File: standard.h

package info (click to toggle)
splint 1%3A3.1.2%2Bdfsg-5
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, sid
  • size: 21,004 kB
  • sloc: ansic: 150,869; yacc: 3,465; sh: 3,034; makefile: 2,157; lex: 412
file content (1270 lines) | stat: -rw-r--r-- 39,260 bytes parent folder | download | duplicates (5)
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
/*
** standard.h --- ISO C99 Standard Library for Splint.
**
** Process with -DSTRICT to get strict library.
*/

/*@-nextlinemacros@*/
/*@+allimponly@*/
/*@+globsimpmodifiesnothing@*/

/*
** errno.h
*/

/*@constant int EDOM;@*/
/*@constant int ERANGE;@*/
/*@constant int EILSEQ;@*/

# ifdef STRICT
/*@checkedstrict@*/ int errno;
# else 
/*@unchecked@*/ int errno;
# endif

/*
** stdbool.h
*/

/*@-likelybool@*/
typedef _Bool bool;
/*@=likelybool@*/
/*@constant bool true@*/
/*@constant bool false@*/
/*@constant int __bool_true_false_are_defined = 1@*/

/*
** types 
*/

typedef /*@integraltype@*/ ptrdiff_t;    
typedef /*@unsignedintegraltype@*/ size_t;
typedef /*@signedintegraltype@*/ ssize_t;
typedef /*@integraltype@*/ wchar_t;

/*
** Added by Amendment 1 to ISO.
*/

typedef /*@integraltype@*/ wint_t;
typedef /*@abstract@*/ mbstate_t;

/*@constant null anytype NULL = 0;@*/

/*
** assert.h
*/

/*@constant _Bool NDEBUG;@*/

# ifdef STRICT
/*@falseexit@*/ void assert (/*@sef@*/ _Bool e) 
  /*@*/ ;
# else
/*@falseexit@*/ void assert (/*@sef@*/ _Bool /*@alt int@*/ e) 
  /*@*/ ;
# endif


/*
** ctype.h
*/

# ifdef STRICT
_Bool isalnum (int c) /*@*/ ;
_Bool isalpha (int c) /*@*/ ;
_Bool iscntrl (int c) /*@*/ ;
_Bool isdigit (int c) /*@*/ ;
_Bool isgraph (int c) /*@*/ ;
_Bool islower (int c) /*@*/ ;
_Bool isprint (int c) /*@*/ ;
_Bool ispunct (int c) /*@*/ ;
_Bool isspace (int c) /*@*/ ;
_Bool isupper (int c) /*@*/ ;
_Bool isxdigit (int c) /*@*/ ;
char tolower (int c) /*@*/ ;
char toupper (int c) /*@*/ ;
# else
/*
** evans 2002-01-03: added alt char (was alt unsigned char)
*/

_Bool /*@alt int@*/ isalnum (int /*@alt char, unsigned char@*/ c) /*@*/ ;
_Bool /*@alt int@*/ isalpha (int /*@alt char, unsigned char@*/ c) /*@*/ ;
_Bool /*@alt int@*/ iscntrl (int /*@alt char, unsigned char@*/ c) /*@*/ ;
_Bool /*@alt int@*/ isdigit (int /*@alt char, unsigned char@*/ c) /*@*/ ;
_Bool /*@alt int@*/ isgraph (int /*@alt char, unsigned char@*/ c) /*@*/ ;
_Bool /*@alt int@*/ islower (int /*@alt char, unsigned char@*/ c) /*@*/ ;
_Bool /*@alt int@*/ isprint (int /*@alt char, unsigned char@*/ c) /*@*/ ;
_Bool /*@alt int@*/ ispunct (int /*@alt char, unsigned char@*/ c) /*@*/ ;
_Bool /*@alt int@*/ isspace (int /*@alt char, unsigned char@*/ c) /*@*/ ;
_Bool /*@alt int@*/ isupper (int /*@alt char, unsigned char@*/ c) /*@*/ ;
_Bool /*@alt int@*/ isxdigit (int /*@alt char, unsigned char@*/ c) /*@*/ ;
char /*@alt int@*/ tolower (int /*@alt char, unsigned char@*/ c) /*@*/ ;
char /*@alt int@*/ toupper (int /*@alt char, unsigned char@*/ c) /*@*/ ;
# endif

/*
** locale.h
*/

struct lconv
{
  char *decimal_point;
  char *thousands_sep;
  char *grouping;
  char *int_curr_symbol;
  char *currency_symbol;
  char *mon_decimal_point;
  char *mon_thousands_sep;
  char *mon_grouping;
  char *positive_sign;
  char *negative_sign;
  char int_frac_digits;
  char frac_digits;
  char p_cs_precedes;
  char p_sep_by_space;
  char n_cs_precedes;
  char n_sep_by_space;
  char p_sign_posn;
  char n_sign_posn;
} ;

/*@constant int LC_ALL;@*/
/*@constant int LC_COLLATE;@*/
/*@constant int LC_CTYPE;@*/
/*@constant int LC_MONETARY;@*/
/*@constant int LC_NUMERIC;@*/
/*@constant int LC_TIME;@*/

/*@observer@*/ /*@null@*/ char *setlocale (int category, /*@null@*/ char *locale) 
   /*@modifies internalState, errno@*/ ;

struct lconv *localeconv (void) /*@*/ ;

/*
** float.h
*/

/*
** Note, these are defined by macros, but NOT necessarily
** constants.  They may be used as lvalues.
*/

/*@unchecked@*/ int    DBL_DIG;
/*@unchecked@*/ double DBL_EPSILON;
/*@unchecked@*/ int    DBL_MANT_DIG;
/*@unchecked@*/ double DBL_MAX;
/*@unchecked@*/ int    DBL_MAX_10_EXP;
/*@unchecked@*/ int    DBL_MAX_EXP;
/*@unchecked@*/ double DBL_MIN;
/*@unchecked@*/ int    DBL_MIN_10_EXP;
/*@unchecked@*/ int    DBL_MIN_EXP;

/*@unchecked@*/ int   FLT_DIG;
/*@unchecked@*/ float FLT_EPSILON;
/*@unchecked@*/ int   FLT_MANT_DIG;
/*@unchecked@*/ float FLT_MAX;
/*@unchecked@*/ int   FLT_MAX_10_EXP;
/*@unchecked@*/ int   FLT_MAX_EXP;
/*@unchecked@*/ float FLT_MIN;
/*@unchecked@*/ int   FLT_MIN_10_EXP;
/*@unchecked@*/ int   FLT_MIN_EXP;
/*@constant            int   FLT_RADIX@*/
/*@unchecked@*/ int   FLT_ROUNDS;

