summaryrefslogtreecommitdiffstats
path: root/tests/expr.test
blob: 4cc644ebefa1a62286c53228c619a62d8456e56e (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
# Commands covered: expr
#
# This file contains a collection of tests for one or more of the Tcl
# built-in commands. Sourcing this file into Tcl runs the tests and
# generates output for errors.  No output means no errors were found.
#
# Copyright (c) 1996-1997 Sun Microsystems, Inc.
# Copyright (c) 1998-2000 by Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# RCS: @(#) $Id: expr.test,v 1.28 2004/10/04 13:56:37 dkf Exp $

if {[lsearch [namespace children] ::tcltest] == -1} {
    package require tcltest
    namespace import -force ::tcltest::*
}

testConstraint testmathfunctions [expr {
    ([catch {expr T1()} msg] != 1) || ($msg ne {unknown math function "T1"})
}]

# procedures used below

proc put_hello_char {c} {
    global a
    append a [format %c $c]
    return $c
}
proc hello_world {} {
    global a
    set a ""
    set L1 [set l0 [set h_1 [set q 0]]]
    for {put_hello_char [expr [put_hello_char [expr [set h 7]*10+2]]+29]} {$l0?[put_hello_char $l0]
        :!$h_1} {put_hello_char $ll;expr {$L1==2?[set ll [expr 32+0-0+[set bar 0]]]:0}} {expr {[incr L1]==[expr 1+([string length "abc"]-[string length "abc"])]
        ?[set ll [set l0 [expr 54<<1]]]:$ll==108&&$L1<3?
        [incr ll [expr 1|1<<1]; set ll $ll; set ll $ll; set ll $ll; set ll $ll; set l0 [expr ([string length "abc"]-[string length "abc"])+([string length "abc"]-[string length "abc"])-([string length "abc"]-[string length "abc"])+([string length "abc"]-[string length "abc"])]; set l0; set l0 $l0; set l0; set l0]:$L1==4&&$ll==32?[set ll [expr 19+$h1+([string length "abc"]-[string length "abc"])-([string length "abc"]-[string length "abc"])+([string length "abc"]-[string length "abc"])-([string length "abc"]-[string length "abc"])+[set foo [expr ([string length "abc"]-[string length "abc"])+([string length "abc"]-[string length "abc"])+([string length "abc"]-[string length "abc"])]]]]
        :[set q [expr $q-$h1+([string length "abc"]-[string length "abc"])-([string length "abc"]-[string length "abc"])]]};expr {$L1==5?[incr ll -8; set ll $ll; set ll]:$q&&$h1&&1};expr {$L1==4+2
        ?[incr ll 3]:[expr ([string length "abc"]-[string length "abc"])+1]};expr {$ll==($h<<4)+2+0&&$L1!=6?[incr ll -6]:[set h1 [expr 100+([string length "abc"]-[string length "abc"])-([string length "abc"]-[string length "abc"])]]}
        expr {$L1!=1<<3?[incr q [expr ([string length "abc"]-[string length "abc"])-1]]:[set h_1 [set ll $h1]]}
    }
    set a
}

proc 12days {a b c} {
    global xxx
    expr {1<$a?[expr {$a<3?[12days -79 -13 [string range $c [12days -87 \
	[expr 1-$b] [string range $c [12days -86 0 [string range $c 1 end]] \
	end]] end]]:1};expr {$a<$b?[12days [expr $a+1] $b $c]:3};expr {[12days \
	-94 [expr $a-27] $c]&&$a==2?$b<13?[12days 2 [expr $b+1] "%s %d %d\n"]:9
	:16}]:$a<0?$a<-72?[12days $b $a "@n'+,#'/*\{\}w+/w#cdnr/+,\{\}r/*de\}+,/*\{*+,/w\{%+,/w#q#n+,/#\{l+,/n\{n+,/+#n+,/#;#q#n+,/+k#;*+,/'r :'d*'3,\}\{w+K w'K:'+\}e#';dq#'l q#'+d'K#!/+k#;q#'r\}eKK#\}w'r\}eKK\{nl\]'/#;#q#n')\{)#\}w')\{)\{nl\]'/+#n';d\}rw' i;# )\{nl\]!/n\{n#'; r\{#w'r nc\{nl\]'/#\{l,+'K \{rw' iK\{;\[\{nl\]'/w#q#n'wk nw' iwk\{KK\{nl\]!/w\{%'l##w#' i; :\{nl\]'/*\{q#'ld;r'\}\{nlwb!/*de\}'c ;;\{nl'-\{\}rw\]'/+,\}##'*\}#nc,',#nw\]'/+kd'+e\}+;#'rdq#w! nr'/ ') \}+\}\{rl#'\{n' ')# \}'+\}##(!!/"]
	:$a<-50?[string compare [format %c $b] [string index $c 0]]==0?[append \
	xxx [string index $c 31];scan [string index $c 31] %c x;set x]
	:[12days -65 $b [string range $c 1 end]]:[12days [expr ([string compare \
	[string index $c 0] "/"]==0)+$a] $b [string range $c 1 end]]:0<$a
	?[12days 2 2 "%s"]:[string compare [string index $c 0] "/"]==0||
	[12days 0 [12days -61 [scan [string index $c 0] %c x; set x] \
	"!ek;dc i@bK'(q)-\[w\]*%n+r3#l,\{\}:\nuwloca-O;m .vpbks,fxntdCeghiry"] \
	[string range $c 1 end]]}
}
proc do_twelve_days {} {
    global xxx
    set xxx ""
    12days 1 1 1
    string length $xxx
}

