summaryrefslogtreecommitdiffstats
path: root/fortran/src/H5Lff.f90
blob: e38dadef3e0573b18074219be81dd406937e7114 (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
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 
!   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 files COPYING and Copyright.html.  COPYING can be found at the root   *
!   of the source code distribution tree; Copyright.html can be found at the  *
!   root level of an installed copy of the electronic HDF5 document set and   *
!   is linked from the top-level documents page.  It can also be found at     *
!   http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
!   access to either file, you may request a copy from help@hdfgroup.org.     *
! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 
!
!
! This file contains Fortran90 interfaces for H5L functions.
!
MODULE H5L

  USE H5GLOBAL

CONTAINS

!----------------------------------------------------------------------
! Name:		h5lcopy_f 
!
! Purpose: 	Copies a link from one location to another.
!
! Inputs:
!     src_loc_id - Location identifier of the source link
!       src_name - Name of the link to be copied
!    dest_loc_id - Location identifier specifying the destination of the copy
!      dest_name - Name to be assigned to the NEW copy
!         loc_id - Identifier of the file or group containing the object
!           name - Name of the link to delete
! 
! Outputs: 
!         hdferr - error code:
!			Success:  0
!			Failure: -1   
! Optional parameters:
!        lcpl_id - Link creation property list identifier
!        lapl_id - Link access property list identifier
!
! Programmer:	M.S. Breitenfeld
!		February 27, 2008
!
! Modifications:
!
! Comment:		
!----------------------------------------------------------------------
  SUBROUTINE h5lcopy_f(src_loc_id, src_name, dest_loc_id, dest_name, hdferr, &
       lcpl_id, lapl_id)
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: src_loc_id  ! Location identifier of the source link
    CHARACTER(LEN=*), INTENT(IN) :: src_name   ! Name of the link to be copied
    INTEGER(HID_T), INTENT(IN) :: dest_loc_id ! Location identifier specifying the destination of the copy
    CHARACTER(LEN=*), INTENT(IN) :: dest_name ! Name to be assigned to the NEW copy

    INTEGER, INTENT(OUT) :: hdferr        ! Error code: 
                                          ! 0 on success and -1 on failure
    INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lcpl_id ! Link creation property list identifier
    INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lapl_id ! Link access property list identifier
    
    INTEGER(HID_T) :: lcpl_id_default
    INTEGER(HID_T) :: lapl_id_default

    INTEGER(SIZE_T) :: src_namelen
    INTEGER(SIZE_T) :: dest_namelen
    

!  MS FORTRAN needs explicit interface for C functions called here.
!
    INTERFACE
       INTEGER FUNCTION h5lcopy_c(src_loc_id, src_name, src_namelen, dest_loc_id, dest_name, dest_namelen, &
            lcpl_id_default, lapl_id_default)
         USE H5GLOBAL
         !DEC$IF DEFINED(HDF5F90_WINDOWS)
         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5LCOPY_C'::h5lcopy_c
         !DEC$ENDIF
         !DEC$ATTRIBUTES reference :: src_name, dest_name
         INTEGER(HID_T), INTENT(IN) :: src_loc_id
         CHARACTER(LEN=*), INTENT(IN) :: src_name
         INTEGER(HID_T), INTENT(IN) :: dest_loc_id
         CHARACTER(LEN=*), INTENT(IN) :: dest_name
         
         INTEGER(HID_T) :: lcpl_id_default
         INTEGER(HID_T) :: lapl_id_default
         
         INTEGER(SIZE_T) :: src_namelen
         INTEGER(SIZE_T) :: dest_namelen
       END FUNCTION h5lcopy_c
    END INTERFACE

    src_namelen  = LEN(src_name)
    dest_namelen = LEN(dest_name)

    lcpl_id_default = H5P_DEFAULT_F
    IF(PRESENT(lcpl_id)) lcpl_id_default = lcpl_id
    lapl_id_default = H5P_DEFAULT_F
    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id

    hdferr = h5lcopy_c(src_loc_id, src_name, src_namelen, dest_loc_id, dest_name, dest_namelen, &
         lcpl_id_default, lapl_id_default)

  END SUBROUTINE h5lcopy_f

!----------------------------------------------------------------------
! Name:		h5ldelete_f 
!
! Purpose: 	Removes a link from a group.
!
! Inputs:  
!         loc_id   - Identifier of the file or group containing the object
!         name     - Name of the link to delete
! 
! Outputs: 
!		hdferr:		- error code		
!				 	Success:  0
!				 	Failure: -1   
! Optional parameters:
!         lapl_id  - Link access property list identifier
!
! Programmer:	M.S. Breitenfeld
!		January, 2008
!
! Modifications:
!
! Comment:		
!----------------------------------------------------------------------
  SUBROUTINE h5ldelete_f(loc_id, name, hdferr, lapl_id)
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: loc_id  ! Identifier of the file or group containing the object
    CHARACTER(LEN=*), INTENT(IN) :: name  ! Name of the link to delete
    INTEGER, INTENT(OUT) :: hdferr        ! Error code: 
                                          ! 0 on success and -1 on failure
    INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lapl_id ! Link access property list identifier
    INTEGER(HID_T) :: lapl_id_default
    INTEGER(SIZE_T) :: namelen
    

!  MS FORTRAN needs explicit interface for C functions called here.
!
    INTERFACE
       INTEGER FUNCTION h5ldelete_c(loc_id, name, namelen, lapl_id_default)
         USE H5GLOBAL
         !DEC$IF DEFINED(HDF5F90_WINDOWS)
         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5LDELETE_C'::h5ldelete_c
         !DEC$ENDIF
         !DEC$ATTRIBUTES reference :: name
         INTEGER(HID_T), INTENT(IN) :: loc_id
         CHARACTER(LEN=*), INTENT(IN) :: name
         INTEGER(HID_T) :: lapl_id_default
         INTEGER(SIZE_T) :: namelen
       END FUNCTION h5ldelete_c
    END INTERFACE

    namelen = LEN(name)

    lapl_id_default = H5P_DEFAULT_F
    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id

    hdferr = h5ldelete_c(loc_id, name, namelen, lapl_id_default)

  END SUBROUTINE h5ldelete_f 

!----------------------------------------------------------------------
! Name:		H5Lcreate_soft_f 
!
! Purpose: 	Creates a soft link to an object.
!
! Inputs:
!       target_path - Path to the target object, which is not required to exist.
!       link_loc_id - The file or group identifier for the new link.
!       link_name   - The name of the new link.
! 
! Outputs: 
!		hdferr:		- error code		
!				 	Success:  0
!				 	Failure: -1   
! Optional parameters:
!       lcpl_id     - Link creation property list identifier.
!       lapl_id     - Link access property list identifier.
!
! Programmer:	M.S. Breitenfeld
!		February 20, 2008
!
! Modifications:
!
! Comment:		
!----------------------------------------------------------------------
  SUBROUTINE h5lcreate_soft_f(target_path, link_loc_id, link_name, hdferr, lcpl_id, lapl_id)
    IMPLICIT NONE
    CHARACTER(LEN=*), INTENT(IN) :: target_path     ! Path to the target object, which is not required to exist.
    INTEGER(HID_T), INTENT(IN) :: link_loc_id     ! The file or group identifier for the new link.
    CHARACTER(LEN=*), INTENT(IN) :: link_name       ! The name of the new link.
    INTEGER, INTENT(OUT) :: hdferr        ! Error code: 
                                          ! 0 on success and -1 on failure
    INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lcpl_id ! Link creation property list identifier.
    INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lapl_id ! Link access property list identifier.