/*@unchecked@*/ int         LDBL_DIG;
/*@unchecked@*/ long double LDBL_EPSILON;
/*@unchecked@*/ int         LDBL_MANT_DIG;
/*@unchecked@*/ long double LDBL_MAX;
/*@unchecked@*/ int         LDBL_MAX_10_EXP;
/*@unchecked@*/ int         LDBL_MAX_EXP;
/*@unchecked@*/ long double LDBL_MIN;
/*@unchecked@*/ int         LDBL_MIN_10_EXP;
/*@unchecked@*/ int         LDBL_MIN_EXP;

/*
** limits.h
*/

/*@constant int CHAR_BIT; @*/
/*@constant char CHAR_MAX; @*/
/*@constant char CHAR_MIN; @*/
/*@constant int INT_MAX; @*/
/*@constant int INT_MIN; @*/
/*@constant long int LONG_MAX; @*/
/*@constant long int LONG_MIN; @*/
/*@constant long int MB_LEN_MAX@*/
/*@constant signed char SCHAR_MAX; @*/
/*@constant signed char SCHAR_MIN; @*/
/*@constant short SHRT_MAX; @*/
/*@constant short SHRT_MIN; @*/
/*@constant unsigned char UCHAR_MAX; @*/
/*@constant unsigned char UCHAR_MIN; @*/
/*@constant unsigned int UINT_MAX; @*/
/*@constant unsigned long ULONG_MAX; @*/
/*@constant unsigned short USHRT_MAX; @*/

/*
** math.h
**
** evans 2002-07-03: updated from ISO C99 (http://www.vmunix.com/~gabor/c/draft.html)
*/

typedef float float_t;
typedef double double_t;

/*@constant double HUGE_VAL; @*/
/*@constant float HUGE_VALF; @*/
/*@constant long double HUGE_VALL; @*/

/*@constant float INFINITY; @*/

/*@constant float NAN; @*/
  /*:warn implementationoptional "NAN is defined if and only if the implementation supports quiet float type NaNs.":*/ ;

/*@constant int FP_INFINITE;@*/
/*@constant int FP_NAN;@*/
/*@constant int FP_NORMAL;@*/
/*@constant int FP_SUBNORMAL;@*/
/*@constant int FP_ZERO;@*/

/*@constant int FP_ILOGB0;@*/
/*@constant int FP_ILOGBNAN;@*/

/*@constant int DECIMAL_DIG;@*/

/* Defined for specs only - this type is any real type */
typedef float /*@alt double, long double@*/ s_real_t;

int fpclassify (/*@sef@*/ s_real_t) /*@*/ ;
int signbit (/*@sef@*/ s_real_t) /*@*/ ;
int isfinite (/*@sef@*/ s_real_t) /*@*/ ;
int isnormal (/*@sef@*/ s_real_t) /*@*/ ;
int isnan (/*@sef@*/ s_real_t) /*@*/ ;
int isinf (/*@sef@*/ s_real_t) /*@*/ ;

/*
** math functions that may have a range error modify errno (implementation defined).
*/

double acos (double x) /*@modifies errno@*/ ;
double asin (double x) /*@modifies errno@*/ ;
double atan (double x) /*@*/ ;
double atan2 (double y, double x) /*@*/ ;

double cos (double x) /*@*/ ;
double sin (double x) /*@*/ ;
double tan (double x) /*@*/ ;

double cosh (double x) /*@modifies errno@*/ ;
double sinh (double x) /*@modifies errno@*/ ;
double tanh (double x) /*@*/ ;

double acosh (double x) /*@modifies errno@*/ ;
double asinh (double x) /*@modifies errno@*/ ;
double atanh (double x) /*@modifies errno@*/ ;

double exp (double x) /*@modifies errno@*/ ;
double frexp (double x, /*@out@*/ int *xp) /*@modifies *xp;@*/ ;
double ldexp (double x, int n) /*@modifies errno@*/ ;

double log (double x) /*@modifies errno@*/ ;
double log10 (double x) /*@modifies errno@*/ ;

double modf (double x, /*@out@*/ double *ip) /*@modifies *ip;@*/ ;

double exp2 (double x) /*@modifies errno@*/ ;
double expm1 (double x) /*@modifies errno@*/ ;
double log1p (double x) /*@modifies errno@*/ ;
double log2 (double x) /*@modifies errno@*/ ;
double logb (double x) /*@modifies errno@*/ ;

double scalbn (double x, int n) /*@modifies errno@*/ ;
double scalbln (double x, long int n) /*@modifies errno@*/ ;
long double scalblnl(long double x, long int n) /*@modifies errno@*/ ;

int ilogb (double x) /*@modifies errno@*/ ;
int ilogbf (float x) /*@modifies errno@*/ ;
int ilogbl (long double x) /*@modifies errno@*/ ;

double fabs (double x) /*@*/ ;
float fabsf (float x) /*@*/ ;
long double fabsl (long double x) /*@*/ ;

double pow (double x, double y) /*@modifies errno@*/ ;
float powf(float x, float y) /*@modifies errno@*/ ;
long double powl(long double x, long double y) /*@modifies errno@*/ ;

double sqrt (double x) /*@modifies errno@*/ ;
float sqrtf(float x) /*@modifies errno@*/ ;
long double sqrtl (long double x) /*@modifies errno@*/ ;

double cbrt (double x) /*@*/ ;
float cbrtf (float x) /*@*/ ;
long double cbrtl (long double x) /*@*/ ;

double hypot (double x, double y) /*@modifies errno@*/ ;
float hypotf (float x, float y) /*@modifies errno@*/ ;
long double hypotl (long double x, long double y) /*@modifies errno@*/ ;

double erf (double x) /*@*/ ;
double erfc (double x) /*@*/ ;
float erff (float x) /*@*/ ;
long double erfl (long double x) /*@*/ ;
float erfcf (float x) /*@*/ ;
long double erfcl (long double x) /*@*/ ;

double gamma (double x) /*@modifies errno@*/ ;
float gammaf(float x) /*@modifies errno@*/ ;
long double gammal (long double x) /*@modifies errno@*/ ;
double lgamma (double x) /*@modifies errno@*/ ;
float lgammaf (float x)  /*@modifies errno@*/ ;
long double lgammal (long double x)  /*@modifies errno@*/ ;

double ceil (double x) /*@*/ ;
float ceilf(float x) /*@*/ ;
long double ceill(long double x) /*@*/ ;

double floor (double x) /*@*/ ;
float floorf (float x) /*@*/ ;
long double floorl (long double x) /*@*/ ;

double nearbyint (double x) /*@*/ ;
float nearbyintf (float x) /*@*/ ; 
long double nearbyintl (long double x) /*@*/ ;

double rint (double x) /*@*/;
float rintf (float x) /*@*/ ;
long double rintl (long double x) /*@*/ ;
long int lrint (double x) /*@modifies errno@*/ ;
long int lrintf (float x) /*@modifies errno@*/ ;
long int lrintl (long double x) /*@modifies errno@*/ ;
long long llrint (double x) /*@modifies errno@*/ ;
long long llrintf(float x)  /*@modifies errno@*/ ;
long long llrintl(long double x) /*@modifies errno@*/ ;