# start of tests

catch {unset a b i x}

test expr-1.1 {TclCompileExprCmd: no expression} {
    list [catch {expr  } msg] $msg
} {1 {wrong # args: should be "expr arg ?arg ...?"}}
test expr-1.2 {TclCompileExprCmd: one expression word} {
    expr -25
} -25
test expr-1.3 {TclCompileExprCmd: two expression words} {
    expr -8.2   -6
} -14.2
test expr-1.4 {TclCompileExprCmd: five expression words} {
    expr 20 - 5 +10 -7
} 18
test expr-1.5 {TclCompileExprCmd: quoted expression word} {
    expr "0005"
} 5
test expr-1.6 {TclCompileExprCmd: quoted expression word} {
    catch {expr "0005"zxy} msg
    set msg
} {extra characters after close-quote}
test expr-1.7 {TclCompileExprCmd: expression word in braces} {
    expr {-0005}
} -5
test expr-1.8 {TclCompileExprCmd: expression word in braces} {
    expr {{-0x1234}}
} -4660
test expr-1.9 {TclCompileExprCmd: expression word in braces} {
    catch {expr {-0005}foo} msg
    set msg
} {extra characters after close-brace}
test expr-1.10 {TclCompileExprCmd: other expression word in braces} {
    expr 4*[llength "6 2"]
} 8
test expr-1.11 {TclCompileExprCmd: expression word terminated by ;} {
    expr 4*[llength "6 2"];
} 8
test expr-1.12 {TclCompileExprCmd: inlined expr (in "catch") inside other catch} {
    set a xxx
    catch {
	# Might not be a number
	set a [expr 10*$a]
    }
} 1
test expr-1.13 {TclCompileExprCmd: second level of substitutions in expr not in braces with single var reference} {
    set a xxx
    set x 27;  set bool {$x};  if $bool {set a foo}
    set a
} foo
test expr-1.14 {TclCompileExprCmd: second level of substitutions in expr with comparison as top-level operator} {
    set a xxx
    set x 2;  set b {$x};  set a [expr $b == 2]
    set a
} 1
test expr-1.15 {TclCompileExprCmd: second level of substitutions in expr with comparison as top-level operator} {
    set a xxx
    set x 2;  set b {$x};  set a [expr $b eq 2]
    set a
} 1

test expr-2.1 {TclCompileExpr: are builtin functions registered?} {
    expr double(5*[llength "6 2"])
} 10.0
test expr-2.2 {TclCompileExpr: error in expr} {
    catch {expr 2***3} msg
    set msg
} {syntax error in expression "2***3": unexpected operator *}
test expr-2.3 {TclCompileExpr: junk after legal expr} {
    catch {expr 7*[llength "a b"]foo} msg
    set msg
} {syntax error in expression "7*2foo": extra tokens at end of expression}
test expr-2.4 {TclCompileExpr: numeric expr string rep == formatted int rep} {
    expr {0001}
} 1

test expr-3.1 {CompileCondExpr: just lor expr} {expr 3||0} 1
test expr-3.2 {CompileCondExpr: error in lor expr} {
    catch {expr x||3} msg
    set msg
} {syntax error in expression "x||3": variable references require preceding $}
test expr-3.3 {CompileCondExpr: test true arm} {expr 3>2?44:66} 44
test expr-3.4 {CompileCondExpr: error compiling true arm} {
    catch {expr 3>2?2***3:66} msg
    set msg
} {syntax error in expression "3>2?2***3:66": unexpected operator *}
test expr-3.5 {CompileCondExpr: test false arm} {expr 2>3?44:66} 66
test expr-3.6 {CompileCondExpr: error compiling false arm} {
    catch {expr 2>3?44:2***3} msg
    set msg
} {syntax error in expression "2>3?44:2***3": unexpected operator *}
test expr-3.7 {CompileCondExpr: long arms & nested cond exprs} {unix nonPortable} {
    puts "Note: doing test expr-3.7 which can take several minutes to run"
    hello_world
} {Hello world}
catch {unset xxx}
test expr-3.8 {CompileCondExpr: long arms & nested cond exprs} {unix nonPortable} {
    puts "Note: doing test expr-3.8 which can take several minutes to run"
    do_twelve_days
} 2358
catch {unset xxx}

test expr-4.1 {CompileLorExpr: just land expr} {expr 1.3&&3.3} 1
test expr-4.2 {CompileLorExpr: error in land expr} {
    catch {expr x&&3} msg
    set msg
} {syntax error in expression "x&&3": variable references require preceding $} 
test expr-4.3 {CompileLorExpr: simple lor exprs} {expr 0||1.0} 1
test expr-4.4 {CompileLorExpr: simple lor exprs} {expr 3.0||0.0} 1
test expr-4.5 {CompileLorExpr: simple lor exprs} {expr 0||0||1} 1
test expr-4.6 {CompileLorExpr: error compiling lor arm} {
    catch {expr 2***3||4.0} msg
    set msg
} {syntax error in expression "2***3||4.0": unexpected operator *}
test expr-4.7 {CompileLorExpr: error compiling lor arm} {
    catch {expr 1.3||2***3} msg
    set msg
} {syntax error in expression "1.3||2***3": unexpected operator *}
test expr-4.8 {CompileLorExpr: error compiling lor arms} {
    list [catch {expr {"a"||"b"}} msg] $msg
} {1 {expected boolean value but got "a"}}
test expr-4.9 {CompileLorExpr: long lor arm} {
    set a "abcdefghijkl"
    set i 7
    expr {[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]] || [string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]] || [string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]] || [string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]&&[string compare [format %c $i] [string index $a $i]]}
} 1

