summaryrefslogtreecommitdiffstats
path: root/fortran/src/H5Rff.F90
blob: 624559088f3a2f497d9f22969bbec7f24722d079 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
!****h* ROBODoc/H5R
!
! NAME
!  MODULE H5R
!
! FILE
!  fortran/src/H5Rff.F90
!
! PURPOSE
!  This file contains Fortran interfaces for H5R functions.
!
! COPYRIGHT
! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
!   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://support.hdfgroup.org/ftp/HDF5/releases.  *
!   If you do not have access to either file, you may request a copy from     *
!   help@hdfgroup.org.                                                        *
! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
!
! NOTES
!
!       _____ __  __ _____   ____  _____ _______       _   _ _______
!      |_   _|  \/  |  __ \ / __ \|  __ \__   __|/\   | \ | |__   __|
! ****   | | | \  / | |__) | |  | | |__) | | |  /  \  |  \| |  | |    ****
! ****   | | | |\/| |  ___/| |  | |  _  /  | | / /\ \ | . ` |  | |    ****
! ****  _| |_| |  | | |    | |__| | | \ \  | |/ ____ \| |\  |  | |    ****
!      |_____|_|  |_|_|     \____/|_|  \_\ |_/_/    \_\_| \_|  |_|
!
!  If you add a new H5R function you must add the function name to the
!  Windows dll file 'hdf5_fortrandll.def.in' in the fortran/src directory.
!  This is needed for Windows based operating systems.
!
!*****

MODULE H5R
  USE, INTRINSIC :: ISO_C_BINDING, ONLY : C_PTR, C_CHAR, C_SIGNED_CHAR
  USE H5GLOBAL

  ! If you change the value of these parameters, do not forget to change corresponding
  ! values in the H5f90.h file.
  !        INTEGER, PARAMETER :: REF_OBJ_BUF_LEN = 2
  !        INTEGER, PARAMETER :: REF_REG_BUF_LEN = 3
  !
  !        TYPE hobj_ref_t_f
  !             INTEGER ref(REF_OBJ_BUF_LEN)
  !        END TYPE
  !
  !        TYPE hdset_reg_ref_t_f
  !             INTEGER ref(REF_REG_BUF_LEN)
  !        END TYPE
  !

  PRIVATE h5rget_object_type_obj_f
  PRIVATE h5rget_region_region_f, h5rget_region_ptr_f
  PRIVATE h5rcreate_object_f, h5rcreate_region_f, h5rcreate_ptr_f
  PRIVATE h5rdereference_object_f, h5rdereference_region_f, h5rdereference_ptr_f
  PRIVATE h5rget_name_object_f, h5rget_name_region_f, h5rget_name_ptr_f

  INTERFACE h5rget_object_type_f

     MODULE PROCEDURE h5rget_object_type_obj_f

  END INTERFACE

  TYPE :: hdset_reg_ref_t_f03
     INTEGER(C_SIGNED_CHAR), DIMENSION(1:H5R_DSET_REG_REF_BUF_SIZE_F) :: ref
  END TYPE hdset_reg_ref_t_f03

  INTERFACE h5rget_region_f

     MODULE PROCEDURE h5rget_region_region_f ! obsolete
     MODULE PROCEDURE h5rget_region_ptr_f  ! F2003

  END INTERFACE


  INTERFACE h5rcreate_f

     MODULE PROCEDURE h5rcreate_object_f ! obsolete
     MODULE PROCEDURE h5rcreate_region_f ! obsolete
     MODULE PROCEDURE h5rcreate_ptr_f  ! F2003

  END INTERFACE

  INTERFACE h5rdereference_f

     MODULE PROCEDURE h5rdereference_object_f ! obsolete
     MODULE PROCEDURE h5rdereference_region_f ! obsolete
     MODULE PROCEDURE h5rdereference_ptr_f ! F2003

  END INTERFACE

  INTERFACE h5rget_name_f

     MODULE PROCEDURE h5rget_name_object_f ! obsolete
     MODULE PROCEDURE h5rget_name_region_f ! obsolete
     MODULE PROCEDURE h5rget_name_ptr_f ! F2003

