luhn


luhn, a C code which demonstrates the calculation and use of the Luhn check digit for error detection.

Licensing:

The computer code and data files described and made available on this web page are distributed under the MIT license

Languages:

luhn is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and a Python version.

Related Data and Programs:

BANK, a C code which can compute the check digit associated with a US Bank Routing Number check digit, or it can report whether a 9-digit code is actually valid.

ISBN, a C code which can determine the check digit for an International Standard Book Number or report whether a given ISBN is valid.

luhn_test

UPC, a C code which can determine the check digit for a Uniform Product Code (UPC) or report whether a given UPC is valid.

Source Code:


Last revised on 12 July 2019.