double round (double x) /*@*/ ;
long int lround (double x) /*@modifies errno@*/ ;
long long llround (double x) /*@modifies errno@*/ ;

double trunc (double x) /*@*/ ; 
double fmod (double x, double y) /*@*/ ;
double remainder (double x, double y) /*@*/ ;
double remquo (double x, double y, /*@out@*/ int *quo) /*@modifies *quo@*/ ;
double copysign (double x, double y) /*@*/ ;
double nan (/*@nullterminated@*/ const char *tagp) /*@*/ ;
double nextafter (double x, double y) /*@*/ ;
double nextafterx (double x, long double y) /*@*/ ;

double fdim (double x, double y) /*@modifies errno@*/ ;
double fmax (double x, double y) /*@*/ ;
double fmin (double x, double y) /*@*/ ;
double fma (double x, double y, double z) /*@*/ ;

int isgreater (s_real_t x, s_real_t y) /*@*/ ;
int isgreaterequal (s_real_t x, s_real_t y) /*@*/ ;
int isless (s_real_t x, s_real_t y) /*@*/ ;
int islessequal (s_real_t x, s_real_t y) /*@*/ ;
int islessgreater (s_real_t x, s_real_t y) /*@*/ ;
int isunordered (s_real_t x, s_real_t y) /*@*/ ;

/*
** These functions are optional in iso C.  An implementation does not
** have to provide them.  They are included in comments here, but
** are not required to be part of the standard library.
*/

# ifdef OPTIONAL_MATH

float acosf (float x) /*@modifies errno@*/ ;
long double acosl (long double x) /*@modifies errno@*/ ;
float asinf (float x)	/*@modifies errno@*/ ;
long double asinl (long double x) /*@modifies errno@*/ ;
float atanf (float x)	/*@*/ ;
long double atanl (long double x) /*@*/ ;
float atan2f (float y, float x) /*@*/ ;
long double atan2l (long double y, long double x) /*@*/ ;
float ceilf (float x)	/*@*/ ;
long double ceill (long double x) /*@*/ ;
float cosf (float x) /*@*/ ;
long double cosl (long double x) /*@*/ ;
float coshf (float x)	/*@modifies errno@*/ ;
long double coshl (long double x) /*@modifies errno@*/ ;
float expf (float x) /*@modifies errno@*/ ;
long double expl (long double x) /*@modifies errno@*/;
float fabsf (float x)	/*@*/ ;
long double fabsl (long double x) /*@*/ ;
float floorf (float x) /*@*/ ;
long double floorl (long double x) /*@*/ ;
float fmodf (float x, float y) /*@*/ ;
long double fmodl (long double x, long double y)	/*@*/ ;
float frexpf (float x, /*@out@*/ int *xp) /*@modifies *xp@*/;
long double frexpl (long double x, /*@out@*/ int *xp) /*@modifies *xp@*/;
float ldexpf (float x, int n) /*@modifies errno@*/ ;
long double ldexpl (long double x, int n) /*@modifies errno@*/ ;
float logf (float x) /*@modifies errno@*/ ;
long double logl (long double x) /*@modifies errno@*/ ;
float log10f (float x) /*@modifies errno@*/;
long double log10l (long double x) /*@modifies errno@*/;
float modff (float x, /*@out@*/ float *xp) /*@modifies *xp@*/ ;
long double modfl (long double x, /*@out@*/ long double *xp) /*@modifies *xp@*/ ;
float powf (float x, float y) /*@modifies errno@*/ ;
long double powl (long double x, long double y) /*@modifies errno@*/ ;
float sinf (float x) /*@*/ ;
long double sinl (long double x)	/*@*/ ;
float sinhf (float x) /*@*/ ;
long double sinhl (long double x) /*@*/ ;
float sqrtf (float x) /*@modifies errno@*/ ;
long double sqrtl (long double x) /*@modifies errno@*/ ;
float tanf (float x) /*@*/ ;
long double tanl (long double x)	/*@*/ ;
float tanhf (float x) /*@*/ ;
long double tanhl (long double x) /*@*/ ;

# endif

/*
** setjmp.h
*/

typedef /*@abstract@*/ /*@mutable@*/ void *jmp_buf;

int setjmp (/*@out@*/ jmp_buf env) /*@modifies env;@*/ ;
/*@mayexit@*/ void longjmp (jmp_buf env, int val) /*@*/ ;

/*
** signal.h
*/

/*@constant int SIGABRT; @*/
/*@constant int SIGFPE; @*/
/*@constant int SIGILL; @*/
/*@constant int SIGINT; @*/
/*@constant int SIGSEGV; @*/
/*@constant int SIGTERM; @*/

typedef /*@integraltype@*/ sig_atomic_t;

/*@constant void (*SIG_DFL)(int); @*/
/*@constant void (*SIG_ERR)(int); @*/
/*@constant void (*SIG_IGN)(int); @*/

/*
** signal takes an int, and a function takes int returns void, and
** returns the function (or NULL if unsuccessful).
*/

/*@null@*/ void (*signal (int sig, /*@null@*/ void (*func)(int))) (int) 
   /*@modifies internalState, errno;@*/ ;

/*@mayexit@*/ int raise (int sig) ;

/*
** stdarg.h
*/

typedef /*@abstract@*/ /*@mutable@*/ void *va_list;

void va_start (/*@out@*/ va_list ap, ...) /*@modifies ap;@*/ ;
void va_end (va_list va) /*@modifies va;@*/ ;

void va_copy (/*@out@*/ va_list dest, va_list src) /*modifies dest;@*/ ;

/*
** va_arg is builtin
*/

/*
** stdio.h
*/

typedef /*@abstract@*/ /*@mutable@*/ void *FILE;
typedef /*@abstract@*/ /*@mutable@*/ void *fpos_t;

/*@constant size_t _IOFBF; @*/
/*@constant size_t _IOLBF; @*/
/*@constant size_t _IONBF; @*/

/*@constant size_t BUFSIZ; @*/ /* evans 2002-02-27 change suggested by Walter Briscoe */

/*@constant int EOF; @*/

/*@constant int FOPEN_MAX; @*/
/*@constant int FILENAME_MAX; @*/

/*@constant int L_tmpnam; @*/

/*@constant int SEEK_CUR; @*/
/*@constant int SEEK_END; @*/
/*@constant int SEEK_SET; @*/

/*@constant int TMP_MAX; @*/

# ifdef STRICT
/*@checked@*/ FILE *stderr;
/*@checked@*/ FILE *stdin;
/*@checked@*/ FILE *stdout;
# else
/*@unchecked@*/ FILE *stderr;
/*@unchecked@*/ FILE *stdin;
/*@unchecked@*/ FILE *stdout;
# endif

int remove (char *filename) /*@modifies fileSystem, errno@*/ ;
int rename (char *old, char *new) /*@modifies fileSystem, errno@*/ ;