test expr-5.1 {CompileLandExpr: just bitor expr} {expr 7|0x13} 23
test expr-5.2 {CompileLandExpr: error in bitor expr} {
    catch {expr x|3} msg
    set msg
} {syntax error in expression "x|3": variable references require preceding $} 
test expr-5.3 {CompileLandExpr: simple land exprs} {expr 0&&1.0} 0
test expr-5.4 {CompileLandExpr: simple land exprs} {expr 0&&0} 0
test expr-5.5 {CompileLandExpr: simple land exprs} {expr 3.0&&1.2} 1
test expr-5.6 {CompileLandExpr: simple land exprs} {expr 1&&1&&2} 1
test expr-5.7 {CompileLandExpr: error compiling land arm} {
    catch {expr 2***3&&4.0} msg
    set msg
} {syntax error in expression "2***3&&4.0": unexpected operator *}
test expr-5.8 {CompileLandExpr: error compiling land arm} {
    catch {expr 1.3&&2***3} msg
    set msg
} {syntax error in expression "1.3&&2***3": unexpected operator *}
test expr-5.9 {CompileLandExpr: error compiling land arm} {
    list [catch {expr {"a"&&"b"}} msg] $msg
} {1 {expected boolean value but got "a"}}
test expr-5.10 {CompileLandExpr: long land arms} {
    set a "abcdefghijkl"
    set i 7
    expr {[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]] && [string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]] && [string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]] && [string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]^[string compare [format %c 103] [string index $a $i]]^[string compare [format %c 105] [string index $a $i]]}
} 1

test expr-6.1 {CompileBitXorExpr: just bitand expr} {expr 7&0x13} 3
test expr-6.2 {CompileBitXorExpr: error in bitand expr} {
    catch {expr x|3} msg
    set msg
} {syntax error in expression "x|3": variable references require preceding $} 
test expr-6.3 {CompileBitXorExpr: simple bitxor exprs} {expr 7^0x13} 20
test expr-6.4 {CompileBitXorExpr: simple bitxor exprs} {expr 3^0x10} 19
test expr-6.5 {CompileBitXorExpr: simple bitxor exprs} {expr 0^7} 7
test expr-6.6 {CompileBitXorExpr: simple bitxor exprs} {expr -1^7} -8
test expr-6.7 {CompileBitXorExpr: error compiling bitxor arm} {
    catch {expr 2***3|6} msg
    set msg
} {syntax error in expression "2***3|6": unexpected operator *}
test expr-6.8 {CompileBitXorExpr: error compiling bitxor arm} {
    catch {expr 2^x} msg
    set msg
} {syntax error in expression "2^x": variable references require preceding $}
test expr-6.9 {CompileBitXorExpr: runtime error in bitxor arm} {
    list [catch {expr {24.0^3}} msg] $msg
} {1 {can't use floating-point value as operand of "^"}}
test expr-6.10 {CompileBitXorExpr: runtime error in bitxor arm} {
    list [catch {expr {"a"^"b"}} msg] $msg
} {1 {can't use non-numeric string as operand of "^"}}

test expr-7.1 {CompileBitAndExpr: just equality expr} {expr 3==2} 0
test expr-7.2 {CompileBitAndExpr: just equality expr} {expr 2.0==2} 1
test expr-7.3 {CompileBitAndExpr: just equality expr} {expr 3.2!=2.2} 1
test expr-7.4 {CompileBitAndExpr: just equality expr} {expr {"abc" == "abd"}} 0
test expr-7.5 {CompileBitAndExpr: error in equality expr} {
    catch {expr x==3} msg
    set msg
} {syntax error in expression "x==3": variable references require preceding $}
test expr-7.6 {CompileBitAndExpr: simple bitand exprs} {expr 7&0x13} 3
test expr-7.7 {CompileBitAndExpr: simple bitand exprs} {expr 0xf2&0x53} 82
test expr-7.8 {CompileBitAndExpr: simple bitand exprs} {expr 3&6} 2
test expr-7.9 {CompileBitAndExpr: simple bitand exprs} {expr -1&-7} -7
test expr-7.10 {CompileBitAndExpr: error compiling bitand arm} {
    catch {expr 2***3&6} msg
    set msg
} {syntax error in expression "2***3&6": unexpected operator *}
test expr-7.11 {CompileBitAndExpr: error compiling bitand arm} {
    catch {expr 2&x} msg
    set msg
} {syntax error in expression "2&x": variable references require preceding $}
test expr-7.12 {CompileBitAndExpr: runtime error in bitand arm} {
    list [catch {expr {24.0&3}} msg] $msg
} {1 {can't use floating-point value as operand of "&"}}
test expr-7.13 {CompileBitAndExpr: runtime error in bitand arm} {
    list [catch {expr {"a"&"b"}} msg] $msg
} {1 {can't use non-numeric string as operand of "&"}}
test expr-7.14 {CompileBitAndExpr: equality expr} {expr 3eq2} 0
test expr-7.18 {CompileBitAndExpr: equality expr} {expr {"abc" eq "abd"}} 0
test expr-7.20 {CompileBitAndExpr: error in equality expr} {
    catch {expr xne3} msg
    set msg
} {syntax error in expression "xne3": variable references require preceding $} 

