hdf5/fortran/examples/h5_crtgrp.f90

! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
!   Copyright by The HDF Group.                                               *
!   Copyright by the Board of Trustees of the University of Illinois.         *
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!   terms governing use, modification, and redistribution, is contained in    *
!   the COPYING file, which can be found at the root of the source code       *
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! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
!
!
! The following example shows how to create and close a group.
! It creates a file called 'group.h5', creates a group
! called MyGroup in the root group, and then closes the group and file.
!
! This example is used in the HDF5 Tutorial.

PROGRAM H5_CRTGRP

  USE HDF5 ! This module contains all necessary modules

  IMPLICIT NONE

  CHARACTER(LEN=9), PARAMETER :: filename = "groupf.h5" ! File name
  CHARACTER(LEN=7), PARAMETER :: groupname = "MyGroup"  ! Group name

  INTEGER(HID_T) :: file_id       ! File identifier
  INTEGER(HID_T) :: group_id      ! Group identifier

  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 a group named "/MyGroup" in the file.
  !
  CALL h5gcreate_f(file_id, groupname, group_id, error)

  !
  ! Close the group.
  !
  CALL h5gclose_f(group_id, error)

  !
  ! Terminate access to the file.
  !
  CALL h5fclose_f(file_id, error)
  !
  !    Close FORTRAN interface.
  !
  CALL h5close_f(error)

END PROGRAM H5_CRTGRP