  END INTERFACE

  INTERFACE
     INTEGER FUNCTION h5rget_name_ptr_c(loc_id, ref_type, ref, name, name_len, size_default) &
          BIND(C, NAME='h5rget_name_ptr_c')
       IMPORT :: c_char, c_ptr
       IMPORT :: HID_T, SIZE_T
       IMPLICIT NONE
       INTEGER(HID_T), INTENT(IN) :: loc_id
       INTEGER, INTENT(IN) :: ref_type
       TYPE(C_PTR), INTENT(IN), VALUE :: ref
       CHARACTER(KIND=C_CHAR), DIMENSION(*), INTENT(IN) :: name
       INTEGER(SIZE_T) :: name_len
       INTEGER(SIZE_T) :: size_default
     END FUNCTION h5rget_name_ptr_c
  END INTERFACE

  INTERFACE
     INTEGER FUNCTION h5rdereference_ptr_c(obj_id, ref_type, ref, ref_obj_id) &
          BIND(C, NAME='h5rdereference_ptr_c')
       IMPORT :: c_ptr
       IMPORT :: HID_T
       IMPLICIT NONE
       INTEGER(HID_T), INTENT(IN) :: obj_id
       INTEGER, INTENT(IN) :: ref_type
       TYPE(C_PTR), INTENT(IN), VALUE :: ref
       INTEGER(HID_T), INTENT(OUT) :: ref_obj_id
     END FUNCTION h5rdereference_ptr_c
  END INTERFACE

  INTERFACE
     INTEGER FUNCTION h5rcreate_ptr_c(ref, loc_id, name, namelen, ref_type, space_id) &
          BIND(C, NAME='h5rcreate_ptr_c')
       IMPORT :: c_ptr, c_char
       IMPORT :: HID_T
       IMPLICIT NONE
       TYPE(C_PTR), VALUE :: ref
       INTEGER(HID_T), INTENT(IN) :: loc_id
       CHARACTER(KIND=C_CHAR), DIMENSION(*), INTENT(IN) :: name
       INTEGER :: namelen
       INTEGER, INTENT(IN) :: ref_type
       INTEGER(HID_T), INTENT(IN) :: space_id
     END FUNCTION h5rcreate_ptr_c
  END INTERFACE

  INTERFACE
     INTEGER FUNCTION h5rget_region_ptr_c(dset_id, ref, space_id) &
          BIND(C, NAME='h5rget_region_ptr_c')
       IMPORT :: c_ptr
       IMPORT :: HID_T
       IMPLICIT NONE
       INTEGER(HID_T), INTENT(IN) :: dset_id
       TYPE(C_PTR), VALUE :: ref
       INTEGER(HID_T), INTENT(OUT) :: space_id
     END FUNCTION h5rget_region_ptr_c
  END INTERFACE


CONTAINS

!****s* H5R/h5rget_object_type_obj_f
!
! NAME
!  h5rget_object_type_obj_f
!
! PURPOSE
!  Retrieves the type of object that an object reference points to.
!
! INPUTS
!  dset_id      - identifier of the dataset containing
!                  reference to the objects
!  ref              - reference to open
! OUTPUTS
!  obj_type      - object_type, possible values:
!                    H5G_UNKNOWN_F
!                    H5G_GROUP_F
!                    H5G_DATASET_F
!                    H5G_TYPE_F
!  hdferr      - Returns 0 if successful and -1 if fails
!
! AUTHOR
!  Elena Pourmal
!  August 12, 1999
!
! HISTORY
!  Explicit Fortran interfaces were added for
!  called C functions (it is needed for Windows
!  port).  February 28, 2001
!
! NOTES
!  This is a module procedure for the h5rget_object_type_f
!  subroutine.
! SOURCE
  SUBROUTINE h5rget_object_type_obj_f(dset_id, ref, obj_type, hdferr)
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: dset_id   ! Dataset identifier
    TYPE(hobj_ref_t_f), INTENT(IN) :: ref   ! Object reference
    INTEGER, INTENT(OUT) :: obj_type     ! Object type
                                         !  H5G_UNKNOWN_F
                                         !  H5G_GROUP_F
                                         !  H5G_DATASET_F
                                         !  H5G_TYPE_F
    INTEGER, INTENT(OUT) :: hdferr       ! Error code
!*****
    INTEGER(HADDR_T) :: ref_f          ! Local buffer to pass reference

