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! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
! Copyright by The HDF Group. *
! Copyright by the Board of Trustees of the University of Illinois. *
! All rights reserved. *
! *
! This file is part of HDF5. The full HDF5 copyright notice, including *
! terms governing use, modification, and redistribution, is contained in *
! the COPYING file, which can be found at the root of the source code *
! distribution tree, or in https://www.hdfgroup.org/licenses. *
! If you do not have access to either file, you may request a copy from *
! help@hdfgroup.org. *
! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
!
!
! The following example shows how to write and read to/from an existing dataset.
! It opens the file created in the previous example, obtains the dataset
! identifier, writes the data to the dataset in the file,
! then reads the dataset to memory.
!
! This example is used in the HDF5 Tutorial.
PROGRAM H5_RDWT
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 :: error ! Error flag
INTEGER :: i, j
INTEGER, DIMENSION(4,6) :: dset_data, data_out ! Data buffers
INTEGER(HSIZE_T), DIMENSION(2) :: data_dims
!
! Initialize the dset_data array.
!
DO i = 1, 4
DO j = 1, 6
dset_data(i,j) = (i-1)*6 + j
END DO
END DO
!
! Initialize FORTRAN interface.
!
CALL h5open_f(error)
!
! Open an existing file.
!
CALL h5fopen_f (filename, H5F_ACC_RDWR_F, file_id, error)
!
! Open an existing dataset.
!
CALL h5dopen_f(file_id, dsetname, dset_id, error)
!
! Write the dataset.
!
data_dims(1) = 4
data_dims(2) = 6
CALL h5dwrite_f(dset_id, H5T_NATIVE_INTEGER, dset_data, data_dims, error)
!
! Read the dataset.
!
CALL h5dread_f(dset_id, H5T_NATIVE_INTEGER, data_out, data_dims, error)
!
! Close the dataset.
!
CALL h5dclose_f(dset_id, error)
!
! Close the file.
!
CALL h5fclose_f(file_id, error)
!
! Close FORTRAN interface.
!
CALL h5close_f(error)
END PROGRAM H5_RDWT
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