Date:         Mon, 7 Jan 2002 12:34:00 +0100
Reply-To:     Peter Crawford <peter.crawford@DB.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Peter Crawford <peter.crawford@DB.COM>
Subject:      Re: problem with comparing digits
Content-type: text/plain; charset=iso-8859-1

I've been watching with interest
On os390 and ibm-aix sas v8.1, I'm getting  TrueFalse=1
However on winNT sas v8.1   TrueFalse=0

So I checked just a little further.
 ( I can't find any earlier reference to this)
Rounding to non-integer, produces TrueFalse=0
Rounding to the integer, produces "equality" 1
as in this small extension of the test case
55   data _null_;
56     A = '406C04395810624E' ;
57     B = '406C04395810624D' ;
58     An = Input(A, Hex16.) ;
59     Bn = Input(B, Hex16.) ;
60     Ar = Round(An, .001) ;
61     Br = Round(Bn, .001) ;
62     Bi = Round(1000*Bn, 1) ;
63     Ai = Round(1000*An, 1) ;
64     Put An= An=Hex16. Ar=Hex16.;
65     Put Bn= Bn=Hex16. Br=Hex16.;
66     TrueFalse = Ar Eq Br;
67     Put TrueFalse=;
68     Put ai= ai=Hex16. ;
69     Put Bi= Bi=Hex16.;
70     TrueFalsI = Ai Eq Bi;
71     Put TrueFalsI=;
72   run;

An=224.132 An=406C04395810624E Ar=406C04395810624E
Bn=224.132 Bn=406C04395810624D Br=406C04395810624D
TrueFalse=0
Ai=224132 Ai=410B5C2000000000
Bi=224132 Bi=410B5C2000000000
TrueFalsI=1
NOTE: DATA statement used:

Regards
Peter Crawford



Datum:         07/01/2002 10:38
An:            SAS-L@LISTSERV.UGA.EDU




Antwort an:    "Vyverman, Koen" <koen.vyverman@FID-INTL.COM>

Betreff:       Re: problem with comparing digits
Nachrichtentext:

Allow me to chime in and add another dissonant chord to the
cacophony ...

26   data _Null_ ;
27     A = '406C04395810624E' ;
28     An = Input(A, Hex16.) ;
29     Ar = Round(An, .001) ;
30     Put An= An=Hex16. Ar=Hex16.;
31     B = '406C04395810624D' ;
32     Bn = Input(B, Hex16.) ;
33     Br = Round(Bn, .001) ;
34     Put Bn= Bn=Hex16. Br=Hex16.;
35     TrueFalse = Ar Eq Br;
36     Put TrueFalse=;
37   run;

An=224.132 An=406C04395810624E Ar=406C04395810624E
Bn=224.132 Bn=406C04395810624D Br=406C04395810624E
TrueFalse=1

System: WinNT4.0 SP6 Build 1381
SAS: 8.2 (TS2M0), all relevant hotfixes applied.
Processor: x86 Family 6 Model 8 Stepping 3 GenuineIntel

Cheers,
Koen V.





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