/*@dependent@*/ /*@null@*/ FILE *tmpfile (void)
   /*@modifies fileSystem, errno@*/ ;

/*@observer@*/ char *
  tmpnam (/*@out@*/ /*@null@*/ /*@returned@*/ char *s) 
  /*@modifies *s, internalState@*/ ;

int fclose (FILE *stream) 
   /*@modifies *stream, errno, fileSystem;@*/ ;

int fflush (/*@null@*/ FILE *stream) 
   /*@modifies *stream, errno, fileSystem;@*/ ;

/*@null@*/ /*@dependent@*/ FILE *fopen (char *filename, char *mode) 
   /*@modifies fileSystem@*/ ;         

/*@dependent@*/ /*@null@*/ FILE *freopen (char *filename, char *mode, FILE *stream) 
  /*@modifies *stream, fileSystem, errno@*/ ;

void setbuf (FILE *stream, /*@null@*/ /*@exposed@*/ /*@out@*/ char *buf) 
     /*@modifies fileSystem, *stream, *buf@*/ 
     /*:errorcode != 0*/ ;
     /*:requires maxSet(buf) >= (BUFSIZ - 1):*/ ;

int setvbuf (FILE *stream, /*@null@*/ /*@exposed@*/ /*@out@*/ char *buf, 
	     int mode, size_t size)
      /*@modifies fileSystem, *stream, *buf@*/
     /*@requires maxSet(buf) >= (size - 1) @*/ ;

# ifdef STRICT
/*@printflike@*/ 
int fprintf (FILE *stream, char *format, ...)
   /*@modifies fileSystem, *stream@*/ ;
# else
/*@printflike@*/ 
int /*@alt void@*/ fprintf (FILE *stream, char *format, ...)
   /*@modifies fileSystem, *stream@*/ ;
# endif

/*@scanflike@*/ 
int fscanf (FILE *stream, char *format, ...)
   /*@modifies fileSystem, *stream, errno@*/ ;

# ifdef STRICT
/*@printflike@*/ 
int printf (char *format, ...) 
   /*@globals stdout@*/
   /*@modifies fileSystem, *stdout@*/ ;
# else
/*@printflike@*/ 
int /*@alt void@*/ printf (char *format, ...) 
   /*@globals stdout@*/
   /*@modifies fileSystem, *stdout@*/ ;
# endif

/*@scanflike@*/
int scanf(char *format, ...)
   /*@globals stdin@*/
   /*@modifies fileSystem, *stdin, errno@*/ ;
   /*drl added errno 09-19-2001 */ ;

# ifdef STRICT
/*@printflike@*/ 
int sprintf (/*@out@*/ char *s, char *format, ...) 
   /*@warn bufferoverflowhigh "Buffer overflow possible with sprintf.  Recommend using snprintf instead"@*/
   /*@modifies *s@*/ ;
# else
/*@printflike@*/ 
int /*@alt void@*/ sprintf (/*@out@*/ char *s, char *format, ...) 
   /*@warn bufferoverflowhigh "Buffer overflow possible with sprintf.  Recommend using snprintf instead"@*/
   /*@modifies *s@*/ ;
# endif

/* evans 2002-07-09: snprintf added to standard.h (from unix.h) */
/*@printflike@*/
int snprintf (/*@out@*/ char * restrict s, size_t n, const char * restrict format, ...)
   /*@modifies s@*/
   /*@requires maxSet(s) >= (n - 1)@*/ ;

/*@scanflike@*/ 
int sscanf (/*@out@*/ char *s, char *format, ...) /*@modifies errno@*/ ;
   /* modifies extra arguments */

int vprintf (const char *format, va_list arg)
   /*@globals stdout@*/
   /*@modifies fileSystem, *stdout@*/ ;

int vfprintf (FILE *stream, char *format, va_list arg)
   /*@modifies fileSystem, *stream, arg, errno@*/ ;

int vsprintf (/*@out@*/ char *str, const char *format, va_list ap)
     /*@warn bufferoverflowhigh "Use vsnprintf instead"@*/
     /*@modifies str@*/ ;

int vsnprintf (/*@out@*/ char *str, size_t size, const char *format, va_list ap)
     /*@requires maxSet(str) >= (size - 1)@*/ /* drl - this was size, size-1 in stdio.h */
     /*@modifies str@*/ ;

int fgetc (FILE *stream) 
   /*@modifies fileSystem, *stream, errno@*/ ;

/*@null@*/ char *
  fgets (/*@returned@*/ /*@out@*/ char *s, int n, FILE *stream)
     /*@modifies fileSystem, *s, *stream, errno@*/
     /*@requires maxSet(s) >= (n -1); @*/
     /*@ensures maxRead(s) <= (n -1) /\ maxRead(s) >= 0; @*/
     ;

int fputc (int /*@alt char@*/ c, FILE *stream)
  /*:errorcode EOF:*/
  /*@modifies fileSystem, *stream, errno@*/ ;

int fputs (char *s, FILE *stream)
  /*@modifies fileSystem, *stream@*/ ;

/* note use of sef --- stream may be evaluated more than once */
int getc (/*@sef@*/ FILE *stream)
  /*@modifies fileSystem, *stream, errno@*/ ;

int getchar (void) /*@globals stdin@*/ /*@modifies fileSystem, *stdin, errno@*/ ;

/*@null@*/ char *gets (/*@out@*/ char *s) 
   /*@warn bufferoverflowhigh
           "Use of gets leads to a buffer overflow vulnerability.  Use fgets instead"@*/
   /*@globals stdin@*/ /*@modifies fileSystem, *s, *stdin, errno@*/ ;

int putc (int /*@alt char@*/ c, /*@sef@*/ FILE *stream)
   /*:errorcode EOF:*/
   /*@modifies fileSystem, *stream, errno;@*/ ;

int putchar (int /*@alt char@*/ c)
   /*:errorcode EOF:*/
   /*@globals stdout@*/ 
   /*@modifies fileSystem, *stdout, errno@*/ ; 

int puts (const char *s)
   /*:errorcode EOF:*/
   /*@globals stdout@*/
   /*@modifies fileSystem, *stdout, errno@*/ ; 

int ungetc (int /*@alt char@*/ c, FILE *stream)
  /*@modifies fileSystem, *stream@*/ ;
      /*drl REMOVED errno 09-19-2001*/

size_t 
  fread (/*@out@*/ void *ptr, size_t size, size_t nobj, FILE *stream)
  /*@modifies fileSystem, *ptr, *stream, errno@*/ 
  /*requires maxSet(ptr) >= (size - 1) @*/
  /*@ensures maxRead(ptr) == (size - 1) @*/ ;

size_t fwrite (void *ptr, size_t size, size_t nobj, FILE *stream)
  /*@modifies fileSystem, *stream, errno@*/ 
  /*@requires maxRead(ptr) >= size @*/ ;