    INTERFACE
       INTEGER FUNCTION h5rget_object_type_obj_c(dset_id, ref_f, obj_type) BIND(C, NAME='h5rget_object_type_obj_c')
         IMPORT :: HID_T, HADDR_T
         IMPLICIT NONE
         INTEGER(HID_T), INTENT(IN) :: dset_id
         INTEGER(HADDR_T) :: ref_f
         INTEGER, INTENT(OUT) :: obj_type
       END FUNCTION h5rget_object_type_obj_c
    END INTERFACE

    ref_f = ref%ref
    hdferr = h5rget_object_type_obj_c(dset_id, ref_f, obj_type )

  END SUBROUTINE h5rget_object_type_obj_f


!****s* H5R/h5rget_region_region_f
!
! NAME
!  h5rget_region_region_f
!
! PURPOSE
!  Retrieves a dataspace with the specified region selected
!
! INPUTS
!  dset_id      - identifier of the dataset containing
!                  reference to the regions
!  ref              - reference to open
! OUTPUTS
!  space_id      - dataspace identifier
!  hdferr      - Returns 0 if successful and -1 if fails
! AUTHOR
!  Elena Pourmal
!  August 12, 1999
!
! HISTORY
!  Explicit Fortran interfaces were added for
!  called C functions (it is needed for Windows
!  port).  February 28, 2001
!
! NOTES
!  This is a module procedure for the h5rget_region_f subroutine.
!
! SOURCE
  SUBROUTINE h5rget_region_region_f(dset_id, ref, space_id, hdferr)
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: dset_id      ! Dataset identifier
    TYPE(hdset_reg_ref_t_f), INTENT(IN) :: ref ! Dataset region reference
    INTEGER(HID_T), INTENT(OUT) :: space_id    ! Space identifier
    INTEGER, INTENT(OUT) :: hdferr             ! Error code
!*****
    INTEGER :: ref_f(REF_REG_BUF_LEN)          ! Local buffer to pass reference

    INTERFACE
       INTEGER FUNCTION h5rget_region_region_c(dset_id, ref_f, space_id) BIND(C, NAME='h5rget_region_region_c')
         IMPORT :: HID_T, REF_REG_BUF_LEN
         IMPLICIT NONE
         INTEGER(HID_T), INTENT(IN) :: dset_id
         INTEGER :: ref_f(REF_REG_BUF_LEN)
         INTEGER(HID_T), INTENT(OUT) :: space_id
       END FUNCTION h5rget_region_region_c
    END INTERFACE

    ref_f = ref%ref
    hdferr = h5rget_region_region_c(dset_id, ref_f, space_id )

  END SUBROUTINE h5rget_region_region_f

!****s* H5R/h5rget_region_ptr_f
!
! NAME
!  h5rget_region_ptr_f
!
! PURPOSE
!  Retrieves a dataspace with the specified region
!  selected using pointer
!
! INPUTS
!  dset_id      - identifier of the dataset containing
!                  reference to the regions
!  ref              - reference to open
! OUTPUTS
!  space_id      - dataspace identifier
!  hdferr      - Returns 0 if successful and -1 if fails
! AUTHOR
!  M. Scot Breitenfeld
!  August 4, 2012
!
! NOTES
!  This is a module procedure for the h5rget_region_f subroutine.
!
! SOURCE
  SUBROUTINE h5rget_region_ptr_f(dset_id, ref, space_id, hdferr)
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: dset_id      ! Dataset identifier
    TYPE(C_PTR), INTENT(IN) :: ref ! Dataset region reference
    INTEGER(HID_T), INTENT(OUT) :: space_id    ! Space identifier
    INTEGER, INTENT(OUT) :: hdferr             ! Error code
!*****

    hdferr = h5rget_region_ptr_c(dset_id, ref, space_id )

