Great! He also provides C code, in http://www.cs.indiana.edu/~burger/fp/index.html
The license says: "All software (c) 1996 Robert G. Burger. Permission is hereby granted, free of charge, to any person obtaining a copy of this software, to deal in the software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the software." I guess it means that it can be used. Does anyone have any objections in principle for a patch based on his code that will shorten the repr() of floats while preserving "eval(repr(f)) == f"? If not, I'll try to write it in the next few days. (I checked - indeed, the current implementation just uses the OS's conversion method with 17 precision digits.) Noam 2007/12/9, Marcin 'Qrczak' Kowalczyk <[EMAIL PROTECTED]>: > Dnia 09-12-2007, N o godzinie 10:33 +0200, Noam Raphael pisze: > > > I think that the reason for the long representation is that it uses a > > simple algorithm that makes "eval(repr(f)) == f" always true. However, > > why not use another, a bit more complex, algorithm, which will still > > preserve "eval(repr(f)) == f", but which will shorten the result when > > it can? > > "Printing Floating-Point Numbers Quickly and Accurately" > Robert G. Burger, R. Kent Dybvig > > http://www.cs.indiana.edu/~burger/FP-Printing-PLDI96.pdf > http://www.cs.indiana.edu/~burger/ > > I used this algorithm for my language Kogut. > > -- > __("< Marcin Kowalczyk > \__/ [EMAIL PROTECTED] > ^^ http://qrnik.knm.org.pl/~qrczak/ > > _______________________________________________ > Python-3000 mailing list > Python-3000@python.org > http://mail.python.org/mailman/listinfo/python-3000 > Unsubscribe: > http://mail.python.org/mailman/options/python-3000/noamraph%40gmail.com > _______________________________________________ Python-3000 mailing list Python-3000@python.org http://mail.python.org/mailman/listinfo/python-3000 Unsubscribe: http://mail.python.org/mailman/options/python-3000/archive%40mail-archive.com