int fgetpos (FILE *stream, /*@out@*/ fpos_t *pos)
   /*@modifies *pos, errno@*/
   /*@requires maxSet(pos) >= 0@*/
   /*@ensures maxRead(pos) >= 0 @*/;

int fseek (FILE *stream, long int offset, int whence)
   /*:errorcode -1:*/
   /*@modifies fileSystem, *stream, errno@*/ ;

int fsetpos (FILE *stream, fpos_t *pos)
   /*@modifies fileSystem, *stream, errno@*/ ;

long int ftell(FILE *stream) 
   /*:errorcode -1:*/ /*@modifies errno*/ ;

void rewind (FILE *stream) /*@modifies *stream@*/ ;
void clearerr (FILE *stream) /*@modifies *stream@*/ ;

int feof (FILE *stream) /*@modifies errno@*/ ;

int ferror (FILE *stream) /*@modifies errno@*/ ;

void perror (/*@null@*/ char *s) 
   /*@globals errno, stderr@*/ /*@modifies fileSystem, *stderr@*/ ; 

/*
** stdlib.h
*/

double atof (char *s) /*@*/ ;
int atoi (char *s) /*@*/ ;
long int atol (char *s) /*@*/ ;

double strtod (char *s, /*@null@*/ /*@out@*/ char **endp)
  /*@modifies *endp, errno@*/ ;

long strtol (char *s, /*@null@*/ /*@out@*/ char **endp, int base)
  /*@modifies *endp, errno@*/ ;

unsigned long 
  strtoul (char *s, /*@null@*/ /*@out@*/ char **endp, int base)
  /*@modifies *endp, errno@*/ ;

/*@constant int RAND_MAX; @*/
int rand (void) /*@modifies internalState@*/ ;
void srand (unsigned int seed) /*@modifies internalState@*/ ;

/*
  drl
  changed 12/29/2000
*/

/*@null@*/ /*@only@*/ void *calloc (size_t nobj, size_t size) /*@*/
     /*@ensures maxSet(result) == (nobj - 1); @*/ ;
/*@null@*/ /*@out@*/ /*@only@*/ void *malloc (size_t size) /*@*/
     /*@ensures maxSet(result) == (size - 1); @*/ ;

/*end drl changed */
     
/* 11 June 1997: removed out on return value */

# if 0
/*@null@*/ /*@only@*/ void *
   realloc (/*@null@*/ /*@only@*/ /*@special@*/ void *p, 
	    size_t size) /*@releases p@*/ /*@modifies *p@*/
     /*@ensures maxSet(result) == (size - 1) @*/;
# endif

/*
** LCLint annotations cannot fully describe realloc.  The semantics we
** want are:
**    realloc returns null: ownership of parameter is not changed
**    realloc returns non-null: ownership of parameter is transferred to return value
**
** Otherwise, storage is in the same state before and after the call.
*/

/*@null@*/ /*@only@*/ void *
   realloc (/*@null@*/ /*@only@*/ /*@out@*/ /*@returned@*/ void *p, size_t size) 
     /*@modifies *p@*/ /*@ensures maxSet(result) >= (size - 1) @*/;

void free (/*@null@*/ /*@out@*/ /*@only@*/ void *p) /*@modifies p@*/ ;

/*@constant int EXIT_FAILURE; @*/ 
/*@constant int EXIT_SUCCESS; @*/ 

/*@exits@*/ void abort (void) /*@*/ ;
/*@exits@*/ void exit (int status) /*@*/ ;
int atexit (void (*func)(void)) /*@modifies internalState@*/ ;

/*@observer@*/ /*@null@*/ char *getenv (char *name) /*@*/ ;

int system (/*@null@*/ char *s) /*@modifies fileSystem@*/ ;

/*@null@*/ /*@dependent@*/ void *
  bsearch (void *key, void *base, 
	   size_t n, size_t size, 
	   int (*compar)(void *, void *)) /*@*/ ;

void qsort (void *base, size_t n, size_t size, 
		   int (*compar)(void *, void *))
   /*@modifies *base, errno@*/ ;

int abs (int n) /*@*/ ;

typedef /*@concrete@*/ struct 
{
  int quot;
  int rem;
} div_t ;

div_t div (int num, int denom) /*@*/ ;

long int labs (long int n) /*@*/ ; 

typedef /*@concrete@*/ struct 
{
  long int quot;
  long int rem;
} ldiv_t ;

ldiv_t ldiv (long num, long denom) /*@*/ ;

/*@constant size_t MB_CUR_MAX; @*/

/*
** wchar_t and wint_t functions added by Amendment 1 to ISO.
*/

/*@constant int WCHAR_MAX@*/
/*@constant int WCHAR_MIN@*/
/*@constant wint_t WEOF@*/

wint_t btowc (int c) /*@*/ ;

wint_t fgetwc (FILE *fp)	/*@modifies fileSystem, *fp*/ ;

/*@null@*/ wchar_t *fgetws (/*@returned@*/ wchar_t *s, int n, FILE *stream)
   /*@modifies fileSystem, *s, *stream@*/;

wint_t fputwc (wchar_t c, FILE *stream)
   /*@modifies fileSystem, *stream@*/;

int fputws (const wchar_t *s, FILE *stream)
   /*@modifies fileSystem, *stream@*/ ;

int fwide (FILE *stream, int mode) /*@*/ ; 
   /* does not modify the stream */

/*@printflike@*/ int fwprintf (FILE *stream, const wchar_t *format, ...)
    /*@modifies *stream, fileSystem@*/ ;

/*@scanflike@*/ int fwscanf (FILE *stream, const wchar_t *format, ...)
	/*@modifies *stream, fileSystem@*/ ;

/* note use of sef --- stream may be evaluated more than once */
wint_t getwc (/*@sef@*/ FILE *stream) /*@modifies fileSystem, *stream@*/ ;

wint_t getwchar (void) /*@modifies fileSystem, *stdin@*/;

size_t mbrlen (const char *s, size_t n, /*@null@*/ mbstate_t *ps) /*@*/ ;

size_t mbrtowc (/*@null@*/ wchar_t *pwc, const char *s, size_t n,
		       /*@null@*/ mbstate_t *ps) 
   /*@modifies *pwc@*/ ;

int mbsinit (/*@null@*/ const mbstate_t *ps) /*@*/ ;

size_t mbsrtowcs (/*@null@*/ wchar_t *dst, const char **src, size_t len,
			 /*@null@*/ mbstate_t *ps) 
   /*@modifies *dst@*/ ;

/* note use of sef --- stream may be evaluated more than once */
wint_t putwc (wchar_t c, /*@sef@*/ FILE *stream)	/*@modifies fileSystem, *stream@*/ ;

wint_t putwchar (wchar_t c) /*@modifies fileSystem, *stdout@*/ ;