test expr-8.1 {CompileEqualityExpr: just relational expr} {expr 3>=2} 1
test expr-8.2 {CompileEqualityExpr: just relational expr} {expr 2<=2.1} 1
test expr-8.3 {CompileEqualityExpr: just relational expr} {expr 3.2>"2.2"} 1
test expr-8.4 {CompileEqualityExpr: just relational expr} {expr {"0y"<"0x12"}} 0
test expr-8.5 {CompileEqualityExpr: error in relational expr} {
    catch {expr x>3} msg
    set msg
} {syntax error in expression "x>3": variable references require preceding $}
test expr-8.6 {CompileEqualityExpr: simple equality exprs} {expr 7==0x13} 0
test expr-8.7 {CompileEqualityExpr: simple equality exprs} {expr -0xf2!=0x53} 1
test expr-8.8 {CompileEqualityExpr: simple equality exprs} {expr {"12398712938788234-1298379" != ""}} 1
test expr-8.9 {CompileEqualityExpr: simple equality exprs} {expr -1!="abc"} 1
test expr-8.10 {CompileEqualityExpr: error compiling equality arm} {
    catch {expr 2***3==6} msg
    set msg
} {syntax error in expression "2***3==6": unexpected operator *}
test expr-8.11 {CompileEqualityExpr: error compiling equality arm} {
    catch {expr 2!=x} msg
    set msg
} {syntax error in expression "2!=x": variable references require preceding $}
test expr-8.12 {CompileBitAndExpr: equality expr} {expr {"a"eq"a"}} 1
test expr-8.13 {CompileBitAndExpr: equality expr} {expr {"\374" eq "ü"}} 1
test expr-8.14 {CompileBitAndExpr: equality expr} {expr 3eq2} 0
test expr-8.15 {CompileBitAndExpr: equality expr} {expr 2.0eq2} 0
test expr-8.16 {CompileBitAndExpr: equality expr} {expr 3.2ne2.2} 1
test expr-8.17 {CompileBitAndExpr: equality expr} {expr 01eq1} 0
test expr-8.18 {CompileBitAndExpr: equality expr} {expr {"abc" eq "abd"}} 0
test expr-8.19 {CompileBitAndExpr: equality expr} {expr {"abc" ne "abd"}} 1
test expr-8.20 {CompileBitAndExpr: error in equality expr} {
    catch {expr x ne3} msg
    set msg
} {syntax error in expression "x ne3": variable references require preceding $} 
test expr-8.21 {CompileBitAndExpr: error in equality expr} {
    # These should be ""ed to avoid the error
    catch {expr a eq b} msg
    set msg
} {syntax error in expression "a eq b": variable references require preceding $}
test expr-8.22 {CompileBitAndExpr: error in equality expr} {
    catch {expr {false eqfalse}} msg
    set msg
} {syntax error in expression "false eqfalse": extra tokens at end of expression}
test expr-8.23 {CompileBitAndExpr: error in equality expr} {
    catch {expr {false nefalse}} msg
    set msg
} {syntax error in expression "false nefalse": extra tokens at end of expression}

test expr-9.1 {CompileRelationalExpr: just shift expr} {expr 3<<2} 12
test expr-9.2 {CompileRelationalExpr: just shift expr} {expr 0xff>>2} 63
test expr-9.3 {CompileRelationalExpr: just shift expr} {expr -1>>2} -1
test expr-9.4 {CompileRelationalExpr: just shift expr} {expr {1<<3}} 8

# The following test is different for 32-bit versus 64-bit
# architectures because LONG_MIN is different

if {0x80000000 > 0} {
    test expr-9.5a {CompileRelationalExpr: shift expr producing LONG_MIN} {nonPortable} {
	expr {1<<63}
    } -9223372036854775808
} else {
    test expr-9.5b {CompileRelationalExpr: shift expr producing LONG_MIN} {nonPortable} {
	expr {1<<31}
    } -2147483648
}
test expr-9.6 {CompileRelationalExpr: error in shift expr} {
    catch {expr x>>3} msg
    set msg
} {syntax error in expression "x>>3": variable references require preceding $}
test expr-9.7 {CompileRelationalExpr: simple relational exprs} {expr 0xff>=+0x3} 1
test expr-9.8 {CompileRelationalExpr: simple relational exprs} {expr -0xf2<0x3} 1
test expr-9.9 {CompileRelationalExpr: error compiling relational arm} {
    catch {expr 2***3>6} msg
    set msg
} {syntax error in expression "2***3>6": unexpected operator *}
test expr-9.10 {CompileRelationalExpr: error compiling relational arm} {
    catch {expr 2<x} msg
    set msg
} {syntax error in expression "2<x": variable references require preceding $}

test expr-10.1 {CompileShiftExpr: just add expr} {expr 4+-2} 2
test expr-10.2 {CompileShiftExpr: just add expr} {expr 0xff-2} 253
test expr-10.3 {CompileShiftExpr: just add expr} {expr -1--2} 1
test expr-10.4 {CompileShiftExpr: just add expr} {expr 1-0123} -82
test expr-10.5 {CompileShiftExpr: error in add expr} {
    catch {expr x+3} msg
    set msg
} {syntax error in expression "x+3": variable references require preceding $}
test expr-10.6 {CompileShiftExpr: simple shift exprs} {expr 0xff>>0x3} 31
test expr-10.7 {CompileShiftExpr: simple shift exprs} {expr -0xf2<<0x3} -1936
test expr-10.8 {CompileShiftExpr: error compiling shift arm} {
    catch {expr 2***3>>6} msg
    set msg
} {syntax error in expression "2***3>>6": unexpected operator *}
test expr-10.9 {CompileShiftExpr: error compiling shift arm} {
    catch {expr 2<<x} msg
    set msg
} {syntax error in expression "2<<x": variable references require preceding $}
test expr-10.10 {CompileShiftExpr: runtime error} {
    list [catch {expr {24.0>>43}} msg] $msg
} {1 {can't use floating-point value as operand of ">>"}}
test expr-10.11 {CompileShiftExpr: runtime error} {
    list [catch {expr {"a"<<"b"}} msg] $msg
} {1 {can't use non-numeric string as operand of "<<"}}

test expr-11.1 {CompileAddExpr: just multiply expr} {expr 4*-2} -8
test expr-11.2 {CompileAddExpr: just multiply expr} {expr 0xff%2} 1
test expr-11.3 {CompileAddExpr: just multiply expr} {expr -1/2} -1
test expr-11.4 {CompileAddExpr: just multiply expr} {expr 7891%0123} 6
test expr-11.5 {CompileAddExpr: error in multiply expr} {
    catch {expr x*3} msg
    set msg
} {syntax error in expression "x*3": variable references require preceding $}
test expr-11.6 {CompileAddExpr: simple add exprs} {expr 0xff++0x3} 258
test expr-11.7 {CompileAddExpr: simple add exprs} {expr -0xf2--0x3} -239
test expr-11.8 {CompileAddExpr: error compiling add arm} {
    catch {expr 2***3+6} msg
    set msg
} {syntax error in expression "2***3+6": unexpected operator *}
test expr-11.9 {CompileAddExpr: error compiling add arm} {
    catch {expr 2-x} msg
    set msg
} {syntax error in expression "2-x": variable references require preceding $}
test expr-11.10 {CompileAddExpr: runtime error} {
    list [catch {expr {24.0+"xx"}} msg] $msg
} {1 {can't use non-numeric string as operand of "+"}}
test expr-11.11 {CompileAddExpr: runtime error} {
    list [catch {expr {"a"-"b"}} msg] $msg
} {1 {can't use non-numeric string as operand of "-"}}
test expr-11.12 {CompileAddExpr: runtime error} {
    list [catch {expr {3/0}} msg] $msg
} {1 {divide by zero}}
test expr-11.13 {CompileAddExpr: runtime error} {
    list [catch {expr {2.3/0.0}} msg] $msg
} {1 {divide by zero}}

