C problems validating a credit card dating usa male profile kuwaite community


24-Oct-2020 22:49

CHTMLstretch H, CHTMLchild Node:function(t,e)}),s.mfrac.

Startup Hook("Common HTML Jax Ready",function()), Math Jax.

Val next dim check as integer = ( sum * 9 ) mod 10 return str( check )End Function Public Function Validate Mod10(digits As String) as Boolean dim check Digit as string = digits.

) ["49927398716" "49927398717" "1234567812345678" "1234567812345670"]) ; j = j 1 sum = sum d :(ln2)ln3 luhn = 0; luhn = eq(remdr(sum,10),0) 1 :(return)luhn_end * # Test and display test = " output = luhn(n) ': ' n" n = '49927398716'; eval(test) n = '49927398717'; eval(test) n = '1234567812345678'; eval(test) n = '1234567812345670'; eval(test)end Works with SPARK GPL 2010 and GPS GPL 2010. 9 then digit Sum (n div 10 n mod 10) else n fun luhn_sum [] = 0 | luhn_sum [d] = d | luhn_sum (d::d'::ds) = d digit Sum (2*d') luhn_sum dsin fun luhn_test n = luhn_sum (rev Digits n) mod 10 = 0 val res = map luhn_test [49927398716, 49927398717, 1234567812345678, 1234567812345670];end; (*[opening file "luhn.sml"] CREATE FUNCTION dbo._Credit Card Num Check( @str CCNum Var Char(40) )RETURNS Var Char(7)ASBEGIN DECLARE @string Var Char(40) = REVERSE(@str CCNum); -- usage: set once, never changed DECLARE @str S2Values Var Char(10) = '0246813579'; -- constant: maps digits to their S2 summed values DECLARE @table TABLE (ID INT, Value INT, S_Value INT); -- ID=digit position. DECLARE @p INT = 0; -- loop counter: position in string -- Convert the reversed string's digits into rows in a table variable, S_Values to be updated afterwards WHILE @p /:") SET esum=SUM (estring) SET s2=APPEND (s2,esum) ELSE SET s2=APPEND (s2,even) ENDIF ELSE SET s1=APPEND(s1,oe) ENDIF ENDLOOPSET s1=SUM(s1),s2=SUM(s2)SET checksum=s1 s2SET c=CENTER(c,-adjust)IF ("0") THEN PRINT c,"true"ELSE PRINT c,"false"[email protected](do (defun luhn (num) (for ((i 1) (sum 0)) ((not (zerop num)) (zerop (mod sum 10))) ((inc i) (set num (trunc num 10))) (let ((dig (mod num 10))) (if (oddp i) (inc sum dig) (let ((dig2 (* 2 dig))) (inc sum ( (trunc dig2 10) (mod dig2 10)))))))))@(collect :vars nil)@@(output)@ccnumber - 9, n - 9, n)) Mod 10 = 0 End Function Sub Main() Console. Val ) next dim sum as integer for each digit as string in digit Arr sum = sum digit.

N X (if (= 1 (N 2)) (double X) X)) 0 Reversed) Summed (sum Doubled) Modded (Summed 10) (= 0 Modded))) "Expected: [true false false true]" (map (function luhn? A final test has been added which passes as valid unless there is an explicit test for all digits. Write Line(Valid Luhn("1234567812345678")) Console. Write Line(Valid Luhn("1234567812345670")) End Sub Public Function Modulus10(digits As String) as String // // Confirm the digits are really, well, digits // dim validator as new Reg Ex validator. Search( digits ) is nil then // // Raise an exception or something // end if static doubling Table() as string = array( "0", "2", "4", "6", "8", "1", "3", "5", "7", "9" ) dim digit Arr() as string = digits. Ubound downto 0 step 2 digit Arr( i ) = doubling Table( digit Arr( i ).

They are only giving small algorithm for checking the card validity and what digits those different types of card start.

"PASS " : "FAIL ", card)end 9 then subtract 9 from evens add evens to s2 end if end repeat return the last char of (s1 s2) is 0end Luhn Test -- testrepeat for each item ccno in "49927398716,49927398717,1234567812345678,1234567812345670" put ccno && Luhn Test(ccno) & cr after luhncheckend repeatput luhncheck 49927398716 true49927398717 false1234567812345678 false1234567812345670 true to small? Numbers larger than 100 are not recognized by the interpreter in literal form and must instead be entered as "native" numbers (i.e. Since internally, a native number is just a sequence of the digits in reverse order with an end digit marker, converting the number into a reversed list of digits mainly involves removing this terminator, so that we can immediately treat the digits as number elements.

as $in | reduce range(0; length) as $i ([]; if ($i % 2) == 0 then . * 2 | sumdigits) | add) as $s2 | 0 == ($s1 $s2) % 10 ;function luhntest(x:: Integer) d = reverse(digits(x)) s = sum(d[1:2:end]) s = sum(sum.(digits.(2d[2:2:end]))) return s % 10 == 0end for card in [49927398716, 49927398717, 1234567812345678, 1234567812345670] println(luhntest(card) ? ] :wordend to double.digit :digit output item :digit @0 ; output ifelse :digit 4 then sum = sum - 9 odd = not odd end for return sum % 10 == 0end function test = function(s) if is Valid(s) then print s ": valid" else print s ": invalid"end function test "49927398716"test "49927398717"test "1234567812345678"test "1234567812345670"proc luhn(cc): bool = const m = [0,2,4,6,8,1,3,5,7,9] var sum = 0 var odd = true for i in countdown(cc.high, 0): let digit = ord(cc[i]) - ord('0') sum = (if odd: digit else: m[digit]) odd = not odd sum mod 10 == 0 for cc in ["49927398716", "49927398717", "1234567812345678", "1234567812345670"]: echo cc," ",luhn(cc)/*------------------------------------------------------------------------------ Purpose: Applies Luhn Algorithm to check a Number Notes: Returns True/False Validation based on check digit------------------------------------------------------------------------------*/ This example highlights Order's unusual treatment of numbers.

Augment(,get_RGB:function(t),get_gray:function(t),get_named:function(t),padding:function()}, Math Jax.

Complete("[Math Jax]/extensions/Te X/color.js"), Math Jax.

This could be done by reading characters and ending at a new line, but this way is much simpler.



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