  END SUBROUTINE h5rget_region_ptr_f


!****s* H5R (F03)/h5rcreate_object_f
!
! NAME
!  h5rcreate_object_f
!
! PURPOSE
!  Creates reference to the object
!
! Inputs:
!  loc_id    - location identifier
!  name      - name of the object at the specified location
! Outputs:
!  ref          - reference to the specified object
!  hdferr    - returns 0 if successful and -1 if fails
! AUTHOR
!  Elena Pourmal
!  August 12, 1999
!
! HISTORY
!  Explicit Fortran interfaces were added for
!  called C functions (it is needed for Windows
!  port).  February 28, 2001
!
! NOTES
!  This is a module procedure for the h5rcreate_f subroutine.
!
! Signature:
  SUBROUTINE h5rcreate_object_f(loc_id, name, ref, hdferr)
    USE, INTRINSIC :: ISO_C_BINDING
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: loc_id   ! Location identifier
    CHARACTER(LEN=*), INTENT(IN) :: name   ! Name of the object at location specified
                                           ! by loc_id identifier
    TYPE(hobj_ref_t_f), INTENT(INOUT), TARGET :: ref   ! Object reference
    INTEGER, INTENT(OUT) :: hdferr         ! Error code
!*****
    INTEGER :: namelen                     ! Name length
    TYPE(C_PTR) :: f_ptr

    f_ptr = C_LOC(ref)

    namelen = LEN(name)

    hdferr = h5rcreate_ptr_c(f_ptr, loc_id, name, namelen, INT(0), INT(-1,HID_T))

  END SUBROUTINE h5rcreate_object_f

!****s* H5R (F90)/h5rcreate_region_f
!
! NAME
!  h5rcreate_region_f
!
! PURPOSE
!  Creates reference to the dataset region
!
! INPUTS
!  loc_id      - location identifier
!  name      - name of the dataset at the specified location
!  space_id      - dataspace identifier that describes selected region
! OUTPUTS
!  ref              - reference to the dataset region
!  hdferr        - returns 0 if successful and -1 if fails
! AUTHOR
!  Elena Pourmal
!  August 12, 1999
!
! HISTORY
!  Explicit Fortran interfaces were added for
!  called C functions (it is needed for Windows
!  port).  February 28, 2001
!
! NOTES
!  This is a module procedure for the h5rcreate_f subroutine.
!
! SOURCE
  SUBROUTINE h5rcreate_region_f(loc_id, name, space_id, ref, hdferr)
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: loc_id   ! Location identifier
    CHARACTER(LEN=*), INTENT(IN) :: name   ! Name of the dataset at location specified
                                           ! by loc_id identifier
    INTEGER(HID_T), INTENT(IN) :: space_id ! Dataset's dataspace identifier
    TYPE(hdset_reg_ref_t_f), INTENT(OUT) :: ref ! Dataset region reference
    INTEGER, INTENT(OUT) :: hdferr         ! Error code
!*****
    INTEGER :: namelen                     ! Name length
    INTEGER :: ref_f(REF_REG_BUF_LEN)      ! Local buffer to pass reference

    INTERFACE
       INTEGER FUNCTION h5rcreate_region_c(ref_f, loc_id, name, namelen, space_id) BIND(C,NAME='h5rcreate_region_c')
         IMPORT :: HID_T, REF_REG_BUF_LEN
         IMPORT :: C_CHAR
         IMPLICIT NONE
         INTEGER :: ref_f(REF_REG_BUF_LEN)
         INTEGER(HID_T), INTENT(IN) :: loc_id
         CHARACTER(KIND=C_CHAR), DIMENSION(*), INTENT(IN) :: name
         INTEGER :: namelen
         INTEGER(HID_T), INTENT(IN) :: space_id
       END FUNCTION h5rcreate_region_c
    END INTERFACE

    namelen = LEN(name)
    ref_f = 0
    hdferr = h5rcreate_region_c(ref_f, loc_id, name, namelen, space_id )
    ref%ref = ref_f