test expr-12.1 {CompileMultiplyExpr: just unary expr} {expr ~4} -5
test expr-12.2 {CompileMultiplyExpr: just unary expr} {expr --5} 5
test expr-12.3 {CompileMultiplyExpr: just unary expr} {expr !27} 0
test expr-12.4 {CompileMultiplyExpr: just unary expr} {expr ~0xff00ff} -16711936
test expr-12.5 {CompileMultiplyExpr: error in unary expr} {
    catch {expr ~x} msg
    set msg
} {syntax error in expression "~x": variable references require preceding $}
test expr-12.6 {CompileMultiplyExpr: simple multiply exprs} {expr 0xff*0x3} 765
test expr-12.7 {CompileMultiplyExpr: simple multiply exprs} {expr -0xf2%-0x3} -2
test expr-12.8 {CompileMultiplyExpr: error compiling multiply arm} {
    catch {expr 2*3%%6} msg
    set msg
} {syntax error in expression "2*3%%6": unexpected operator %}
test expr-12.9 {CompileMultiplyExpr: error compiling multiply arm} {
    catch {expr 2*x} msg
    set msg
} {syntax error in expression "2*x": variable references require preceding $}
test expr-12.10 {CompileMultiplyExpr: runtime error} {
    list [catch {expr {24.0*"xx"}} msg] $msg
} {1 {can't use non-numeric string as operand of "*"}}
test expr-12.11 {CompileMultiplyExpr: runtime error} {
    list [catch {expr {"a"/"b"}} msg] $msg
} {1 {can't use non-numeric string as operand of "/"}}

test expr-13.1 {CompileUnaryExpr: unary exprs} {expr -0xff} -255
test expr-13.2 {CompileUnaryExpr: unary exprs} {expr +000123} 83
test expr-13.3 {CompileUnaryExpr: unary exprs} {expr +--++36} 36
test expr-13.4 {CompileUnaryExpr: unary exprs} {expr !2} 0
test expr-13.5 {CompileUnaryExpr: unary exprs} {expr +--+-62.0} -62.0
test expr-13.6 {CompileUnaryExpr: unary exprs} {expr !0.0} 1
test expr-13.7 {CompileUnaryExpr: unary exprs} {expr !0xef} 0
test expr-13.8 {CompileUnaryExpr: error compiling unary expr} {
    catch {expr ~x} msg
    set msg
} {syntax error in expression "~x": variable references require preceding $}
test expr-13.9 {CompileUnaryExpr: error compiling unary expr} {
    catch {expr !1.x} msg
    set msg
} {syntax error in expression "!1.x": extra tokens at end of expression}
test expr-13.10 {CompileUnaryExpr: runtime error} {
    list [catch {expr {~"xx"}} msg] $msg
} {1 {can't use non-numeric string as operand of "~"}}
test expr-13.11 {CompileUnaryExpr: runtime error} {
    list [catch {expr ~4.0} msg] $msg
} {1 {can't use floating-point value as operand of "~"}}
test expr-13.12 {CompileUnaryExpr: just primary expr} {expr 0x123} 291
test expr-13.13 {CompileUnaryExpr: just primary expr} {
    set a 27
    expr $a
} 27
test expr-13.14 {CompileUnaryExpr: just primary expr} {
    expr double(27)
} 27.0
test expr-13.15 {CompileUnaryExpr: just primary expr} {expr "123"} 123
test expr-13.16 {CompileUnaryExpr: error in primary expr} {
    catch {expr [set]} msg
    set msg
} {wrong # args: should be "set varName ?newValue?"}
test expr-13.17 {CompileUnaryExpr: negating non-numeric boolean literals} {
    set a1 yes; set a0 no; set b1 true; set b0 false
    list [expr {!$a1}] [expr {!$a0}] [expr {!$b1}] [expr {!$b0}]
} {0 1 0 1}