/*@printflike@*/ int swprintf (wchar_t *s, size_t n, const wchar_t *format, ...)
   /*@modifies *s@*/ ;

/*@scanflike@*/ int swscanf (const wchar_t *s, const wchar_t *format, ...)
   /*@modifies *stdin@*/ ;

wint_t ungetwc (wint_t c, FILE *stream) /*@modifies fileSystem, *stream@*/ ;

int vfwprintf (FILE *stream, const wchar_t *format, va_list arg)
   /*@modifies fileSystem, *stream@*/ ;

int vswprintf (wchar_t *s, size_t n, const wchar_t *format, va_list arg)
   /*@modifies *s@*/ ;

int vwprintf (const wchar_t *format, va_list arg)
   /*@modifies fileSystem, *stdout@*/ ;

size_t wcrtomb (/*@null@*/ /*@out@*/ char *s, wchar_t wc, /*@null@*/ mbstate_t *ps)
   /*@modifies *s@*/;

void /*@alt wchar_t *@*/
  wcscat (/*@unique@*/ /*@returned@*/ /*@out@*/ wchar_t *s1, const wchar_t *s2)
  /*@modifies *s1@*/ ;

/*@exposed@*/ /*@null@*/ wchar_t *
  wcschr (/*@returned@*/ const wchar_t *s, wchar_t c)
  /*@*/ ;

int wcscmp (const wchar_t *s1, const wchar_t *s2) /*@*/ ;

int wcscoll (const wchar_t *s1, const wchar_t *s2) /*@*/ ;

void /*@alt wchar_t *@*/ 
  wcscpy (/*@unique@*/ /*@out@*/ /*@returned@*/ wchar_t *s1, const wchar_t *s2)
  /*@modifies *s1@*/ ;

size_t wcscspn (const wchar_t *s1, const wchar_t *s2) /*@*/ ;

size_t wcsftime (/*@out@*/ wchar_t *s, size_t maxsize, const wchar_t *format,
			const struct tm *timeptr) 
   /*@modifies *s@*/ ;

size_t wcslen (const wchar_t *s) /*@*/ ;

void /*@alt wchar_t *@*/
  wcsncat (/*@unique@*/ /*@returned@*/ /*@out@*/ wchar_t *s1, const wchar_t *s2,
	   size_t n) 
  /*@modifies *s1@*/ ;

int wcsncmp (const wchar_t *s1, const wchar_t *s2, size_t n) /*@*/ ;

void /*@alt wchar_t *@*/
  wcsncpy (/*@unique@*/ /*@returned@*/ /*@out@*/ wchar_t *s1, const wchar_t *s2,
	   size_t n) 
   /*@modifies *s1@*/ ;

/*@null@*/ wchar_t *
  wcspbrk (/*@returned@*/ const wchar_t *s1, const wchar_t *s2)
  /*@*/ ;

/*@null@*/ wchar_t *
  wcsrchr (/*@returned@*/ const wchar_t *s, wchar_t c)
  /*@*/ ;

size_t
  wcsrtombs (/*@null@*/ char *dst, const wchar_t **src, size_t len,
	     /*@null@*/ mbstate_t *ps) 
  /*@modifies *src@*/ ;

size_t wcsspn (const wchar_t *s1, const wchar_t *s2) /*@*/ ;

/*@null@*/ wchar_t *wcsstr (const wchar_t *s1, const wchar_t *s2) /*@*/ ;

double wcstod (const wchar_t *nptr, /*@null@*/ wchar_t **endptr)
   /*@modifies *endptr@*/ ;

/*@null@*/ wchar_t *
  wcstok (/*@null@*/ wchar_t *s1, const wchar_t *s2, wchar_t **ptr)
  /*@modifies *ptr@*/;

long wcstol (const wchar_t *nptr, /*@null@*/ wchar_t **endptr, int base)
   /*@modifies *endptr@*/;

unsigned long
  wcstoul (const wchar_t *nptr, /*@null@*/ wchar_t **endptr, int base)
  /*@modifies *endptr@*/;

size_t
  wcsxfrm (/*@null@*/ wchar_t *s1, const wchar_t *s2, size_t n)
  /*@modifies *s1@*/;

int wctob (wint_t c) /*@*/;

/*@null@*/ wchar_t *wmemchr (const wchar_t *s, wchar_t c, size_t n) /*@*/ ;

int wmemcmp (const wchar_t *s1, const wchar_t *s2, size_t n) /*@*/ ;

wchar_t *wmemcpy (/*@returned@*/ wchar_t *s1, const wchar_t *s2, size_t n)
   /*@modifies *s1@*/;

wchar_t *wmemmove (/*@returned@*/ wchar_t *s1, const wchar_t *s2, size_t n)
   /*@modifies *s1@*/;

wchar_t *wmemset (/*@returned@*/ wchar_t *s, wchar_t c, size_t n)
   /*@modifies *s@*/;

/*@printflike@*/ int wprintf (const wchar_t *format, ...)
   /*@globals stdout@*/ /*@modifies errno, *stdout@*/;

/*@scanflike@*/ int
  wscanf (const wchar_t *format, ...)
  /*@globals stdin@*/ /*@modifies errno, *stdin@*/;

/*
** wctype.h (added by Amendment 1)
*/

/* Warning: not sure about these (maybe abstract?): */
typedef /*@integraltype@*/ wctype_t;
typedef /*@integraltype@*/ wctrans_t;

# ifdef STRICT
_Bool iswalnum (wint_t c) /*@*/ ;
_Bool iswalpha (wint_t c) /*@*/ ;
_Bool iswcntrl (wint_t c) /*@*/ ;
_Bool iswctype (wint_t c, wctype_t ctg) /*@*/ ;
_Bool iswdigit (wint_t c) /*@*/ ;
_Bool iswgraph (wint_t c) /*@*/ ;
_Bool iswlower (wint_t c) /*@*/ ;
_Bool iswprint (wint_t c) /*@*/ ;
_Bool iswpunct (wint_t c) /*@*/ ;
_Bool iswspace (wint_t c) /*@*/ ;
_Bool iswupper (wint_t c) /*@*/ ;
_Bool iswxdigit (wint_t c) /*@*/ ;

wint_t towctrans (wint_t c, wctrans_t ctg) /*@*/ ;
wint_t towlower (wint_t c) /*@*/ ;
wint_t towupper (wint_t c) /*@*/ ;
# else
_Bool /*@alt int@*/ iswalnum (wint_t c) /*@*/ ;
_Bool /*@alt int@*/ iswalpha (wint_t c) /*@*/ ;
_Bool /*@alt int@*/ iswcntrl (wint_t c) /*@*/ ;
_Bool /*@alt int@*/ iswctype (wint_t c, wctype_t ctg) /*@*/ ;
_Bool /*@alt int@*/ iswdigit (wint_t c) /*@*/ ;
_Bool /*@alt int@*/ iswgraph (wint_t c) /*@*/ ;
_Bool /*@alt int@*/ iswlower (wint_t c) /*@*/ ;
_Bool /*@alt int@*/ iswprint (wint_t c) /*@*/ ;
_Bool /*@alt int@*/ iswpunct (wint_t c) /*@*/ ;
_Bool /*@alt int@*/ iswspace (wint_t c) /*@*/ ;
_Bool /*@alt int@*/ iswupper (wint_t c) /*@*/ ;
_Bool /*@alt int@*/ iswxdigit (wint_t c) /*@*/ ;

