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BinaryStringXOR ( a ; b )

XOR two binary strings

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John White Mc128k http://www.mc128k.com

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

/** * ===================================== * BinaryStringXOR ( a ; b ) * * PURPOSE: * Calculate the XOR value of two binary strings (like "01001") * This function is recursive * * RETURNS: * A binary string. * * PARAMETERS: * a: The first string to xor * b: The second string * * RELEASE: * 2017-08-07 * * VERSION: 1.0 * * AUTHOR: © 2017 Mc128k * ===================================== */ Let ( ~len = Min ( Length ( a ) ; Length ( b ) ) ; If ( ~len = 0 ; "" ; GetAsText ( GetAsBoolean ( Left ( a ; 1 ) ) xor GetAsBoolean ( Left ( b ; 1 ) ) ) & BinaryStringXOR ( Middle ( a ; 2 ; ~len - 1 ) ; Middle ( b ; 2 ; ~len - 1 ) ) ) ) Click to copy

XOR two binary values, expressed as strings of "1" and "0". I used it for a hash function.

 

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