test expr-14.1 {CompilePrimaryExpr: literal primary} {expr 1} 1
test expr-14.2 {CompilePrimaryExpr: literal primary} {expr 123} 123
test expr-14.3 {CompilePrimaryExpr: literal primary} {expr 0xff} 255
test expr-14.4 {CompilePrimaryExpr: literal primary} {expr 00010} 8
test expr-14.5 {CompilePrimaryExpr: literal primary} {expr 62.0} 62.0
test expr-14.6 {CompilePrimaryExpr: literal primary} {
    expr 3.1400000
} 3.14
test expr-14.7 {CompilePrimaryExpr: literal primary} {expr {{abcde}<{abcdef}}} 1
test expr-14.8 {CompilePrimaryExpr: literal primary} {expr {{abc\
def} < {abcdef}}} 1
test expr-14.9 {CompilePrimaryExpr: literal primary} {expr {{abc\tde} > {abc\tdef}}} 0
test expr-14.10 {CompilePrimaryExpr: literal primary} {expr {{123}}} 123
test expr-14.11 {CompilePrimaryExpr: var reference primary} {
    set i 789
    list [expr {$i}] [expr $i]
} {789 789}
test expr-14.12 {CompilePrimaryExpr: var reference primary} {
    set i {789}    ;# test expr's aggressive conversion to numeric semantics
    list [expr {$i}] [expr $i]
} {789 789}
test expr-14.13 {CompilePrimaryExpr: var reference primary} {
    catch {unset a}
    set a(foo) foo
    set a(bar) bar
    set a(123) 123
    set result ""
    lappend result [expr $a(123)] [expr {$a(bar)<$a(foo)}]
    catch {unset a}
    set result
} {123 1}
test expr-14.14 {CompilePrimaryExpr: var reference primary} {
    set i 123    ;# test "$var.0" floating point conversion hack
    list [expr $i] [expr $i.0] [expr $i.0/12.0]
} {123 123.0 10.25}
test expr-14.15 {CompilePrimaryExpr: var reference primary} {
    set i 123
    catch {expr $i.2} msg
    set msg
} 123.2
test expr-14.16 {CompilePrimaryExpr: error compiling var reference primary} -body {
    catch {expr {$a(foo}} msg
    set errorInfo
} -match glob -result {missing )
    while *ing
"expr {$a(foo}"}
test expr-14.17 {CompilePrimaryExpr: string primary that looks like var ref} {
    expr $
} $
test expr-14.18 {CompilePrimaryExpr: quoted string primary} {
    expr "21"
} 21
test expr-14.19 {CompilePrimaryExpr: quoted string primary} {
    set i 123
    set x 456
    expr "$i+$x"
} 579
test expr-14.20 {CompilePrimaryExpr: quoted string primary} {
    set i 3
    set x 6
    expr 2+"$i.$x"
} 5.6
test expr-14.21 {CompilePrimaryExpr: error in quoted string primary} {
    catch {expr "[set]"} msg
    set msg
} {wrong # args: should be "set varName ?newValue?"}
test expr-14.22 {CompilePrimaryExpr: subcommand primary} {
    expr {[set i 123; set i]}
} 123
test expr-14.23 {CompilePrimaryExpr: error in subcommand primary} -body {
    catch {expr {[set]}} msg
    set errorInfo
} -match glob -result {wrong # args: should be "set varName ?newValue?"
    while *ing
"set"*}
test expr-14.24 {CompilePrimaryExpr: error in subcommand primary} -body {
    catch {expr {[set i}} msg
    set errorInfo
} -match glob -result {missing close-bracket
    while *ing
"expr {\[set i}"}
test expr-14.25 {CompilePrimaryExpr: math function primary} {
    format %.6g [expr exp(1.0)]
} 2.71828
test expr-14.26 {CompilePrimaryExpr: math function primary} {
    format %.6g [expr pow(2.0+0.1,3.0+0.1)]
} 9.97424
test expr-14.27 {CompilePrimaryExpr: error in math function primary} -body {
    catch {expr sinh::(2.0)} msg
    set errorInfo
} -match glob -result {syntax error in expression "sinh::(2.0)": expected parenthesis enclosing function arguments
    while *ing
"expr sinh::(2.0)"}
test expr-14.28 {CompilePrimaryExpr: subexpression primary} {
    expr 2+(3*4)
} 14
test expr-14.29 {CompilePrimaryExpr: error in subexpression primary} -body {
    catch {expr 2+(3*[set])} msg
    set errorInfo
} -match glob -result {wrong # args: should be "set varName ?newValue?"
    while *ing
"set"*}
test expr-14.30 {CompilePrimaryExpr: missing paren in subexpression primary} -body {
    catch {expr 2+(3*(4+5)} msg
    set errorInfo
} -match glob -result {syntax error in expression "2+(3*(4+5)": looking for close parenthesis
    while *ing
"expr 2+(3*(4+5)"}
test expr-14.31 {CompilePrimaryExpr: just var ref in subexpression primary} {
    set i "5+10"
    list "[expr $i] == 15" "[expr ($i)] == 15" "[eval expr ($i)] == 15"
} {{15 == 15} {15 == 15} {15 == 15}}
test expr-14.32 {CompilePrimaryExpr: unexpected token} -body {
    catch {expr @} msg
    set errorInfo
} -match glob -result {syntax error in expression "@": character not legal in expressions
    while *ing
"expr @"}

test expr-15.1 {CompileMathFuncCall: missing parenthesis} -body {
    catch {expr sinh2.0)} msg
    set errorInfo
} -match glob -result {syntax error in expression "sinh2.0)": variable references require preceding $
    while *ing
"expr sinh2.0)"}
test expr-15.2 {CompileMathFuncCall: unknown math function} -body {
    catch {expr whazzathuh(1)} msg
    set errorInfo
} -match glob -result {unknown math function "whazzathuh"
    while *ing
"expr whazzathuh(1)"}
test expr-15.3 {CompileMathFuncCall: too many arguments} -body {
    catch {expr sin(1,2,3)} msg
    set errorInfo
} -match glob -result {too many arguments for math function
    while *ing
"expr sin(1,2,3)"}
test expr-15.4 {CompileMathFuncCall: ')' found before last required arg} -body {
    catch {expr sin()} msg
    set errorInfo
} -match glob -result {too few arguments for math function
    while *ing
"expr sin()"}
test expr-15.5 {CompileMathFuncCall: too few arguments} -body {
    catch {expr pow(1)} msg
    set errorInfo
} -match glob -result {too few arguments for math function
    while *ing
"expr pow(1)"}
test expr-15.6 {CompileMathFuncCall: missing ')'} -body {
    catch {expr sin(1} msg
    set errorInfo
} -match glob -result {syntax error in expression "sin(1": missing close parenthesis at end of function call
    while *ing
"expr sin(1"}
test expr-15.7 {CompileMathFuncCall: call registered math function} {testmathfunctions} {
    expr 2*T1()
} 246
test expr-15.8 {CompileMathFuncCall: call registered math function} {testmathfunctions} {
    expr T2()*3
} 1035
test expr-15.9 {CompileMathFuncCall: call registered math function} {testmathfunctions} {
    expr T3(21, 37)
} 37
test expr-15.10 {CompileMathFuncCall: call registered math function} {testmathfunctions} {
    expr T3(21.2, 37)
} 37.0
test expr-15.11 {CompileMathFuncCall: call registered math function} {testmathfunctions} {
    expr T3(-21.2, -17.5)
} -17.5
test expr-15.12 {ExprCallMathFunc: call registered math function} {testmathfunctions} {
    expr T3(21, wide(37))
} 37
test expr=15.13 {ExprCallMathFunc: call registered math function} {testmathfunctions} {
    expr T3(wide(21), 37)
} 37
test expr=15.14 {ExprCallMathFunc: call registered math function} {testmathfunctions} {
    expr T3(wide(21), wide(37))
} 37
test expr-15.15 {ExprCallMathFunc: call registered math function} {testmathfunctions} {
    expr T3(21.0, wide(37))
} 37.0
test expr=15.16 {ExprCallMathFunc: call registered math function} {testmathfunctions} {
    expr T3(wide(21), 37.0)
} 37.0