    INTEGER(HID_T) :: lcpl_id_default 
    INTEGER(HID_T) :: lapl_id_default     
    INTEGER(SIZE_T) :: target_path_len
    INTEGER(SIZE_T) :: link_name_len

!  MS FORTRAN needs explicit interface for C functions called here.
!
    INTERFACE
       INTEGER FUNCTION h5lcreate_soft_c(target_path, target_path_len, &
            link_loc_id, &
            link_name,link_name_len, &
            lcpl_id_default, lapl_id_default )
         USE H5GLOBAL
         !DEC$IF DEFINED(HDF5F90_WINDOWS)
         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5LCREATE_SOFT_C'::h5lcreate_soft_c
         !DEC$ENDIF
         !DEC$ATTRIBUTES reference :: target_path, link_name
         CHARACTER(LEN=*), INTENT(IN) :: target_path
         INTEGER(SIZE_T) :: target_path_len
         INTEGER(HID_T), INTENT(IN) ::   link_loc_id
         CHARACTER(LEN=*), INTENT(IN) :: link_name
         INTEGER(SIZE_T) :: link_name_len
         INTEGER(HID_T) :: lcpl_id_default
         INTEGER(HID_T) :: lapl_id_default
       END FUNCTION h5lcreate_soft_c
    END INTERFACE

    target_path_len = LEN(target_path)
    link_name_len = LEN(link_name)

    lcpl_id_default = H5P_DEFAULT_F
    IF(PRESENT(lcpl_id)) lcpl_id_default = lcpl_id
    lapl_id_default = H5P_DEFAULT_F
    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id

    hdferr = h5lcreate_soft_c(target_path, target_path_len,&
         link_loc_id, &
         link_name, link_name_len, &
         lcpl_id_default, lapl_id_default )

  END SUBROUTINE h5lcreate_soft_f

!----------------------------------------------------------------------
! Name:		H5Lcreate_hard_f 
!
! Purpose: 	Creates a hard link to an object.
!
! Inputs:
!
!    obj_loc_id - The file or group identifier for the target object.
!      obj_name - Name of the target object, which must already exist.
!   link_loc_id - The file or group identifier for the new link.
!     link_name - The name of the new link.
! 
! Outputs: 
!		hdferr:		- error code		
!				 	Success:  0
!				 	Failure: -1   
! Optional parameters:
!       lcpl_id     - Link creation property list identifier.
!       lapl_id     - Link access property list identifier.
!
! Programmer:	M.S. Breitenfeld
!		February 27, 2008
!
! Modifications:
!
! Comment:		
!----------------------------------------------------------------------
  SUBROUTINE h5lcreate_hard_f(obj_loc_id, obj_name, link_loc_id, link_name, hdferr, lcpl_id, lapl_id)
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: obj_loc_id  ! The file or group identifier for the target object.
    CHARACTER(LEN=*), INTENT(IN) :: obj_name  ! Name of the target object, which must already exist.
    INTEGER(HID_T), INTENT(IN) :: link_loc_id ! The file or group identifier for the new link.
    CHARACTER(LEN=*), INTENT(IN) :: link_name ! The name of the new link.

    INTEGER, INTENT(OUT) :: hdferr        ! Error code: 
                                          ! 0 on success and -1 on failure

    INTEGER(HID_T), OPTIONAL, INTENT(IN) ::   lcpl_id         ! Link creation property list identifier.
    INTEGER(HID_T), OPTIONAL, INTENT(IN) ::   lapl_id         ! Link access property list identifier.

    INTEGER(HID_T) :: lcpl_id_default 
    INTEGER(HID_T) :: lapl_id_default
   
    INTEGER(SIZE_T) :: obj_namelen 
    INTEGER(SIZE_T) :: link_namelen

!  MS FORTRAN needs explicit interface for C functions called here.
!
    INTERFACE
       INTEGER FUNCTION h5lcreate_hard_c(obj_loc_id, obj_name, obj_namelen, &
            link_loc_id, link_name, link_namelen, lcpl_id_default, lapl_id_default) 

         USE H5GLOBAL
         !DEC$IF DEFINED(HDF5F90_WINDOWS)
         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5LCREATE_HARD_C'::h5lcreate_hard_c
         !DEC$ENDIF
         !DEC$ATTRIBUTES reference :: obj_name, link_name
         INTEGER(HID_T), INTENT(IN) :: obj_loc_id
         CHARACTER(LEN=*), INTENT(IN) :: obj_name
         INTEGER(HID_T), INTENT(IN) :: link_loc_id
         CHARACTER(LEN=*), INTENT(IN) :: link_name
         INTEGER(SIZE_T) :: obj_namelen 
         INTEGER(SIZE_T) :: link_namelen
         INTEGER(HID_T) :: lcpl_id_default
         INTEGER(HID_T) :: lapl_id_default
       END FUNCTION h5lcreate_hard_c
    END INTERFACE
    obj_namelen = LEN(obj_name) 
    link_namelen = LEN(link_name)

    lcpl_id_default = H5P_DEFAULT_F
    IF(PRESENT(lcpl_id)) lcpl_id_default = lcpl_id
    lapl_id_default = H5P_DEFAULT_F
    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id

    hdferr = h5lcreate_hard_c(obj_loc_id, obj_name, obj_namelen, &
            link_loc_id, link_name, link_namelen, lcpl_id_default, lapl_id_default)

  END SUBROUTINE h5lcreate_hard_f

!----------------------------------------------------------------------
! Name:		H5Lcreate_external_f 
!
! Purpose: 	Creates a soft link to an object in a different file.
!
! Inputs:
!
!    file_name - Name of the file containing the target object. Neither the file nor the target object is 
!                required to exist. May be the file the link is being created in.
!     obj_name - Path within the target file to the target object.
!  link_loc_id - The file or group identifier for the new link.
!    link_name - The name of the new link.
! 
! Outputs: 
!		hdferr:	- error code		
!  		            Success:  0
!		            Failure: -1   
! Optional parameters:
!       lcpl_id     - Link creation property list identifier.
!       lapl_id     - Link access property list identifier.
!
! Programmer:	M.S. Breitenfeld
!		February 27, 2008
!
! Modifications:
!
! Comment:		
!----------------------------------------------------------------------
  SUBROUTINE h5lcreate_external_f(file_name, obj_name, link_loc_id, link_name, hdferr, lcpl_id, lapl_id)
    IMPLICIT NONE
    CHARACTER(LEN=*), INTENT(IN) :: file_name  ! Name of the file containing the target object. Neither 
                                              ! the file nor the target object is required to exist. 
                                              ! May be the file the link is being created in.
    CHARACTER(LEN=*), INTENT(IN) :: obj_name  ! Name of the target object, which must already exist.
    INTEGER(HID_T), INTENT(IN) :: link_loc_id ! The file or group identifier for the new link.
    CHARACTER(LEN=*), INTENT(IN) :: link_name ! The name of the new link.