wint_t /*@alt int@*/ towctrans (wint_t c, wctrans_t ctg)	/*@*/ ;
wint_t /*@alt int@*/ towlower (wint_t c)	/*@*/ ;
wint_t /*@alt int@*/ towupper (wint_t c)	/*@*/ ;
# endif

wctrans_t wctrans (const char *property)	/*@*/ ;
wctype_t wctype (const char *property) /*@*/ ;

int mblen (char *s, size_t n) /*@*/ ;
int mbtowc (/*@null@*/ wchar_t *pwc, /*@null@*/ char *s, size_t n) 
   /*@modifies *pwc@*/ ;
int wctomb (/*@out@*/ /*@null@*/ char *s, wchar_t wchar) 
   /*@modifies *s@*/ ;
size_t mbstowcs (/*@out@*/ wchar_t *pwcs, char *s, size_t n)
  /*@modifies *pwcs@*/ ;
size_t wcstombs (/*@out@*/ char *s, wchar_t *pwcs, size_t n)
  /*@modifies *s@*/ ;

/*
** string.h
*/
     
void /*@alt void * @*/
  memcpy (/*@unique@*/ /*@returned@*/ /*@out@*/ void *s1, void *s2, size_t n) 
  /*@modifies *s1@*/
     /*@requires maxRead(s2) >= (n - 1) /\ maxSet(s1) >= (n - 1); @*/
     ;

void /*@alt void * @*/
  memmove (/*@returned@*/ /*@out@*/ void *s1, void *s2, size_t n)
  /*@modifies *s1@*/
  /*@requires maxRead(s2) >= (n - 1) /\ maxSet(s1) >= (n - 1); @*/
   ;

  
  /* drl
     modifed  12/29/2000
  */

void /*@alt char * @*/ 
  strcpy (/*@unique@*/ /*@out@*/ /*@returned@*/ char *s1, char *s2) 
     /*@modifies *s1@*/ 
     /*@requires maxSet(s1) >= maxRead(s2) @*/
     /*@ensures maxRead(s1) == maxRead (s2) /\ maxRead(result) == maxRead(s2) /\ maxSet(result) == maxSet(s1); @*/;

void /*@alt char * @*/
  strncpy (/*@unique@*/ /*@out@*/ /*@returned@*/ char *s1, char *s2, size_t n) 
     /*@modifies *s1@*/ 
     /*@requires maxSet(s1) >= ( n - 1 ); @*/
     /*@ensures maxRead (s2) >= maxRead(s1) /\ maxRead (s1) <= n; @*/ ; 

void /*@alt char * @*/
  strcat (/*@unique@*/ /*@returned@*/ char *s1, char *s2) 
     /*@modifies *s1@*/ /*@requires maxSet(s1) >= (maxRead(s1) + maxRead(s2) );@*/
     /*@ensures maxRead(result) == (maxRead(s1) + maxRead(s2) );@*/;

void /*@alt char * @*/
  strncat (/*@unique@*/ /*@returned@*/ char *s1, char *s2, size_t n)
     /*@modifies *s1@*/ 
     /*@requires maxSet(s1) >= ( maxRead(s1) + n); @*/
      /*@ensures maxRead(s1) >= (maxRead(s1) + n); @*/;

     /*drl end*/
     
int memcmp (void *s1, void *s2, size_t n) /*@*/ ;
int strcmp (char *s1, char *s2) /*@*/ ;
int strcoll (char *s1, char *s2) /*@*/ ;
int strncmp (char *s1, char *s2, size_t n) /*@*/ ;
size_t strxfrm (/*@out@*/ /*@null@*/ char *s1, char *s2, size_t n) 
  /*@modifies *s1@*/ ;  /* s1 may be null only if n == 0 */ 

/*@null@*/ void *memchr (void *s, int c, size_t n) /*@*/ ;

# ifdef STRICT
/*@exposed@*/ /*@null@*/ char *
strchr (/*@returned@*/ char *s, char c) /*@*/ /*@ensures maxSet(result) >= 0 /\ maxSet(result) <= maxSet(s) /\ maxRead (result) <= maxRead(s) /\ maxRead(result) >= 0 @*/ ;
# else
/*@exposed@*/ /*@null@*/ char *
  strchr (/*@returned@*/ char *s, int /*@alt char@*/ c) /*@*/ /*@ensures maxSet(result) >= 0 /\ maxSet(result) <= maxSet(s) /\ maxRead (result) <= maxRead(s) /\ maxRead(result) >= 0; @*/ ;
# endif

size_t strcspn (char *s1, char *s2) /*@*/ ;
/*@null@*/ /*@exposed@*/ char *
  strpbrk (/*@returned@*/ char *s, char *t) /*@*/ ;

# ifdef STRICT
/*@null@*/ /*@exposed@*/ char *
  strrchr (/*@returned@*/ char *s, char c) /*@*/  /*@ensures maxSet(result) >= 0 /\ maxSet(result) <= maxSet(s) /\ maxRead (result) <= maxRead(s) /\ maxRead(result) >= 0 @*/ ;
# else
/*@null@*/ /*@exposed@*/ char *
  strrchr (/*@returned@*/ char *s, int /*@alt char@*/ c) /*@*/  /*@ensures maxSet(result) >= 0 /\ maxSet(result) <= maxSet(s) /\ maxRead (result) <= maxRead(s) /\ maxRead(result) >= 0 @*/ ;
# endif

size_t strspn (char *s, char *t) /*@*/ ;

/*@null@*/ /*@exposed@*/  char *
  strstr (/*@returned@*/ const char *s, const char *t) /*@*/
       /*@ensures maxSet(result) >= 0 /\ maxSet(result) <= maxSet(s) /\ maxRead (result) <= maxRead(s) /\ maxRead(result) >= 0 /\ maxRead(result) >= maxRead(t) /\ maxSet(result) >= maxRead(t)@*/ ;

/*@null@*/ /*@exposed@*/ char *
  strtok (/*@returned@*/ /*@null@*/ char *s, char *t)
  /*@modifies *s, internalState, errno@*/ ;

void /*@alt void *@*/ memset (/*@out@*/ /*@returned@*/ void *s, 
				     int c, size_t n)
     /*@modifies *s@*/ /*@requires maxSet(s) >= (n - 1) @*/ /*@ensures maxRead(s) >= (n - 1) @*/ ;