test expr-16.1 {GetToken: checks whether integer token starting with "0x" (e.g., "0x$") is invalid} {
    catch {unset a}
    set a(VALUE) ff15
    set i 123
    if {[expr 0x$a(VALUE)] & 16} {
        set i {}
    }
    set i
} {}
test expr-16.2 {GetToken: check for string literal in braces} {
    expr {{1}}
} {1}

# Check "expr" and computed command names.

test expr-17.1 {expr and computed command names} {
    set i 0
    set z expr
    $z 1+2
} 3

# Check correct conversion of operands to numbers: If the string looks like
# an integer, convert to integer. Otherwise, if the string looks like a
# double, convert to double.

test expr-18.1 {expr and conversion of operands to numbers} {
    set x [lindex 11 0]
    catch {expr int($x)}
    expr {$x}
} 11
test expr-18.2 {whitespace strings should not be == 0 (buggy strtod)} {
    expr {" "}
} { }

# Check "expr" and interpreter result object resetting before appending
# an error msg during evaluation of exprs not in {}s

test expr-19.1 {expr and interpreter result object resetting} {
    proc p {} {
        set t  10.0
        set x  2.0
        set dx 0.2
        set f  {$dx-$x/10}
        set g  {-$x/5}
        set center 1.0
        set x  [expr $x-$center]
        set dx [expr $dx+$g]
        set x  [expr $x+$f+$center]
        set x  [expr $x+$f+$center]
        set y  [expr round($x)]
    }
    p
} 3

# Test for incorrect "double evaluation" semantics

test expr-20.1 {wrong brace matching} {
    catch {unset l}
    catch {unset r}
    catch {unset q}
    catch {unset cmd}
    catch {unset a}
    set l "\{"; set r "\}"; set q "\""
    set cmd "expr $l$q|$q == $q$r$q$r"
    list [catch $cmd a] $a
} {1 {extra characters after close-brace}}
test expr-20.2 {double invocation of variable traces} {
    set exprtracecounter 0
    proc exprtraceproc {args} {
       upvar #0 exprtracecounter counter
       set argc [llength $args]
       set extraargs [lrange $args 0 [expr {$argc - 4}]]
       set name [lindex $args [expr {$argc - 3}]]
       upvar 1 $name var
       if {[incr counter] % 2 == 1} {
           set var "$counter oops [concat $extraargs]"
       } else {
           set var "$counter + [concat $extraargs]"
       }
    }
    trace variable exprtracevar r [list exprtraceproc 10]
    list [catch {expr "$exprtracevar + 20"} a] $a \
        [catch {expr "$exprtracevar + 20"} b] $b \
        [unset exprtracevar exprtracecounter]
} {1 {syntax error in expression "1 oops 10 + 20": extra tokens at end of expression} 0 32 {}}
test expr-20.3 {broken substitution of integer digits} {
    # fails with 8.0.x, but not 8.1b2
    list [set a 000; expr 0x1$a] [set a 1; expr ${a}000]
} {4096 1000}
test expr-20.4 {proper double evaluation compilation, error case} {
    catch {unset a}; # make sure $a doesn't exist
    list [catch {expr 1?{$a}:0} msg] $msg
} {1 {can't read "a": no such variable}}
test expr-20.5 {proper double evaluation compilation, working case} {
    set a yellow
    expr 1?{$a}:0
} yellow
test expr-20.6 {handling of compile error in trial compile} {
    list [catch {expr + {[incr]}} msg] $msg
} {1 {wrong # args: should be "incr varName ?increment?"}}
test expr-20.7 {handling of compile error in runtime case} {
    list [catch {expr + {[error foo]}} msg] $msg
} {1 foo}

# Test for non-numeric boolean literal handling
test expr-21.1 	{non-numeric boolean literals} {expr false } false
test expr-21.2 	{non-numeric boolean literals} {expr true  } true
test expr-21.3 	{non-numeric boolean literals} {expr off   } off
test expr-21.4 	{non-numeric boolean literals} {expr on    } on
test expr-21.5 	{non-numeric boolean literals} {expr no    } no
test expr-21.6 	{non-numeric boolean literals} {expr yes   } yes
test expr-21.7 	{non-numeric boolean literals} {expr !false} 1
test expr-21.8 	{non-numeric boolean literals} {expr !true } 0
test expr-21.9 	{non-numeric boolean literals} {expr !off  } 1
test expr-21.10 {non-numeric boolean literals} {expr !on   } 0
test expr-21.11 {non-numeric boolean literals} {expr !no   } 1
test expr-21.12 {non-numeric boolean literals} {expr !yes  } 0

