01_h5_crtdat.f90

! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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!
!
! The following example shows how to create an empty dataset.
! It creates a file called 'dsetf.h5', defines the
! dataset dataspace, creates a dataset which is a 4x6 integer array,
! and then closes the dataspace, the dataset, and the file.
!
! This example is used in the HDF5 Tutorial.

PROGRAM H5_CRTDAT

  USE HDF5 ! This module contains all necessary modules

  IMPLICIT NONE

  CHARACTER(LEN=8), PARAMETER :: filename = "dsetf.h5" ! File name
  CHARACTER(LEN=4), PARAMETER :: dsetname = "dset"     ! Dataset name

  INTEGER(HID_T) :: file_id       ! File identifier
  INTEGER(HID_T) :: dset_id       ! Dataset identifier
  INTEGER(HID_T) :: dspace_id     ! Dataspace identifier


  INTEGER(HSIZE_T), DIMENSION(2) :: dims = (/4,6/) ! Dataset dimensions
  INTEGER     ::   rank = 2                        ! Dataset rank

  INTEGER     ::   error ! Error flag

  !
  ! Initialize FORTRAN interface.
  !
  CALL h5open_f(error)

  !
  ! Create a new file using default properties.
  !
  CALL h5fcreate_f(filename, H5F_ACC_TRUNC_F, file_id, error)

  !
  ! Create the dataspace.
  !
  CALL h5screate_simple_f(rank, dims, dspace_id, error)

  !
  ! Create the dataset with default properties.
  !
  CALL h5dcreate_f(file_id, dsetname, H5T_NATIVE_INTEGER, dspace_id, &
       dset_id, error)

  !
  ! End access to the dataset and release resources used by it.
  !
  CALL h5dclose_f(dset_id, error)

  !
  ! Terminate access to the data space.
  !
  CALL h5sclose_f(dspace_id, error)

  !
  ! Close the file.
  !
  CALL h5fclose_f(file_id, error)

  !
  ! Close FORTRAN interface.
  !
  CALL h5close_f(error)

END PROGRAM H5_CRTDAT