mirror of
https://github.com/HDFGroup/hdf5.git
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427ff7da28
Bug Fix/Code Cleanup/Doc Cleanup/Optimization/Branch Sync :-)
Description:
Generally speaking, this is the "signed->unsigned" change to selections.
However, in the process of merging code back, things got stickier and stickier
until I ended up doing a big "sync the two branches up" operation. So... I
brought back all the "infrastructure" fixes from the development branch to the
release branch (which I think were actually making some improvement in
performance) as well as fixed several bugs which had been fixed in one branch,
but not the other.
I've also tagged the repository before making this checkin with the label
"before_signed_unsigned_changes".
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel & fphdf5
FreeBSD 4.10 (sleipnir) w/threadsafe
FreeBSD 4.10 (sleipnir) w/backward compatibility
Solaris 2.7 (arabica) w/"purify options"
Solaris 2.8 (sol) w/FORTRAN & C++
AIX 5.x (copper) w/parallel & FORTRAN
IRIX64 6.5 (modi4) w/FORTRAN
Linux 2.4 (heping) w/FORTRAN & C++
Misc. update:
117 lines
3.9 KiB
Fortran
117 lines
3.9 KiB
Fortran
! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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! Copyright by the Board of Trustees of the University of Illinois. *
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! All rights reserved. *
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! *
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! This file is part of HDF5. The full HDF5 copyright notice, including *
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! terms governing use, modification, and redistribution, is contained in *
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! the files COPYING and Copyright.html. COPYING can be found at the root *
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! of the source code distribution tree; Copyright.html can be found at the *
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! root level of an installed copy of the electronic HDF5 document set and *
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! is linked from the top-level documents page. It can also be found at *
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! http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
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! access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
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! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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!
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! This example shows how to create and write a dataset attribute.
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! It opens the existing file 'dset.h5', obtains the identifier of
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! the dataset "/dset", defines attribute's dataspace,
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! creates dataset attribute, writes the attribute, and then closes
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! the attribute's dataspace, attribute, dataset, and file.
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PROGRAM ATTREXAMPLE
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USE HDF5 ! This module contains all necessary modules
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IMPLICIT NONE
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CHARACTER(LEN=8), PARAMETER :: filename = "dsetf.h5" ! File name
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CHARACTER(LEN=4), PARAMETER :: dsetname = "dset" ! Dataset name
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CHARACTER(LEN=9), PARAMETER :: aname = "attr_long" ! Attribute name
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INTEGER(HID_T) :: file_id ! File identifier
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INTEGER(HID_T) :: dset_id ! Dataset identifier
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INTEGER(HID_T) :: attr_id ! Attribute identifier
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INTEGER(HID_T) :: aspace_id ! Attribute Dataspace identifier
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INTEGER(HID_T) :: atype_id ! Attribute Dataspace identifier
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INTEGER(HSIZE_T), DIMENSION(1) :: adims = (/2/) ! Attribute dimension
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INTEGER :: arank = 1 ! Attribure rank
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INTEGER(SIZE_T) :: attrlen ! Length of the attribute string
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CHARACTER(LEN=80), DIMENSION(2) :: attr_data ! Attribute data
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INTEGER :: error ! Error flag
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INTEGER(HSIZE_T), DIMENSION(1) :: data_dims
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!
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! Initialize attribute's data
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!
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attr_data(1) = "Dataset character attribute"
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attr_data(2) = "Some other string here "
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attrlen = 80
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!
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! Initialize FORTRAN interface.
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!
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CALL h5open_f(error)
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!
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! Open an existing file.
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!
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CALL h5fopen_f (filename, H5F_ACC_RDWR_F, file_id, error)
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!
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! Open an existing dataset.
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!
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CALL h5dopen_f(file_id, dsetname, dset_id, error)
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!
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! Create scalar data space for the attribute.
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!
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CALL h5screate_simple_f(arank, adims, aspace_id, error)
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!
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! Create datatype for the attribute.
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!
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CALL h5tcopy_f(H5T_NATIVE_CHARACTER, atype_id, error)
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CALL h5tset_size_f(atype_id, attrlen, error)
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!
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! Create dataset attribute.
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!
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CALL h5acreate_f(dset_id, aname, atype_id, aspace_id, &
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attr_id, error)
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!
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! Write the attribute data.
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!
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data_dims(1) = 2
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CALL h5awrite_f(attr_id, atype_id, attr_data, data_dims, error)
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!
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! Close the attribute.
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!
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CALL h5aclose_f(attr_id, error)
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!
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! Terminate access to the data space.
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!
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CALL h5sclose_f(aspace_id, error)
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!
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! End access to the dataset and release resources used by it.
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!
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CALL h5dclose_f(dset_id, error)
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!
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! Close the file.
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!
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CALL h5fclose_f(file_id, error)
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!
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! Close FORTRAN interface.
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!
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CALL h5close_f(error)
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END PROGRAM ATTREXAMPLE
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