    INTEGER, INTENT(OUT) :: hdferr        ! Error code: 
                                          ! 0 on success and -1 on failure

    INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lcpl_id ! Link creation property list identifier.
    INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lapl_id ! Link access property list identifier.

    INTEGER(HID_T) :: lcpl_id_default 
    INTEGER(HID_T) :: lapl_id_default
   
    INTEGER(SIZE_T) :: file_namelen
    INTEGER(SIZE_T) :: obj_namelen 
    INTEGER(SIZE_T) :: link_namelen

!  MS FORTRAN needs explicit interface for C functions called here.
!
    INTERFACE
       INTEGER FUNCTION h5lcreate_external_c(file_name, file_namelen, obj_name, obj_namelen, &
            link_loc_id, link_name, link_namelen, lcpl_id_default, lapl_id_default) 

         USE H5GLOBAL
         !DEC$IF DEFINED(HDF5F90_WINDOWS)
         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5LCREATE_EXTERNAL_C'::h5lcreate_external_c
         !DEC$ENDIF
         !DEC$ATTRIBUTES reference :: file_name, obj_name, link_name
         CHARACTER(LEN=*), INTENT(IN) :: file_name
         CHARACTER(LEN=*), INTENT(IN) :: obj_name
         INTEGER(HID_T), INTENT(IN) :: link_loc_id
         CHARACTER(LEN=*), INTENT(IN) :: link_name
         INTEGER(SIZE_T) :: file_namelen 
         INTEGER(SIZE_T) :: obj_namelen 
         INTEGER(SIZE_T) :: link_namelen
         INTEGER(HID_T) :: lcpl_id_default
         INTEGER(HID_T) :: lapl_id_default
       END FUNCTION h5lcreate_external_c
    END INTERFACE
    file_namelen = LEN(file_name) 
    obj_namelen = LEN(obj_name) 
    link_namelen = LEN(link_name)

    lcpl_id_default = H5P_DEFAULT_F
    IF(PRESENT(lcpl_id)) lcpl_id_default = lcpl_id
    lapl_id_default = H5P_DEFAULT_F
    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id

    hdferr = h5lcreate_external_c(file_name, file_namelen, obj_name, obj_namelen, &
            link_loc_id, link_name, link_namelen, lcpl_id_default, lapl_id_default)

  END SUBROUTINE h5lcreate_external_f

!----------------------------------------------------------------------
! Name:		h5ldelete_by_idx_f 
!
! Purpose:  	Removes the nth link in a group.
! Inputs:  	
!		loc_id     - File or group identifier specifying location of subject group
!               group_name - Name of subject group
!               index_field   - Type of index; Possible values are:
!
!                  H5_INDEX_UNKNOWN_F = -1  - Unknown index type
!                  H5_INDEX_NAME_F          - Index on names
!                  H5_INDEX_CRT_ORDER_F     - Index on creation order
!                  H5_INDEX_N_F	            - Number of indices defined
!                             
!               order - Order within field or index; Possible values are:
!
!                  H5_ITER_UNKNOWN_F   - Unknown order
!                  H5_ITER_INC_F       - Increasing order
!                  H5_ITER_DEC_F       - Decreasing order
!                  H5_ITER_NATIVE_F    - No particular order, whatever is fastest
!                  H5_ITER_N_F	       - Number of iteration orders
!
!               n           - Link for which to retrieve information
! Outputs:
!		hdferr:     - error code		
!				 Success:  0
!				 Failure: -1   
! Optional parameters:
!               lapl_id    - Link access property list
!
! Programmer:	M.S. Breitenfeld
!		February 29, 2008
!
! Modifications: N/A 
!
!----------------------------------------------------------------------
  SUBROUTINE h5ldelete_by_idx_f(loc_id, group_name, index_field, order, n, hdferr, lapl_id)
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: loc_id       ! Identifer for object to which attribute is attached
    CHARACTER(LEN=*), INTENT(IN) :: group_name ! Name of object, relative to location, 
                                               !  from which attribute is to be removed
    INTEGER, INTENT(IN) :: index_field         ! Type of index; Possible values are:
                                               !    H5_INDEX_UNKNOWN_F   - Unknown index type
                                               !    H5_INDEX_NAME_F      - Index on names
                                               !    H5_INDEX_CRT_ORDER_F - Index on creation order
                                               !    H5_INDEX_N_F	      - Number of indices defined
    INTEGER, INTENT(IN) :: order               ! Order in which to iterate over index; Possible values are:
                                               !    H5_ITER_UNKNOWN_F  - Unknown order
                                               !    H5_ITER_INC_F      - Increasing order
                                               !    H5_ITER_DEC_F      - Decreasing order
                                               !    H5_ITER_NATIVE_F   - No particular order, whatever is fastest
                                               !    H5_ITER_N_F	    - Number of iteration orders
    INTEGER(HSIZE_T), INTENT(IN) :: n      ! Offset within index 
    INTEGER, INTENT(OUT) :: hdferr         ! Error code:
                                           ! 0 on success and -1 on failure
    INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lapl_id     ! Link access property list

    INTEGER(HID_T) :: lapl_id_default
    INTEGER(SIZE_T) :: group_namelen
    
!  MS FORTRAN needs explicit interface for C functions called here.
!
    INTERFACE
       INTEGER FUNCTION h5ldelete_by_idx_c(loc_id, group_name, group_namelen, index_field, order, n, lapl_id_default)
         USE H5GLOBAL
         !DEC$IF DEFINED(HDF5F90_WINDOWS)
         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5LDELETE_BY_IDX_C'::h5ldelete_by_idx_c
         !DEC$ENDIF
         !DEC$ATTRIBUTES reference :: group_name
         INTEGER(HID_T), INTENT(IN) :: loc_id
         CHARACTER(LEN=*), INTENT(IN) :: group_name
         INTEGER, INTENT(IN) :: index_field
         INTEGER, INTENT(IN) :: order
         INTEGER(HSIZE_T), INTENT(IN) :: n 
         INTEGER(HID_T) :: lapl_id_default
         INTEGER(SIZE_T) :: group_namelen
       END FUNCTION h5ldelete_by_idx_c
    END INTERFACE

    lapl_id_default = H5P_DEFAULT_F
    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id
    
    group_namelen = LEN(group_name)
    hdferr = h5ldelete_by_idx_c(loc_id, group_name, group_namelen, index_field, order, n, lapl_id_default)
    
