Thanks for the answer. I was able to take a log with -X:ExceptionDetail, but since Japanese, log file includes Japanse characters; I removed them by hand. I was not able to which numbers were involved. The log file is attached.
Please note that there are two problems; one is "ValueError: value too big" problem which we do not encounter with CPython. The other is an infinite loop bug. Please also note that NZMATH is pure python, having simple module structure and we will be able to duplicate the problem if you download it. Best regards, 2006/8/10, Martin Maly <[EMAIL PROTECTED]>:
By any chance, were you able to determine which operation caused the exception and which numbers were involved? What would help me find out what the problem is faster would be get a call stack (for that, could you please run your repro with -X:ExceptionDetail switch? Then ideally if you could find out what the big integer numbers were with which the operation failed, that would be ideal. Thanks! Martin -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of HEMMI, Shigeru Sent: Tuesday, August 08, 2006 4:31 PM To: Discussion of IronPython Subject: [IronPython] Bug of big integer manipulation Hello, NZMATH is a Python based number theory oriented calculation system developed by Tokyo Metropolitan University. The URL is http://tnt.math.metro-u.ac.jp/nzmath/. Using NZMATH, I encounterd a bug of big integer manipulation. IronPython ============================ C:\IronPython-2604>ipy IronPython 1.0.2411 on .NET 2.0.50727.42 Copyright (c) Microsoft Corporation. All rights reserved. >>> import sys >>> sys.path.append(r'C:\Python24\Lib') >>> sys.path.append(r'C:\Python24\Lib\site-packages') >>> from nzmath import prime >>> prime.nextPrime(256) 257 >>> nx = sys.maxint >>> prime.nextPrime(nx*nx) Traceback (most recent call last): File , line 0, in <stdin>##115 File C:\Python24\Lib\site-packages\nzmath\prime.py, line 158, in nextPrime File C:\Python24\Lib\site-packages\nzmath\prime.py, line 206, in primeq File C:\Python24\Lib\site-packages\nzmath\prime.py, line 188, in smallSpsp File C:\Python24\Lib\site-packages\nzmath\prime.py, line 41, in spsp ValueError: value too big >>> prime.nextPrime(nx) ## Seems going into infinite loop. CPython ============================ C:\IronPython-2604>python Python 2.4.3 (#69, Mar 29 2006, 17:35:34) [MSC v.1310 32 bit (Intel)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> import sys >>> from nzmath import prime >>> nx = sys.maxint >>> prime.nextPrime(nx*nx) 4611686014132420667L >>> prime.nextPrime(nx) 2147483659L >>> Regards, _______________________________________________ users mailing list users@lists.ironpython.com http://lists.ironpython.com/listinfo.cgi/users-ironpython.com _______________________________________________ users mailing list users@lists.ironpython.com http://lists.ironpython.com/listinfo.cgi/users-ironpython.com
IpyBugOfBigIntegerManipulation.log
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