  END SUBROUTINE h5rcreate_region_f

!****s* H5R (F03)/h5rcreate_ptr_f
!
! NAME
!  h5rcreate_ptr_f
!
! PURPOSE
!  Creates a reference.
!
! Inputs:
!  loc_id     - location identifier
!  name          - name of the dataset at the specified location
!  ref_type   - type of reference:
!                H5R_OBJECT
!                H5T_STD_REF_DSETREG
! Outputs:
!  ref          - reference created by the function call.
!  hdferr     - returns 0 if successful and -1 if fails.
! OPTIONAL
!  space_id   - dataspace identifier that describes selected region
!
! AUTHOR
!  M. Scot Breitenfeld
!  June 20, 2008
!
! NOTES
!  This is a module procedure for the h5rcreate_f
!  subroutine where the output is a pointer.
!
! Signature:
  SUBROUTINE h5rcreate_ptr_f(loc_id, name, ref_type, ref, hdferr, space_id)
    USE, INTRINSIC :: ISO_C_BINDING
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: loc_id     ! Location identifier
    CHARACTER(LEN=*), INTENT(IN) :: name     ! Name of the dataset at location specified
                                             ! by loc_id identifier
    INTEGER, INTENT(IN) :: ref_type          ! type of reference
    TYPE(C_PTR), INTENT(INOUT) :: ref        ! Reference created by the function call
    INTEGER, INTENT(OUT) :: hdferr           ! Error code
    INTEGER(HID_T), INTENT(IN), OPTIONAL :: space_id ! Dataset's dataspace identifier
!*****
    INTEGER :: namelen                       ! Name length
    INTEGER(HID_T) :: space_id_c

    namelen = LEN(name)
    space_id_c = -1
    IF(PRESENT(space_id)) space_id_c =  space_id
    hdferr = h5rcreate_ptr_c(ref, loc_id, name, namelen, ref_type, space_id_c)

  END SUBROUTINE h5rcreate_ptr_f
!****s* H5R (F03)/h5rdereference_object_f
!
! NAME
!  h5rdereference_object_f
!
! PURPOSE
!  Opens the HDF5 object referenced
!
! Inputs:
!  dset_id  - identifier of the dataset containing
!             reference
!  ref         - reference to open
! Outputs:
!  obj_id   - object_identifier
!  hdferr   - returns 0 if successful and -1 if fails
! AUTHOR
!  Elena Pourmal
!  August 12, 1999
!
! HISTORY
!  Explicit Fortran interfaces were added for
!  called C functions (it is needed for Windows
!  port).  February 28, 2001
!
! NOTES
!  This is a module procedure for the h5rdereference_f subroutine.
!
! Signature:
  SUBROUTINE h5rdereference_object_f(obj_id, ref, ref_obj_id, hdferr)
    USE, INTRINSIC :: ISO_C_BINDING
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: obj_id          ! Dataset identifier
    TYPE(hobj_ref_t_f), INTENT(IN), TARGET :: ref ! Object reference
    INTEGER(HID_T), INTENT(OUT) :: ref_obj_id     ! Object identifier
    INTEGER, INTENT(OUT) :: hdferr                ! Error code
!*****
    TYPE(C_PTR) :: f_ptr

    f_ptr = C_LOC(ref)
    hdferr = h5rdereference_ptr_c(obj_id, 0, f_ptr, ref_obj_id)

  END SUBROUTINE h5rdereference_object_f
!****s* H5R (F03)/h5rdereference_region_f
!
! NAME
!  h5rdereference_region_f
!
! PURPOSE
!  Opens the dataset region
!
! Inputs:
!  dset_id  - identifier of the dataset containing
!             reference to the regions
!  ref         - reference to open
! Outputs:
!  obj_id   - dataspace identifier
!  hdferr   - returns 0 if successful and -1 if fails
!
! AUTHOR
!  Elena Pourmal
!  August 12, 1999
!
! HISTORY
!  Explicit Fortran interfaces were added for
!  called C functions (it is needed for Windows
!  port).  February 28, 2001
!
! NOTES
!  This is a module procedure for the h5rdereference_f subroutine.
!
! Signature:
  SUBROUTINE h5rdereference_region_f(obj_id, ref, ref_obj_id, hdferr)
    USE, INTRINSIC :: ISO_C_BINDING
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: obj_id   ! Dataset identifier
    TYPE(hdset_reg_ref_t_f), INTENT(IN), TARGET :: ref   ! Object reference
    INTEGER(HID_T), INTENT(OUT) :: ref_obj_id  ! Dataspace identifier
    INTEGER, INTENT(OUT) :: hdferr          ! Error code
!*****
    TYPE(C_PTR) :: f_ptr

    f_ptr = C_LOC(ref)
    hdferr = h5rdereference_ptr_c(obj_id, 1, f_ptr, ref_obj_id)

