Damm algorithm: Difference between revisions
add Rexx
(→{{header|J}}: Add J) |
Walterpachl (talk | contribs) (add Rexx) |
||
Line 95:
112946: Checksum digit correct.</pre>
=={{header|Rexx}}==
<lang rexx>Call init
Call test 5724
Call test 5727
Call test 112946
Call test 112940
Exit
test:
Parse Arg number
int_digit=0
Do p=1 To length(number)
d=substr(number,p,1)
int_digit=grid.int_digit.d
If p<length(number) Then cd=int_digit
End
If int_digit=0 Then
Say number 'is ok'
Else
Say number 'is not ok, check-digit should be' cd '(instead of' d')'
Return
init:
i=-2
Call setup '* 0 1 2 3 4 5 6 7 8 9'
Call setup '0 0 3 1 7 5 9 8 6 4 2'
Call setup '1 7 0 9 2 1 5 4 8 6 3'
Call setup '2 4 2 0 6 8 7 1 3 5 9'
Call setup '3 1 7 5 0 9 8 3 4 2 6'
Call setup '4 6 1 2 3 0 4 5 9 7 8'
Call setup '5 3 6 7 4 2 0 9 5 8 1'
Call setup '6 5 8 6 9 7 2 0 1 3 4'
Call setup '7 8 9 4 5 3 6 2 0 1 7'
Call setup '8 9 4 3 8 6 1 7 2 0 5'
Call setup '9 2 5 8 1 4 3 6 7 9 0'
Return
setup:
Parse Arg list
i=i+1
Do col=-1 To 9
grid.i.col=word(list,col+2)
End
Return</lang>
{{out}}
<pre>5724 is ok
5727 is not ok, check-digit should be 4 (instead of 7)
112946 is ok
112940 is not ok, check-digit should be 6 (instead of 0)</pre>
=={{header|zkl}}==
<lang zkl>fcn damm(digits){ // digits is something that supports an iterator of integers
| |||