  END SUBROUTINE h5ldelete_by_idx_f

!----------------------------------------------------------------------
! Name:	        H5Lexists_f	
!
! Purpose:  	Check if a link with a particular name exists in a group.
!		
! Inputs:
!      loc_id - Identifier of the file or group to query.
!        name - Link name to check
!
! Outputs:
!   link_exists  - link exists status (.TRUE.,.FALSE.)
!        hdferr  - error code		
!	              Success:  0
!		      Failure: -1 
! Optional parameters:
!	 lapl_id - Link access property list identifier.		
!
! Programmer:	M. S. Breitenfeld
!		February 29, 2008	
!
! Modifications:  N/A
!
!----------------------------------------------------------------------
  SUBROUTINE h5lexists_f(loc_id, name, link_exists, hdferr, lapl_id)
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: loc_id  ! Identifier of the file or group to query.
    CHARACTER(LEN=*), INTENT(IN) :: name  ! Link name to check.
    LOGICAL, INTENT(OUT) :: link_exists   ! .TRUE. if exists, .FALSE. otherwise
    INTEGER, INTENT(OUT) :: hdferr        ! Error code:
                                          ! 0 on success and -1 on failure
    INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lapl_id 
                                          ! Link access property list identifier.
    INTEGER :: link_exists_c
    INTEGER(HID_T) :: lapl_id_default
    INTEGER(SIZE_T)  :: namelen
!
!  MS FORTRAN needs explicit interface for C functions called here.
!
    INTERFACE
       INTEGER FUNCTION h5lexists_c(loc_id, name, namelen, lapl_id_default, link_exists_c)
         USE H5GLOBAL
         !DEC$IF DEFINED(HDF5F90_WINDOWS)
         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5LEXISTS_C'::h5lexists_c
         !DEC$ENDIF
         !DEC$ATTRIBUTES reference :: name
         INTEGER(HID_T), INTENT(IN) :: loc_id
         CHARACTER(LEN=*), INTENT(IN) :: name
         INTEGER(SIZE_T), INTENT(IN) :: namelen
         INTEGER, INTENT(OUT) :: link_exists_c
         INTEGER(HID_T) :: lapl_id_default
         
       END FUNCTION h5lexists_c
    END INTERFACE

    namelen = LEN(name)

    lapl_id_default = H5P_DEFAULT_F
    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id

    hdferr = h5lexists_c(loc_id, name, namelen, lapl_id_default, link_exists_c)

    link_exists = .FALSE.
    IF(link_exists_c.GT.0) link_exists = .TRUE. 

  END SUBROUTINE h5lexists_f

!----------------------------------------------------------------------
! Name:		h5lget_info_f
!
! Purpose:  	Returns information about a link.
!
! Inputs:  
!		link_loc_id - File or group identifier.
!               link_name - Name of the link for which information is being sought  
!
! Outputs:  NOTE: In C these are contained in the structure H5L_info_t
!
!              cset - indicates the character set used for link’s name. 
!      corder - specifies the link’s creation order position.
!f_corder_valid - indicates whether the value in corder is valid.
!         link_type -  specifies the link class:
!     	                H5L_TYPE_HARD_F      - Hard link
!     	                H5L_TYPE_SOFT_F      - Soft link
!     	                H5L_TYPE_EXTERNAL_F  - External link
!     	                H5L_TYPE_ERROR_F    - Error
!           address - If the link is a hard link, address specifies the file address that the link points to
!          val_size - If the link is a symbolic link, val_size will be the length of the link value, e.g., 
!                     the length of the name of the pointed-to object with a null terminator. 
!            hdferr - error code		
!				 Success:  0
!				 Failure: -1   
! Optional parameters:
!      lapl_id - Link access property list		
!
! Programmer:	M. S. Breitenfeld
!		February 29, 2008	
!
! Modifications:  
!   Changed the link_type names to match those in C (bug 1720) from,
!   H5L_LINK_HARD_F, H5L_LINK_SOFT_F,H5L_LINK_EXTERNAL_F,H5L_LINK_ERROR_F 
!   to
!   H5L_TYPE_HARD_F, H5L_TYPE_SOFT_F,H5L_TYPE_EXTERNAL_F,H5L_TYPE_ERROR_F
!   MSB January 8, 2010.
!
!----------------------------------------------------------------------

  SUBROUTINE h5lget_info_f(link_loc_id, link_name, &
       cset, corder, f_corder_valid, link_type, address, val_size, &
       hdferr, lapl_id)
    IMPLICIT NONE

    INTEGER(HID_T), INTENT(IN) :: link_loc_id ! File or group identifier.
    CHARACTER(LEN=*), INTENT(IN) :: link_name ! Name of the link for which information is being sought
 
! Outputs:  NOTE: In C these are contained in the structure H5L_info_t
    INTEGER, INTENT(OUT) :: cset ! Indicates the character set used for the link’s name. 
    INTEGER, INTENT(OUT) :: corder ! Specifies the link’s creation order position.
    LOGICAL, INTENT(OUT) :: f_corder_valid ! Indicates whether the value in corder is valid.
    INTEGER, INTENT(OUT) :: link_type ! Specifies the link class:
     	                              !  H5L_TYPE_HARD_F      - Hard link
     	                              !  H5L_TYPE_SOFT_F      - Soft link
     	                              !  H5L_TYPE_EXTERNAL_F  - External link
     	                              !  H5L_TYPE_ERROR _F    - Error
    INTEGER(HADDR_T), INTENT(OUT) :: address  ! If the link is a hard link, address specifies the file address that the link points to
    INTEGER(SIZE_T), INTENT(OUT) :: val_size ! If the link is a symbolic link, val_size will be the length of the link value, e.g., 
                                             ! the length of the name of the pointed-to object with a null terminator. 
    INTEGER, INTENT(OUT) :: hdferr       ! Error code:
                                         ! 0 on success and -1 on failure
    INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lapl_id  ! Link access property list

    INTEGER(SIZE_T) :: link_namelen
    INTEGER(HID_T) :: lapl_id_default
    INTEGER :: corder_valid

!  MS FORTRAN needs explicit interface for C functions called here.
!
    INTERFACE
       INTEGER FUNCTION h5lget_info_c(link_loc_id, link_name, link_namelen, &
            cset, corder, corder_valid, link_type, address, val_size, &
            lapl_id_default)
         USE H5GLOBAL
         !DEC$IF DEFINED(HDF5F90_WINDOWS)
         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5LGET_INFO_C'::h5lget_info_c
         !DEC$ENDIF
         !DEC$ATTRIBUTES reference :: link_name
         INTEGER(HID_T), INTENT(IN) :: link_loc_id
         CHARACTER(LEN=*), INTENT(IN) :: link_name
         INTEGER, INTENT(OUT) :: cset 
         INTEGER, INTENT(OUT) :: corder
         INTEGER, INTENT(OUT) :: link_type
         INTEGER(HADDR_T), INTENT(OUT) :: address
         INTEGER(SIZE_T), INTENT(OUT) :: val_size
         INTEGER(HID_T) :: lapl_id_default
         INTEGER(SIZE_T) :: link_namelen
         INTEGER :: corder_valid
       END FUNCTION h5lget_info_c
    END INTERFACE

    link_namelen = LEN(link_name)

    lapl_id_default = H5P_DEFAULT_F
    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id

    hdferr = h5lget_info_c(link_loc_id, link_name, link_namelen, &
         cset, corder, corder_valid, link_type, &
         address, val_size, &
         lapl_id_default)
    
    f_corder_valid =.FALSE.
    IF(corder_valid .EQ. 1) f_corder_valid =.TRUE.