  END SUBROUTINE h5rdereference_region_f

!****s* H5R (F03)/h5rdereference_ptr_f
!
! NAME
!  h5rdereference_ptr_f
!
! PURPOSE
!  Opens the HDF5 object referenced.
!
! Inputs:
!  obj_id     - valid identifier for the file containing the
!               referenced object or any object in that file.
!  ref_type   - the reference type of ref.
!  ref        - Reference to open.
! Outputs:
!  ref_obj_id - identifier of referenced object
!  hdferr     - returns 0 if successful and -1 if fails
!
! AUTHOR
!  M. Scot Breitenfeld
!  June 20, 2008
!
! NOTES
!  This is a module procedure for the h5rdereference_f
!  subroutine using pointers.
!
! Signature:
  SUBROUTINE h5rdereference_ptr_f(obj_id, ref_type, ref, ref_obj_id, hdferr)
    USE, INTRINSIC :: ISO_C_BINDING
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: obj_id  ! Valid identifier for the file containing the
                                          !  referenced object or any object in that file.
    INTEGER, INTENT(IN) :: ref_type       ! The reference type of ref.
    TYPE(C_PTR), INTENT(IN) :: ref        ! Object reference
    INTEGER(HID_T), INTENT(OUT) :: ref_obj_id
                                          ! Identifier of referenced object
    INTEGER, INTENT(OUT) :: hdferr        ! Error code
!*****
    hdferr = h5rdereference_ptr_c(obj_id, ref_type, ref, ref_obj_id)

  END SUBROUTINE h5rdereference_ptr_f
!
!****s* H5R (F03)/h5rget_name_object_f
!
! NAME
!  h5rget_name_object_f
!
! PURPOSE
!  Retrieves a name of a referenced object.
!
! Inputs:
!  loc_id    - Identifier for the file containing the reference or for any object in that file.
!  ref          - An object or dataset region reference.
!
! Outputs:
!  name      - A name associated with the referenced object or dataset region.
!  hdferr    - Returns 0 if successful and -1 if fails.
!
! Optional parameters:
!  size     - The size of the name buffer, returning 0 (zero) if no name is associated
!             with the identifier.
!
! AUTHOR
!  M. Scot Breitenfeld
!  March 28, 2008
!
! Signature:
  SUBROUTINE h5rget_name_object_f(loc_id,  ref, name, hdferr, size)
    USE, INTRINSIC :: ISO_C_BINDING
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: loc_id
    TYPE(hobj_ref_t_f), INTENT(IN), TARGET :: ref
    INTEGER(SIZE_T), OPTIONAL, INTENT(OUT) :: size
    CHARACTER(LEN=*), INTENT(INOUT) :: name
    INTEGER, INTENT(OUT) :: hdferr
!*****

    INTEGER(SIZE_T) :: size_default
    INTEGER(SIZE_T) :: name_len
    TYPE(C_PTR) :: f_ptr

    f_ptr = C_LOC(ref)

    name_len=LEN(name)

    hdferr = h5rget_name_ptr_c(loc_id, 0, f_ptr, name, name_len, size_default)

    IF(PRESENT(size)) size = size_default

  END SUBROUTINE h5rget_name_object_f
!****s* H5R (F03)/h5rget_name_region_f
!
! NAME
!  h5rget_name_region_f
!
! PURPOSE
!  Retrieves a name of a dataset region.
!
! Inputs:
!  loc_id  - Identifier for the file containing the reference or for any object in that file.
!  ref        - An object or dataset region reference.
!
! Outputs:
!  name    - A name associated with the referenced object or dataset region.
!  hdferr  - Returns 0 if successful and -1 if fails.
!
! Optional parameters:
!  size    - The size of the name buffer, returning 0 (zero) if no name is associated with the identifier
!
! AUTHOR
!  M. Scot Breitenfeld
!  March 28, 2008
!
! Signature:
  SUBROUTINE h5rget_name_region_f(loc_id, ref, name, hdferr, size)
    USE, INTRINSIC :: ISO_C_BINDING
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: loc_id
    TYPE(hdset_reg_ref_t_f), INTENT(IN), TARGET :: ref
    INTEGER(SIZE_T), OPTIONAL, INTENT(OUT) :: size
    CHARACTER(LEN=*), INTENT(INOUT) :: name
    INTEGER, INTENT(OUT) :: hdferr
!*****
    INTEGER(SIZE_T) :: size_default
    INTEGER(SIZE_T) :: name_len
    TYPE(C_PTR) :: f_ptr

    f_ptr = C_LOC(ref)

    name_len=LEN(name)

    hdferr = h5rget_name_ptr_c(loc_id, 1, f_ptr, name, name_len, size_default)

