Hello all, The Google summer of code gave me the opportunity to learn a lot, but overall I started to build another little part of the open-source world. This was a great experience for me. I'd like to thank my mentor, Paul A. Bristow for all the help he bestowed, Google and all the Boost members who gave me their opinions or advice. During this summer, I've started to build the foundation of a new library. It's only a prototype for the time being but I hope make it useful and powerful soon. The name of this library is "Checks", it currently implements one kind of check function: those used for catching human errors. For example, the famous ISBN has a check digit computed with all the characters. It exists few algorithms and a lot of number are based on well-known algorithm. This library should offer useful extending possibilities because there are so many that we can't implement every type of checks for a Boost library. I've implemented and written the following contents : * Basic check algorithms ( Luhn, Mod11, Verhoeff, ...). * Start to write a test suite that should facilitate the measurement of efficiency of the check algorithms (number of alterations, transposition, ... detected). * Write some sanity tests for the functions implemented (using Boot.Test). * Documented the functions already written and start a "global" documentation of the parameters that affect the efficiency of each algorithms. This library is absolutely not finished but can be used for simple verification or computation of check digit. I would like to improve and even-fuller-document this library before a Boost review. The code, tests and documentation can be found at https://svn.boost.org/svn/boost/sandbox/SOC/2011/checks/ and here are a direct links to the documentation in html https://svn.boost.org/svn/boost/sandbox/SOC/2011/checks/libs/checks/doc/html... and as a single pdf file https://svn.boost.org/svn/boost/sandbox/SOC/2011/checks/libs/checks/doc/chec... (Sadly the Doxygen comments documenting the (many) template parameters are not displayed correctly in the C++ reference section (due to a buglet in the toolchain), so for now you may need to consult the header files to read the C++/Doxygen \tparam comments. Meanwhile, you can also consult the Standalone Doxygen documentation at https://svn.boost.org/svn/boost/sandbox/SOC/2011/checks/libs/checks/doc/doxy... Or you can rebuild the Standalone Doxygen documentation using the Doxywizard and https://svn.boost.org/svn/boost/sandbox/SOC/2011/checks/libs/checks/doc/doxy... If you have any comments or suggestions, please do not hesitate to contact me. Cordially, Pierre Talbot.