  END SUBROUTINE h5lget_info_f

!----------------------------------------------------------------------
! Name:	   h5lget_info_by_idx_f
!
! Purpose:  Retrieves metadata for a link in a group, according to the order within a field or index.
!		
! Inputs:
!	loc_id - File or group identifier specifying location of subject group
!   group_name - Name of subject group
!  index_field - Index or field which determines the order
!        order - Order within field or index
!            n - Link for which to retrieve information
!
! Outputs:  NOTE: In C these are defined as a structure: H5L_info_t
!    corder_valid   - indicates whether the creation order data is valid for this attribute
!    corder         - is a positive integer containing the creation order of the attribute        
!    cset           - indicates the character set used for the attribute’s name 
!    address        - If the link is a hard link, address specifies the file address that the link points to
!    val_size       - If the link is a symbolic link, val_size will be the length of the link value, e.g., 
!                     the length of the name of the pointed-to object with a null terminator. 
!    hdferr         - error code		
!				 Success:  0
!				 Failure: -1   
! Optional parameters:
!      lapl_id - Link access property list		
!
! Programmer: M.S. Breitenfeld
!	      February 29, 2008	
!
! Modifications:    
!   Changed the link_type names to match those in C (bug 1720) from,
!   H5L_LINK_HARD_F, H5L_LINK_SOFT_F,H5L_LINK_EXTERNAL_F,H5L_LINK_ERROR_F 
!   to
!   H5L_TYPE_HARD_F, H5L_TYPE_SOFT_F,H5L_TYPE_EXTERNAL_F,H5L_TYPE_ERROR_F
!   MSB January 8, 2010.
!
!----------------------------------------------------------------------
  SUBROUTINE h5lget_info_by_idx_f(loc_id, group_name, index_field, order, n, &
       link_type, f_corder_valid, corder, cset, address, val_size, hdferr, lapl_id)
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: loc_id  ! File or group identifier specifying location of subject group  
    CHARACTER(LEN=*), INTENT(IN) :: group_name ! Name of subject group
    INTEGER, INTENT(IN) :: index_field  ! Index or field which determines the order
                                        !    H5_INDEX_UNKNOWN_F   - Unknown index type
                                        !    H5_INDEX_NAME_F      - Index on names
                                        !    H5_INDEX_CRT_ORDER_F - Index on creation order
                                        !    H5_INDEX_N_F	      - Number of indices defined
    INTEGER, INTENT(IN) :: order        ! Order in which to iterate over index; Possible values are:
                                        !    H5_ITER_UNKNOWN_F  - Unknown order
                                        !    H5_ITER_INC_F      - Increasing order
                                        !    H5_ITER_DEC_F      - Decreasing order
                                        !    H5_ITER_NATIVE_F   - No particular order, whatever is fastest
    INTEGER(HSIZE_T), INTENT(IN) :: n   ! Attribute’s position in index
    INTEGER, INTENT(OUT) :: link_type ! Specifies the link class:
     	                              !  H5L_TYPE_HARD_F      - Hard link
     	                              !  H5L_TYPE_SOFT_F      - Soft link
     	                              !  H5L_TYPE_EXTERNAL_F  - External link
     	                              !  H5L_TYPE_ERROR _F    - Error
    LOGICAL, INTENT(OUT) :: f_corder_valid ! Indicates whether the creation order data is valid for this attribute 
    INTEGER, INTENT(OUT) :: corder ! Is a positive integer containing the creation order of the attribute
    INTEGER, INTENT(OUT) :: cset ! Indicates the character set used for the attribute’s name
    INTEGER(HADDR_T), INTENT(OUT) :: address  ! If the link is a hard link, address specifies the file address that the link points to
    INTEGER(SIZE_T), INTENT(OUT) :: val_size  ! If the link is a symbolic link, val_size will be the length of the link value, e.g., 
                                              ! the length of the name of the pointed-to object with a null terminator. 
    INTEGER, INTENT(OUT) :: hdferr       ! Error code:
                                         ! 0 on success and -1 on failure
    INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lapl_id  ! Link access property list
    INTEGER :: corder_valid
    INTEGER(SIZE_T)  :: group_namelen
    INTEGER(HID_T) :: lapl_id_default

!  MS FORTRAN needs explicit interface for C functions called here.
!
    INTERFACE
       INTEGER FUNCTION h5lget_info_by_idx_c(loc_id, group_name, group_namelen, index_field, order, n, &
            link_type, corder_valid, corder, cset, address, val_size, lapl_id_default)
         USE H5GLOBAL
         !DEC$IF DEFINED(HDF5F90_WINDOWS)
         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5LGET_INFO_BY_IDX_C'::h5lget_info_by_idx_c
         !DEC$ENDIF
         !DEC$ATTRIBUTES reference :: group_name
         INTEGER(HID_T), INTENT(IN) :: loc_id
         CHARACTER(LEN=*), INTENT(IN) :: group_name
         INTEGER(SIZE_T)  :: group_namelen
         INTEGER, INTENT(IN) :: index_field
         INTEGER, INTENT(IN) :: order
         INTEGER(HSIZE_T), INTENT(IN) :: n
         INTEGER, INTENT(OUT) :: link_type
         INTEGER :: corder_valid 
         INTEGER, INTENT(OUT) :: corder
         INTEGER, INTENT(OUT) :: cset
         INTEGER(HADDR_T), INTENT(OUT) :: address
         INTEGER(SIZE_T), INTENT(OUT) :: val_size
         INTEGER(HID_T) :: lapl_id_default
       END FUNCTION h5lget_info_by_idx_c
    END INTERFACE

    group_namelen = LEN(group_name)

    lapl_id_default = H5P_DEFAULT_F
    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id

    hdferr = h5lget_info_by_idx_c(loc_id, group_name, group_namelen, index_field, order, n, &
         link_type, corder_valid, corder, cset, address, val_size, lapl_id_default)

    f_corder_valid =.FALSE.
    IF (corder_valid .EQ. 1) f_corder_valid =.TRUE.

  END SUBROUTINE h5lget_info_by_idx_f

!----------------------------------------------------------------------
! Name:	   h5lis_registered_f 
!
! Purpose:  Determines whether a class of user-defined links is registered.
!		
! Inputs:
!      link_cls_id - User-defined link class identifier
!
! Outputs:
!       registered - .TRUE. - if the link class has been registered
!                    .FALSE. - if it is unregistered
!           hdferr - Error code		
!		       Success:  0
!	               Failure: -1   
! Optional parameters:
!                      None		
!
! Programmer: M.S. Breitenfeld
!	      February 29, 2008	
!
! Modifications:  N/A
!
!----------------------------------------------------------------------
  SUBROUTINE h5lis_registered_f(link_cls_id, registered, hdferr)
    IMPLICIT NONE
    INTEGER, INTENT(IN) :: link_cls_id  ! User-defined link class identifier
    LOGICAL, INTENT(OUT) :: registered  ! .TRUE. - if the link class has been registered and
                                        ! .FALSE. - if it is unregistered
    INTEGER, INTENT(OUT) :: hdferr      ! Error code:
                                        ! 0 on success and -1 on failure
!
!  MS FORTRAN needs explicit interface for C functions called here.
!
    INTERFACE
       INTEGER FUNCTION h5lis_registered_c(link_cls_id)
         USE H5GLOBAL
         !DEC$IF DEFINED(HDF5F90_WINDOWS)
         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5LIS_REGISTERED_C'::h5lis_registered_c
         !DEC$ENDIF
         INTEGER, INTENT(IN) :: link_cls_id  ! User-defined link class identifier
       END FUNCTION h5lis_registered_c
    END INTERFACE

    hdferr = h5lis_registered_c(link_cls_id)

    IF(hdferr.GT.0)THEN
       registered = .TRUE.
    ELSE IF(hdferr.EQ.0)THEN
       registered = .FALSE.
    ENDIF
       
