hdf5/fortran/examples/rwdsetexample.f90
Elena Pourmal fef182fd96 [svn-r3862]
Purpose:
    Codemaintenance
Description:
    read/write APIs have been changed.
Solution:
    Made necessary changes to the source code.
Platforms tested:
    Linux, Solaris 2.7, O2K, T3E
2001-04-26 22:52:24 -05:00

82 lines
1.8 KiB
Fortran

!
! 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.
!
PROGRAM RWDSETEXAMPLE
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, DIMENSION(7) :: 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 RWDSETEXAMPLE