Old news

Ivano Primi <ivprimi (a) libero (dot) it>
Last Update: 2017-02-19

2010-01-24: New version 5.2.1 . Changelog:
- Corrected a bug which prevented Numdiff to be built on MacOS X(R) without Natural Language Support. Thanks to Antoine Dechaume for the report.
2010-01-07: New version 5.2.0 . Changelog:
- Numdiff uses now the GNU Multiple Precision Arithmetic Library (also called GNU MP or GMP) if this library is available at build-time. The old internal support for multiple precision arithmetic is deprecated, since Numdiff is quicker if linked against GMP. After building and installing Numdiff, you can know whether it has been linked against GNU MP or not just by calling the program with the option -v. See the User Manual for additional information.
2009-11-31: New version 5.0.0 . Changelog:
- The filter embedded in Numdiff has been improved, it gets no more confused if the same value is represented in scientific notation in one file and in ordinary decimal notation in the other file.
- The Makefile.in (and consequently the Makefile) has been modified to conform to the GNU Coding Standards.
- Now numdiff and ndselect accept long options too (for instance --separator='\n\t %' instead of -s '\n\t %').
- The option -r accepts now an additional parameter which tells to compute the relative differences always with respect to the values in one file, instead of using the classic formula for the relative error.
- The argument of the option -f has been made optional.
- Documentation, i18n and italian l10n have been updated.
2009-08-07: New version 5.0.0-beta4 . Changelog:
- ndfilter has been removed. A much better filtering mechanism, which can be triggered and tuned through suitable command line options, is now included in Numdiff.
- The output format has been slightly modified to let it work well together with the filter.
- The option -L has been removed, since ndselect made it obsolete.
- The option -F has been replaced by -X. -X works however differently, see the User Manual for details.
- The output of the option -S has been improved with addition of new useful information.
- The option -s has now an extended syntax allowing to specify different sets of field delimiters for the two files to compare.
- Support for double-, long double- and high-precision arithmetic has been dropped, since multiple-precision arithmetic is better and fast enough.
- Test routines are not anymore distributed together with the source code of Numdiff.
- Adoption for the source code of the GNU General Public License version 3 (or later) and for the User Manual of the version 1.3 (or later) of the GNU Free Documentation License.
- Copyright has been updated but i18n and Italian l10n are still broken.
2007-05-21: New version 4.2.0 . Changelog:
- Changed the way the options -V and -b interact when they are both set.
- Added the tools ndfilter and ndselect together with new tests. See the section Tools of the User Manual to know what you can do with ndfilter and ndselect.
- Now, when the options -v and -h are both set, Numdiff displays before the information about version, Copyright and NO-Warranty and then the help message.
- Copyright, i18n and Italian l10n updated.
2006-11-20: New version 4.0.0 . Changelog:
- New output format. See the section Warnings of the User Manual for a detailed list of all the changes with respect to the version 3.0.x. At the same time the code printing the output has been cleaned.
- Added the verbose mode (-V option).
- Better handling of the last line of a file.
- i18n, l10n and documentation have been consequently updated.
2006-03-23: New version 3.0.2 . Changelog:
- Fixed a compilation error which occurred when one chose to activate the double, the long-double or the high precision instead of the multiple precision arithmetic. This compilation error was introduced just before releasing the version 3.0 of Numdiff .
- The code for the computation of the absolute value of a complex number in double and long double precision has been improved.
2006-03-22: New version 3.0.1
The only change with respect to the previous version 3.0 has been made in order to speed up the execution of the program when built with the support for multiple precision arithmetic.
2006-03-20: Numdiff 3.0 is finally ready !