/*@observer@*/ char *strerror (int errnum) /*@*/ ;

/*drl */
size_t strlen (char *s) /*@*/ /*@ensures result == maxRead(s); @*/; 

/*
** time.h
*/

/*@constant int CLOCKS_PER_SEC;@*/

typedef /*@integraltype@*/ clock_t;
typedef /*@integraltype@*/ time_t;

struct tm
  {
    int tm_sec;
    int tm_min;
    int tm_hour;
    int tm_mday;
    int tm_mon;
    int tm_year;
    int tm_wday;
    int tm_yday;
    int tm_isdst;
  } ;

clock_t clock (void) /*@modifies internalState@*/ ;
double difftime (time_t time1, time_t time0) /*@*/ ;
time_t mktime (struct tm *timeptr) /*@*/ ;

time_t time (/*@null@*/ /*@out@*/ time_t *tp)
  /*@modifies *tp@*/ ;

/*@observer@*/ char *asctime (struct tm *timeptr) 
  /*@modifies errno*/ /*@ensures maxSet(result) == 25 /\  maxRead(result) == 25; @*/ ;

/*@observer@*/ char *ctime (time_t *tp) /*@*/
     /*@ensures maxSet(result) == 25 /\  maxRead(result) == 25; @*/;

/* 2003-11-01: remove null annotation: gmtima and localtime cannot return null */
/*@observer@*/ struct tm *gmtime (time_t *tp) /*@*/ ;

/*@observer@*/ struct tm *localtime (time_t *tp) 
  /*@modifies errno@*/ ;

size_t strftime (/*@out@*/ char *s, size_t smax,
			char *fmt, struct tm *timeptr)
  /*@modifies *s@*/ ;

/*
** ISO c99: 7.18 Integer types <stdint.h>
*/

/*
** These types are OPTIONAL.  Provide warnings on use.
*/

typedef /*@integraltype@*/ int8_t
   /*@warn implementationoptional "ISO99 specifies as optional type, implementation need not provide. Consider int_least8_t instead."@*/ ;

typedef /*@integraltype@*/ int16_t
   /*@warn implementationoptional "ISO99 specifies as optional type, implementation need not provide. Consider int_least16_t instead."@*/ ;

typedef /*@integraltype@*/ int32_t
   /*@warn implementationoptional "ISO99 specifies as optional type, implementation need not provide. Consider int_least32_t instead."@*/ ;

typedef /*@integraltype@*/ int64_t
   /*@warn implementationoptional "ISO99 specifies as optional type, implementation need not provide. Consider int_least64_t instead."@*/ ;

typedef /*@unsignedintegraltype@*/ uint8_t
   /*@warn implementationoptional "ISO99 specifies as optional type, implementation need not provide. Consider uint_least8_t instead."@*/ ;

typedef /*@unsignedintegraltype@*/ uint16_t
   /*@warn implementationoptional "ISO99 specifies as optional type, implementation need not provide. Consider uint_least16_t instead."@*/ ;

typedef /*@unsignedintegraltype@*/ uint32_t
   /*@warn implementationoptional "ISO99 specifies as optional type, implementation need not provide. Consider uint_least32_t instead."@*/ ;

typedef /*@unsignedintegraltype@*/ uint64_t
   /*@warn implementationoptional "ISO99 specifies as optional type, implementation need not provide. Consider uint_least64_t instead."@*/ ;

typedef /*@integraltype@*/ int_least8_t;
typedef /*@integraltype@*/ int_least16_t;
typedef /*@integraltype@*/ int_least32_t;
typedef /*@integraltype@*/ int_least64_t;

typedef /*@unsignedintegraltype@*/ uint_least8_t;
typedef /*@unsignedintegraltype@*/ uint_least16_t;
typedef /*@unsignedintegraltype@*/ uint_least32_t;
typedef /*@unsignedintegraltype@*/ uint_least64_t;

typedef /*@integraltype@*/ int_fast8_t;
typedef /*@integraltype@*/ int_fast16_t;
typedef /*@integraltype@*/ int_fast32_t;
typedef /*@integraltype@*/ int_fast64_t;

typedef /*@unsignedintegraltype@*/ uint_fast8_t;
typedef /*@unsignedintegraltype@*/ uint_fast16_t;
typedef /*@unsignedintegraltype@*/ uint_fast32_t;
typedef /*@unsignedintegraltype@*/ uint_fast64_t;

/* Corrections to intptr_t and uintptr_t decparations provided by David Sanderson */

typedef /*@signedintegraltype@*/ intptr_t
   /*@warn implementationoptional "ISO99 specifies as optional type, implementation need not provide."@*/ ;

typedef /*@unsignedintegraltype@*/ uintptr_t
   /*@warn implementationoptional "ISO99 specifies as optional type, implementation need not provide."@*/ ;

typedef /*@signedintegraltype@*/ intmax_t;
typedef /*@unsignedintegraltype@*/ uintmax_t;

/*
** What should the types be here? 
*/ /*#*/

/*@constant int INT8_MIN@*/
/*@constant int INT16_MIN@*/
/*@constant int INT32_MIN@*/
/*@constant int INT64_MIN@*/

/*@constant int INT8_MAX@*/
/*@constant int INT16_MAX@*/
/*@constant int INT32_MAX@*/
/*@constant int INT64_MAX@*/

/*@constant int UINT8_MIN@*/
/*@constant int UINT16_MIN@*/
/*@constant int UINT32_MIN@*/
/*@constant int UINT64_MIN@*/

/*@constant int INT_LEAST8_MIN@*/
/*@constant int INT_LEAST16_MIN@*/
/*@constant int INT_LEAST32_MIN@*/
/*@constant int INT_LEAST64_MIN@*/

/*@constant int INT_LEAST8_MAX@*/
/*@constant int INT_LEAST16_MAX@*/
/*@constant int INT_LEAST32_MAX@*/
/*@constant int INT_LEAST64_MAX@*/

/*@constant int UINT_LEAST8_MAX@*/
/*@constant int UINT_LEAST16_MAX@*/
/*@constant int UINT_LEAST32_MAX@*/
/*@constant int UINT_LEAST64_MAX@*/

/*@constant int INT_FAST8_MIN@*/
/*@constant int INT_FAST16_MIN@*/
/*@constant int INT_FAST32_MIN@*/
/*@constant int INT_FAST64_MIN@*/

/*@constant int INT_FAST8_MAX@*/
/*@constant int INT_FAST16_MAX@*/
/*@constant int INT_FAST32_MAX@*/
/*@constant int INT_FAST64_MAX@*/

/*@constant int UINT_FAST8_MAX@*/
/*@constant int UINT_FAST16_MAX@*/
/*@constant int UINT_FAST32_MAX@*/
/*@constant int UINT_FAST64_MAX@*/

/*@constant size_t INTPTR_MIN@*/
/*@constant size_t INTPTR_MAX@*/