# Test for non-numeric float handling.
#
# These are non-portable because strtod()-support for "Inf" and "NaN"
# is so wildly variable.  This sucks...
test expr-22.1 {non-numeric floats} nonPortable {
    list [catch {expr {NaN + 1}} msg] $msg
} {1 {can't use non-numeric floating-point value as operand of "+"}}
test expr-22.2 {non-numeric floats} nonPortable {
    list [catch {expr {Inf + 1}} msg] $msg
} {1 {can't use infinite floating-point value as operand of "+"}}
test expr-22.3 {non-numeric floats} nonPortable {
    set nan NaN
    list [catch {expr {$nan + 1}} msg] $msg
} {1 {can't use non-numeric floating-point value as operand of "+"}}
test expr-22.4 {non-numeric floats} nonPortable {
    set inf Inf
    list [catch {expr {$inf + 1}} msg] $msg
} {1 {can't use infinite floating-point value as operand of "+"}}
test expr-22.5 {non-numeric floats} nonPortable {
    list [catch {expr NaN} msg] $msg
} {1 {domain error: argument not in valid range}}
test expr-22.6 {non-numeric floats} nonPortable {
    list [catch {expr Inf} msg] $msg
} {1 {floating-point value too large to represent}}
test expr-22.7 {non-numeric floats} nonPortable {
    list [catch {expr {1 / NaN}} msg] $msg
} {1 {can't use non-numeric floating-point value as operand of "/"}}
test expr-22.8 {non-numeric floats} nonPortable {
    list [catch {expr {1 / Inf}} msg] $msg
} {1 {can't use infinite floating-point value as operand of "/"}}

# Tests for exponentiation handling
test expr-23.1 {CompileExponentialExpr: just exponential expr} {expr 4**2} 16
test expr-23.2 {CompileExponentialExpr: just exponential expr} {expr 0xff**2} 65025
test expr-23.3 {CompileExponentialExpr: just exponential expr} {expr -1**2} 1
test expr-23.4 {CompileExponentialExpr: just exponential expr} {expr 18**07} 612220032
test expr-23.5 {CompileExponentialExpr: error in exponential expr} {
    catch {expr x**3} msg
    set msg
} {syntax error in expression "x**3": variable references require preceding $}
test expr-23.6 {CompileExponentialExpr: simple expo exprs} {expr 0xff**0x3} 16581375
test expr-23.7 {CompileExponentialExpr: error compiling expo arm} {
    catch {expr (-3-)**6} msg
    set msg
} {syntax error in expression "(-3-)**6": unexpected close parenthesis}
test expr-23.8 {CompileExponentialExpr: error compiling expo arm} {
    catch {expr 2**x} msg
    set msg
} {syntax error in expression "2**x": variable references require preceding $}
test expr-23.9 {CompileExponentialExpr: runtime error} {
    list [catch {expr {24.0**"xx"}} msg] $msg
} {1 {can't use non-numeric string as operand of "**"}}
test expr-23.10 {CompileExponentialExpr: runtime error} {
    list [catch {expr {"a"**2}} msg] $msg
} {1 {can't use non-numeric string as operand of "**"}}
test expr-23.11 {CompileExponentialExpr: runtime error} {
    list [catch {expr {0**-1}} msg] $msg
} {1 {exponentiation of zero by negative power}}
test expr-23.12 {CompileExponentialExpr: runtime error} {
    list [catch {expr {0.0**-1.0}} msg] $msg
} {1 {exponentiation of zero by negative power}}
test expr-23.13 {CompileExponentialExpr: runtime error} {
    list [catch {expr {wide(0)**wide(-1)}} msg] $msg
} {1 {exponentiation of zero by negative power}}
test expr-23.14 {INST_EXPON: special cases} {expr {0**1}} 0
test expr-23.15 {INST_EXPON: special cases} {expr {0**0}} 1
test expr-23.16 {INST_EXPON: special cases} {expr {-2**-1}} 0
test expr-23.17 {INST_EXPON: special cases} {expr {-2**0}} 1
test expr-23.18 {INST_EXPON: special cases} {expr {-1**1}} -1
test expr-23.19 {INST_EXPON: special cases} {expr {-1**0}} 1
test expr-23.20 {INST_EXPON: special cases} {expr {-1**2}} 1
test expr-23.21 {INST_EXPON: special cases} {expr {-1**-1}} -1
test expr-23.22 {INST_EXPON: special cases} {expr {1**1234567}} 1
test expr-23.23 {INST_EXPON: special cases} {expr {2**-2}} 0
test expr-23.24 {INST_EXPON: special cases} {expr {wide(0)**wide(1)}} 0
test expr-23.25 {INST_EXPON: special cases} {expr {wide(0)**wide(0)}} 1
test expr-23.26 {INST_EXPON: special cases} {expr {wide(-2)**wide(-1)}} 0
test expr-23.27 {INST_EXPON: special cases} {expr {wide(-2)**wide(0)}} 1
test expr-23.28 {INST_EXPON: special cases} {expr {wide(-1)**wide(1)}} -1
test expr-23.29 {INST_EXPON: special cases} {expr {wide(-1)**wide(0)}} 1
test expr-23.30 {INST_EXPON: special cases} {expr {wide(-1)**wide(2)}} 1
test expr-23.31 {INST_EXPON: special cases} {expr {wide(-1)**wide(-1)}} -1
test expr-23.32 {INST_EXPON: special cases} {expr {wide(1)**wide(1234567)}} 1
test expr-23.33 {INST_EXPON: special cases} {expr {wide(2)**wide(-2)}} 0

# Some compilers get this wrong; ensure that we work around it correctly
test expr-24.1 {expr edge cases; shifting} {expr int(5)>>32} 0
test expr-24.2 {expr edge cases; shifting} {expr int(5)>>63} 0
test expr-24.3 {expr edge cases; shifting} {expr wide(5)>>32} 0
test expr-24.4 {expr edge cases; shifting} {expr wide(5)>>63} 0
test expr-24.5 {expr edge cases; shifting} nonPortable {expr int(5)<<32} 0
test expr-24.6 {expr edge cases; shifting} nonPortable {expr int(5)<<63} 0
test expr-24.7 {expr edge cases; shifting} {expr wide(5)<<32} 21474836480
test expr-24.8 {expr edge cases; shifting} {expr wide(10)<<63} 0
test expr-24.9 {expr edge cases; shifting} {expr 5>>32} 0

# cleanup
if {[info exists a]} {
    unset a
}
::tcltest::cleanupTests
return