  END SUBROUTINE h5lis_registered_f

!----------------------------------------------------------------------
! Name:	   h5lmove_f
!
! Purpose:  Renames a link within an HDF5 file.
!		
! Inputs:
!    src_loc_id  - Original file or group identifier.
!    src_name    - Original link name.
!    dest_loc_id - Destination file or group identifier.
!    dest_name   - NEW link name.
!
! Outputs: 
!         hdferr - Error code		
!		     Success:  0
!	             Failure: -1   
! Optional parameters:
!    lcpl_id  - Link creation property list identifier to be associated WITH the NEW link.
!    lapl_id  - Link access property list identifier to be associated WITH the NEW link.
!
! Programmer: M.S. Breitenfeld
!	      March 3, 2008	
!
! Modifications:  N/A
!
!----------------------------------------------------------------------
  SUBROUTINE h5lmove_f(src_loc_id, src_name, dest_loc_id, dest_name, hdferr, lcpl_id, lapl_id)
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: src_loc_id  ! Original file or group identifier.
    CHARACTER(LEN=*), INTENT(IN) :: src_name  ! Original link name.
    INTEGER(HID_T), INTENT(IN) :: dest_loc_id ! Destination file or group identifier.
    CHARACTER(LEN=*), INTENT(IN) :: dest_name ! NEW link name.
    INTEGER, INTENT(OUT) :: hdferr     ! Error code:
                                              ! 0 on success and -1 on failure
    INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lcpl_id ! Link creation property list identifier 
                                                    ! to be associated WITH the NEW link.
    INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lapl_id ! Link access property list identifier 
                                                    ! to be associated WITH the NEW link.

    INTEGER(SIZE_T) :: src_namelen
    INTEGER(SIZE_T) :: dest_namelen

    INTEGER(HID_T) :: lcpl_id_default 
    INTEGER(HID_T) :: lapl_id_default 
    
!
!  MS FORTRAN needs explicit interface for C functions called here.
!
    INTERFACE
       INTEGER FUNCTION h5lmove_c(src_loc_id, src_name, src_namelen, dest_loc_id, &
            dest_name, dest_namelen, lcpl_id_default, lapl_id_default) 
         USE H5GLOBAL
         !DEC$IF DEFINED(HDF5F90_WINDOWS)
         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5LMOVE_C'::h5lmove_c
         !DEC$ENDIF
         !DEC$ATTRIBUTES reference :: src_name, dest_name
         INTEGER(HID_T), INTENT(IN) :: src_loc_id 
         CHARACTER(LEN=*), INTENT(IN) :: src_name
         INTEGER(SIZE_T) :: src_namelen
         INTEGER(HID_T), INTENT(IN) :: dest_loc_id
         CHARACTER(LEN=*), INTENT(IN) :: dest_name
         INTEGER(SIZE_T) :: dest_namelen
         
         INTEGER(HID_T) :: lcpl_id_default 
         INTEGER(HID_T) :: lapl_id_default 

       END FUNCTION h5lmove_c
    END INTERFACE

    lcpl_id_default = H5P_DEFAULT_F
    IF(PRESENT(lcpl_id)) lcpl_id_default = lcpl_id
    lapl_id_default = H5P_DEFAULT_F
    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id

    src_namelen = LEN(src_name)
    dest_namelen = LEN(dest_name)

    hdferr = H5Lmove_c(src_loc_id, src_name, src_namelen, dest_loc_id, &
         dest_name, dest_namelen, lcpl_id_default, lapl_id_default)

  END SUBROUTINE h5lmove_f

!----------------------------------------------------------------------
! Name:		h5lget_name_by_idx_f
!
! Purpose:      Retrieves name of the nth link in a group, according to the order within a specified field or index.
!
! Inputs:  
!   loc_id      - File or group identifier specifying location of subject group
!   group_name  - Name of subject group
!   index_field - Index or field which determines the order
!   order       - Order within field or index
!   n           - Link for which to retrieve information
!
! Outputs:  
!   name        - Buffer in which link value is returned
!   hdferr      - error code		
!		      Success:  0
!		      Failure: -1
!
! Optional parameters:
!    lapl_id    - List access property list identifier.
!    size       - Maximum number of characters of link value to be returned.
!
! Programmer:	M. S. Breitenfeld
!		March 10, 2008	
!
! Modifications:  N/A
!
!----------------------------------------------------------------------
  SUBROUTINE h5lget_name_by_idx_f(loc_id, group_name, index_field, order, n, &
        name, hdferr, size, lapl_id)
    IMPLICIT NONE
    INTEGER(HID_T), INTENT(IN) :: loc_id       ! File or group identifier specifying location of subject group  
    CHARACTER(LEN=*), INTENT(IN) :: group_name ! Name of subject group
    INTEGER, INTENT(IN) :: index_field  ! Index or field which determines the order
                                        !    H5_INDEX_UNKNOWN_F   - Unknown index type
                                        !    H5_INDEX_NAME_F      - Index on names
                                        !    H5_INDEX_CRT_ORDER_F - Index on creation order
                                        !    H5_INDEX_N_F	      - Number of indices defined
    INTEGER, INTENT(IN) :: order        ! Order in which to iterate over index; Possible values are:
                                        !    H5_ITER_UNKNOWN_F  - Unknown order
                                        !    H5_ITER_INC_F      - Increasing order
                                        !    H5_ITER_DEC_F      - Decreasing order
                                        !    H5_ITER_NATIVE_F   - No particular order, whatever is fastest
    INTEGER(HSIZE_T), INTENT(IN) :: n   ! Attribute’s position in index
    CHARACTER(LEN=*), INTENT(OUT) :: name ! Buffer in which link value is returned
    INTEGER, INTENT(OUT) :: hdferr        ! Error code:
                                          ! 0 on success and -1 on failure
                     
    INTEGER(SIZE_T)  :: group_namelen
    INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lapl_id  ! Link access property list
    INTEGER(HID_T) :: lapl_id_default
    INTEGER(SIZE_T), OPTIONAL, INTENT(OUT) :: size   ! Indicates the size, in the number of characters, of the link
    INTEGER(SIZE_T) :: size_default 


!  MS FORTRAN needs explicit interface for C functions called here.
!
    INTERFACE
       INTEGER FUNCTION h5lget_name_by_idx_c(loc_id, group_name, group_namelen, index_field, order, n, &
             size_default, name, lapl_id_default)
         USE H5GLOBAL
         !DEC$IF DEFINED(HDF5F90_WINDOWS)
         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5LGET_NAME_BY_IDX_C'::h5lget_name_by_idx_c
         !DEC$ENDIF
         !DEC$ATTRIBUTES reference :: group_name, name
         INTEGER(HID_T), INTENT(IN) :: loc_id 
         CHARACTER(LEN=*), INTENT(IN) :: group_name
         INTEGER(SIZE_T)  :: group_namelen
         INTEGER, INTENT(IN) :: index_field
         INTEGER, INTENT(IN) :: order
         INTEGER(HSIZE_T), INTENT(IN) :: n
         INTEGER(SIZE_T) :: size_default
         CHARACTER(LEN=*), INTENT(OUT) :: name
         INTEGER(HID_T) :: lapl_id_default
       END FUNCTION h5lget_name_by_idx_c
    END INTERFACE

    group_namelen = LEN(group_name)

    lapl_id_default = H5P_DEFAULT_F
    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id

    size_default = LEN(name)

    hdferr = h5lget_name_by_idx_c(loc_id, group_name, group_namelen, index_field, order, n, &
             size_default, name, lapl_id_default)

