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JAVA

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C

 

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H5T_GET_CLASS

Returns the datatype class identifier.

Procedure:

H5T_GET_CLASS(dtype_id)

Signature:

H5T_class_t H5Tget_class( hid_t dtype_id )

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

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

Description:

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.

Returns:

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

Example:

examples / h5_subset.c [32:42]  1.10/master  HDFFV/hdf5
int
main (void)
{
    hsize_t     dims[2], dimsm[2];   
    int         data[DIM0][DIM1];           /* data to write */
    int         sdata[DIM0_SUB][DIM1_SUB];  /* subset to write */
    int         rdata[DIM0][DIM1];          /* buffer for read */
 
    hid_t       file_id, dataset_id;        /* handles */
    hid_t       dataspace_id, memspace_id; 

     PROGRAM COMPOUNDEXAMPLE

     USE HDF5 ! This module contains all necessary modules

     IMPLICIT NONE

     CHARACTER(LEN=11), PARAMETER :: filename = "compound.h5" ! File name
     CHARACTER(LEN=8), PARAMETER :: dsetname = "Compound"     ! Dataset name
     INTEGER, PARAMETER :: dimsize = 6 ! Size of the dataset

     INTEGER(HID_T) :: file_id       ! File identifier

c++ / examples / create.cpp [33:43]  1.10/master  HDFFV/hdf5
int main (void)
{
   /*
    * Data initialization.
    */
   int i, j;
   int data[NX][NY];          // buffer for data to write
   for (j = 0; j < NX; j++)
   {
      for (i = 0; i < NY; i++)

public class H5Ex_D_Chunk {
    private static String FILENAME = "H5Ex_D_Chunk.h5";
    private static String DATASETNAME = "DS1";
    private static final int DIM_X = 6;
    private static final int DIM_Y = 8;
    private static final int CHUNK_X = 4;
    private static final int CHUNK_Y = 4;
    private static final int RANK = 2;
    private static final int NDIMS = 2;

--- Last Modified: November 15, 2017 | 09:10 AM