STINNER Victor <[EMAIL PROTECTED]> added the comment: Ok, I understand why different versions of the same code gives different results: compiler flags! Python 2.5.1 is my Ubuntu version (should be compiled with -O3) whereas Python 2.7 and 3.1a0 are compiled by me with -00.
Results with Python 2.5.1: - with -O0, float(295147905179352891391L) gives 2.9514790517935283e+20 - with -O1, float(295147905179352891391L) gives 2.9514790517935289e+20 I'm unable to isolate the exact compiler flag which changes the result. I tried all options listed in the gcc doc for the -O1 option: http://gcc.gnu.org/onlinedocs/gcc-4.1.2/gcc/Optimize-Options.html#Optimize-Options _______________________________________ Python tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue3166> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