    IF(PRESENT(size)) size = size_default


  END SUBROUTINE h5lget_name_by_idx_f


! HAS PROBLEM WITH void pointer in C

!!$!----------------------------------------------------------------------
!!$! Name:		h5lget_val_by_idx_f
!!$!
!!$! Purpose:      Returns the link value of a link, according to the order of
!!$!               an index.  For symbolic links, this is the path to which the
!!$!               link points, including the null terminator.  For user-defined
!!$!               links, it is the link buffer.
!!$! Inputs:  
!!$!   loc_id      - File or group identifier specifying location of subject group
!!$!   group_name  - Name of subject group
!!$!   index_field - Index or field which determines the order
!!$!   order       - Order within field or index
!!$!   n           - Link for which to retrieve information
!!$!   size       - Maximum number of characters of link value to be returned.
!!$!
!!$! Outputs:  NOTE: In C these are defined as a structure: H5L_info_t
!!$!    corder_valid   - indicates whether the creation order data is valid for this attribute
!!$!    corder         - is a positive integer containing the creation order of the attribute        
!!$!    cset           - indicates the character set used for the attribute’s name          
!!$!    data_size      - indicates the size, in the number of characters, of the attribute	
!!$!    hdferr         - error code		
!!$!				 Success:  0
!!$!				 Failure: -1   
!!$! Optional parameters:
!!$!    lapl_id      - List access property list identifier.
!!$!
!!$! Programmer:	M. S. Breitenfeld
!!$!		March 3, 2008	
!!$!
!!$! Modifications:  N/A
!!$!
!!$!----------------------------------------------------------------------
!!$  SUBROUTINE h5lget_val_by_idx_f(loc_id, group_name, index_field, order, n, &
!!$       f_corder_valid, corder, cset, data_size, hdferr, lapl_id)
!!$    IMPLICIT NONE
!!$    INTEGER(HID_T), INTENT(IN) :: loc_id  ! File or group identifier specifying location of subject group  
!!$    CHARACTER(LEN=*), INTENT(IN) :: group_name ! Name of subject group
!!$    INTEGER, INTENT(IN) :: index_field  ! Index or field which determines the order
!!$                                        !    H5_INDEX_UNKNOWN_F   - Unknown index type
!!$                                        !    H5_INDEX_NAME_F      - Index on names
!!$                                        !    H5_INDEX_CRT_ORDER_F - Index on creation order
!!$                                        !    H5_INDEX_N_F	      - Number of indices defined
!!$    INTEGER, INTENT(IN) :: order        ! Order in which to iterate over index; Possible values are:
!!$                                        !    H5_ITER_UNKNOWN_F  - Unknown order
!!$                                        !    H5_ITER_INC_F      - Increasing order
!!$                                        !    H5_ITER_DEC_F      - Decreasing order
!!$                                        !    H5_ITER_NATIVE_F   - No particular order, whatever is fastest
!!$    INTEGER(HSIZE_T), INTENT(IN) :: n   ! Attribute’s position in index
!!$    LOGICAL, INTENT(OUT) :: f_corder_valid ! Indicates whether the creation order data is valid for this attribute 
!!$    INTEGER, INTENT(OUT) :: corder ! Is a positive integer containing the creation order of the attribute
!!$    INTEGER, INTENT(OUT) :: cset ! Indicates the character set used for the attribute’s name
!!$    INTEGER(HSIZE_T), INTENT(OUT) :: data_size   ! Indicates the size, in the number of characters, of the attribute
!!$    INTEGER, INTENT(OUT) :: hdferr       ! Error code:
!!$                                         ! 0 on success and -1 on failure
!!$    INTEGER :: corder_valid
!!$    INTEGER(SIZE_T)  :: group_namelen
!!$    INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lapl_id  ! Link access property list
!!$    INTEGER(HID_T) :: lapl_id_default
!!$
!!$!  MS FORTRAN needs explicit interface for C functions called here.
!!$!
!!$    INTERFACE
!!$       INTEGER FUNCTION h5lget_val_by_idx_c(loc_id, group_name, group_namelen, index_field, order, n, &
!!$            corder_valid, corder, cset, data_size, lapl_id_default)
!!$         USE H5GLOBAL
!!$         !DEC$IF DEFINED(HDF5F90_WINDOWS)
!!$         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5LGET_VAL_BY_IDX_C'::h5lget_val_by_idx_c
!!$         !DEC$ENDIF
!!$         INTEGER(HID_T), INTENT(IN) :: loc_id 
!!$         CHARACTER(LEN=*), INTENT(IN) :: group_name
!!$         INTEGER(SIZE_T)  :: group_namelen
!!$         INTEGER, INTENT(IN) :: index_field
!!$         INTEGER, INTENT(IN) :: order
!!$         INTEGER(HSIZE_T), INTENT(IN) :: n
!!$         INTEGER :: corder_valid
!!$         INTEGER, INTENT(OUT) :: corder
!!$         INTEGER, INTENT(OUT) :: cset
!!$         INTEGER(HSIZE_T), INTENT(OUT) :: data_size
!!$         INTEGER(HID_T) :: lapl_id_default
!!$       END FUNCTION h5lget_val_by_idx_c
!!$    END INTERFACE
!!$
!!$    group_namelen = LEN(group_name)
!!$
!!$    lapl_id_default = H5P_DEFAULT_F
!!$    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id
!!$
!!$    hdferr = h5lget_info_by_idx_c(loc_id, group_name, group_namelen, index_field, order, n, &
!!$         corder_valid, corder, cset, data_size, lapl_id_default)
!!$
!!$    f_corder_valid =.FALSE.
!!$    IF (corder_valid .EQ. 1) f_corder_valid =.TRUE.
!!$    
!!$  END SUBROUTINE h5lget_val_by_idx_f



!----------------------------------------------------------------------
! Name:		h5lget_val_f
!
! Purpose:  	Returns the value of a symbolic link.
!
! Inputs:  
!   link_loc_id  - File or group identifier.
!   link_name    - Link whose value is to be returned.
!   size         - Maximum number of characters of link value to be returned.
!
! Outputs:  
!   linkval_buff - The buffer to hold the returned link value.
!         hdferr - error code		
!				 Success:  0
!				 Failure: -1   
! Optional parameters:
!    lapl_id      - List access property list identifier.
!
! Programmer:	M. S. Breitenfeld
!		March 3, 2008	
!
! Modifications:  N/A
!
!----------------------------------------------------------------------