    IF(PRESENT(size)) size = size_default

  END SUBROUTINE h5rget_name_region_f

  !****s* H5R (F03)/h5rget_name_ptr_f
  !
  ! NAME
  !  h5rget_name_ptr_f
  !
  ! PURPOSE
  !  Retrieves a name of a referenced object.
  !
  ! Inputs:
  !  loc_id   - Identifier for the file containing the reference or for any object in that file.
  !  ref_type - Type of reference.
  !  ref      - An object or dataset region reference.
  !
  ! Outputs:
  !  name     - A name associated with the referenced object or dataset ptr.
  !  hdferr   - Returns 0 if successful and -1 if fails.
  !
  ! Optional parameters:
  !   size    - The size of the name buffer, returning 0 (zero) if no name is associated
  !             with the identifier
  !
  ! AUTHOR
  !  M. Scot Breitenfeld
  !  March 28, 2008
  !
  ! Signature:
  SUBROUTINE h5rget_name_ptr_f(loc_id, ref_type, ref, name, hdferr, size)
    USE, INTRINSIC :: ISO_C_BINDING
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: loc_id
    INTEGER, INTENT(IN) :: ref_type
    TYPE(C_PTR), INTENT(IN) :: ref
    CHARACTER(LEN=*), INTENT(INOUT) :: name
    INTEGER, INTENT(OUT) :: hdferr
    INTEGER(SIZE_T), OPTIONAL, INTENT(OUT) :: size
!*****
    INTEGER(SIZE_T) :: size_default
    INTEGER(SIZE_T) :: name_len

    name_len=LEN(name)

    hdferr = h5rget_name_ptr_c(loc_id, ref_type, ref, name, name_len, size_default)

    IF(PRESENT(size)) size = size_default

  END SUBROUTINE h5rget_name_ptr_f

  !****s* H5R (F03)/h5rget_obj_type_f
  !
  ! NAME
  !  h5rget_obj_type_f
  !
  ! PURPOSE
  !  Retrieves the type of object that an object reference points to.
  !
  ! Inputs:
  !  loc_id   - Identifier for the dataset containing the reference or
  !             for the group that dataset is in.
  !  ref_type - Type of reference to query.
  !  ref      - Reference to query.
  !
  ! Outputs:
  !  obj_type - Type of referenced object.
  !               H5G_UNKNOWN_F
  !               H5G_GROUP_F
  !               H5G_DATASET_F
  !               H5G_TYPE_F
  !
  !  hdferr   - Returns 0 if successful and -1 if fails.
  !
  ! AUTHOR
  !  M. Scot Breitenfeld
  !  Decemeber 17, 2008
  !
  ! Signature:
  SUBROUTINE h5rget_obj_type_f(loc_id, ref_type, ref, obj_type, hdferr)
    USE, INTRINSIC :: ISO_C_BINDING
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: loc_id
    INTEGER, INTENT(IN) :: ref_type
    TYPE(C_PTR), INTENT(IN) :: ref
    INTEGER, INTENT(OUT) :: obj_type
    INTEGER, INTENT(OUT) :: hdferr
    !*****

    INTERFACE
       INTEGER FUNCTION h5rget_obj_type_c(loc_id, ref_type, ref, obj_type) &
            BIND(C, NAME='h5rget_obj_type_c')
         IMPORT :: C_PTR
         IMPORT :: HID_T
         IMPLICIT NONE
         INTEGER(HID_T), INTENT(IN) :: loc_id
         INTEGER, INTENT(IN) :: ref_type
         TYPE(C_PTR), VALUE :: ref
         INTEGER :: obj_type
       END FUNCTION h5rget_obj_type_c
    END INTERFACE

    hdferr = h5rget_obj_type_c(loc_id, ref_type, ref, obj_type)

  END SUBROUTINE h5rget_obj_type_f

END MODULE H5R