER(SIZE_T), INTENT(OUT)  :: elem_len ! Maximum length of the element
  INTEGER, INTENT(OUT) :: hdferr            ! Error code  
                                            ! 0 on success and -1 on failure
END SUBROUTINE h5dvlen_get_max_len_f
Hdf rm parameters
hid_t dataset_id    IN: Identifier of the dataset to query
hid_t type_idIN: Datatype identifier
hid_t space_idIN: Dataspace identifier
hsize_t *sizeOUT: The size in bytes of the memory buffer required to store the VL data
Hdf rm description

H5D_VLEN_GET_BUF_SIZE determines the number of bytes required to store the VL data from the dataset, using the space_id for the selection in the dataset on disk and the type_id for the memory representation of the VL data in memory.

*size is returned with the number of bytes required to store the VL data in memory.

Hdf rm returnvals

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

Hdf rm anchor
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projectKeyHDFFV
filepathexamples/h5_subset.c
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lineStart32
progLangcpp
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applicationLink5ac7b370-7412-3c8c-ad20-807a68261336

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branchIdrefs/heads/1.10/master
projectKeyHDFFV
filepathfortran/examples/compound.f90
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progLangplain
lineEnd35
applicationLink5ac7b370-7412-3c8c-ad20-807a68261336

Hdf rm history
Release    C
Release    ChangeFortran90
1.4.5 Function Fortran 90 function introduced in this release.
1.4.0Function C function introduced in this release.