!!$  SUBROUTINE h5lget_val_f(link_loc_id, link_name, size, linkval_buff,   &
!!$       hdferr, lapl_id)
!!$    IMPLICIT NONE
!!$    INTEGER(HID_T), INTENT(IN) :: link_loc_id  ! File or group identifier.
!!$    CHARACTER(LEN=*), INTENT(IN) :: link_name  ! Link whose value is to be returned.
!!$    INTEGER(SIZE_T), INTENT(IN) :: size        !  Maximum number of characters of link value to be returned.
!!$    
!!$    CHARACTER(LEN=size), INTENT(OUT) :: linkval_buff ! The buffer to hold the returned link value.
!!$    INTEGER, INTENT(OUT) :: hdferr       ! Error code:
!!$    ! 0 on success and -1 on failure
!!$    INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lapl_id  ! Link access property list
!!$    
!!$    INTEGER :: link_namelen
!!$    INTEGER(HID_T) :: lapl_id_default
!!$    INTEGER :: corder_valid
!!$
!!$    INTEGER :: link_namelen 
!!$    INTEGER(HID_T) :: lapl_id_default 
!!$
!!$!  MS FORTRAN needs explicit interface for C functions called here.
!!$!
!!$    INTERFACE
!!$       INTEGER FUNCTION h5lget_val_c(link_loc_id, link_name, link_namelen, size, linkval_buff, &
!!$            lapl_id_default)
!!$         USE H5GLOBAL
!!$         !DEC$IF DEFINED(HDF5F90_WINDOWS)
!!$         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5LGET_VAL_C'::h5lget_val_c
!!$         !DEC$ENDIF
!!$         INTEGER(HID_T), INTENT(IN) :: link_loc_id  ! File or group identifier.
!!$         CHARACTER(LEN=*), INTENT(IN) :: link_name  ! Link whose value is to be returned.
!!$         INTEGER :: link_namelen 
!!$         INTEGER(SIZE_T), INTENT(IN) :: size        !  Maximum number of characters of link value to be returned.
!!$         
!!$         CHARACTER(LEN=size), INTENT(OUT) :: linkval_buff ! The buffer to hold the returned link value.
!!$
!!$         INTEGER :: link_namelen
!!$         INTEGER(HID_T) :: lapl_id_default
!!$
!!$       END FUNCTION h5lget_val_c
!!$    END INTERFACE
!!$
!!$    link_namelen = LEN(link_name)
!!$
!!$    lapl_id_default = H5P_DEFAULT_F
!!$    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id
!!$
!!$    hdferr = h5lget_val_c(link_loc_id, link_name, link_namelen, size, linkval_buff, &
!!$         lapl_id_default)
!!$
!!$  END SUBROUTINE h5lget_val_f



!----------------------------------------------------------------------
! Name:	    H5Lregistered_f 
!
! Purpose:  Registers user-defined link class or changes behavior of existing class.
!		
! Inputs: NOTE: In C the following represents struct H5L_class_t:
!     version      - Version number of this struct 
!     class_id     - Link class identifier          
!     comment      - Comment for debugging          
!     create_func  - Callback during link creation  
!     move_func    - Callback after moving link     
!     copy_func    - Callback after copying link    
!     trav_func    - The main traversal function    
!     del_func     - Callback for link deletion     
!     query_func   - Callback for queries           
!
! Outputs:
!           hdferr - Error code		
!		       Success:  0
!	               Failure: -1   
! Optional parameters:
!                      None		
!
! Programmer: M.S. Breitenfeld
!	      February 29, 2008	
!
! Modifications:  N/A
!
!----------------------------------------------------------------------
!!$  SUBROUTINE H5Lregistered_f(version, class_id, comment, create_func, &
!!$       move_func, copy_func, trav_func, del_func, query_func, hdferr)
!!$    IMPLICIT NONE
!!$    INTEGER, INTENT(IN) :: version      ! Version number of this struct 
!!$    INTEGER, INTENT(IN) :: class_id     ! Link class identifier          
!!$    CHARACTER(LEN=*), INTENT(IN) :: comment      ! Comment for debugging          
!!$    CHARACTER(LEN=*), INTENT(IN) :: create_func  ! Callback during link creation  
!!$    CHARACTER(LEN=*), INTENT(IN) :: move_func    ! Callback after moving link     
!!$    CHARACTER(LEN=*), INTENT(IN) :: copy_func    ! Callback after copying link    
!!$    CHARACTER(LEN=*), INTENT(IN) :: trav_func    ! The main traversal function    
!!$    CHARACTER(LEN=*), INTENT(IN) :: del_func     ! Callback for link deletion     
!!$    CHARACTER(LEN=*), INTENT(IN) :: query_func   ! Callback for queries
!!$    INTEGER, INTENT(OUT) :: hdferr      ! Error code:
!!$                                        ! 0 on success and -1 on failure
!!$    INTEGER :: comment_len 
!!$    INTEGER :: create_func_len
!!$    INTEGER :: move_func_len 
!!$    INTEGER :: copy_func_len   
!!$    INTEGER :: trav_func_len  
!!$    INTEGER :: del_func_len
!!$    INTEGER :: query_func_len
!!$    
!!$!
!!$!  MS FORTRAN needs explicit interface for C functions called here.
!!$!
!!$    INTERFACE
!!$       INTEGER FUNCTION H5Lregistered_c(version, class_id, comment, &
!!$            create_func, create_func_len, &
!!$            move_func, move_func_len, &
!!$            copy_func, copy_func_len, &
!!$            trav_func, trav_func_len, &
!!$            del_func, del_func_len, &
!!$            query_func,query_func_len)
!!$         USE H5GLOBAL
!!$         !DEC$IF DEFINED(HDF5F90_WINDOWS)
!!$         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5LREGISTERED_C'::H5Lregistered_c
!!$         !DEC$ENDIF
!!$         INTEGER, INTENT(IN) :: version      ! Version number of this struct 
!!$         INTEGER, INTENT(IN) :: class_id     ! Link class identifier          
!!$         CHARACTER(LEN=*), INTENT(IN) :: comment      ! Comment for debugging          
!!$         CHARACTER(LEN=*), INTENT(IN) :: create_func  ! Callback during link creation  
!!$         CHARACTER(LEN=*), INTENT(IN) :: move_func    ! Callback after moving link     
!!$         CHARACTER(LEN=*), INTENT(IN) :: copy_func    ! Callback after copying link    
!!$         CHARACTER(LEN=*), INTENT(IN) :: trav_func    ! The main traversal function    
!!$         CHARACTER(LEN=*), INTENT(IN) :: del_func     ! Callback for link deletion     
!!$         CHARACTER(LEN=*), INTENT(IN) :: query_func   ! Callback for queries
!!$         INTEGER, INTENT(OUT) :: hdferr   ! Error code:
!!$                                          ! 0 on success and -1 on failure
!!$         INTEGER :: comment_len 
!!$         INTEGER :: create_func_len
!!$         INTEGER :: move_func_len 
!!$         INTEGER :: copy_func_len   
!!$         INTEGER :: trav_func_len  
!!$         INTEGER :: del_func_len
!!$         INTEGER :: query_func_len
!!$         
!!$       END FUNCTION H5Lregistered_c
!!$    END INTERFACE
!!$
!!$    comment_len     = LEN(comment)
!!$    create_func_len = LEN(create_func)
!!$    move_func_len   = LEN(move_func)
!!$    copy_func_len   = LEN(copy_func)  
!!$    trav_func_len   = LEN(trav_func)  
!!$    del_func_len    = LEN(del_func)
!!$    query_func_len  = LEN(query_func)
!!$
!!$    hdferr = H5Lregistered_c(version, class_id, comment, &
!!$         create_func, create_func_len, &
!!$         move_func, move_func_len, &
!!$         copy_func, copy_func_len, &
!!$         trav_func, trav_func_len, &
!!$         del_func, del_func_len, &
!!$         query_func, query_func_len)
!!$    
!!$  END SUBROUTINE H5Lregistered_f

END MODULE H5L