Issue 635115: int(1e200) should return long (original) (raw)

Created on 2002-11-07 19:02 by doerwalter, last changed 2022-04-10 16:05 by admin. This issue is now closed.

Messages (7)
msg13129 - (view)	Author: Walter Dörwald (doerwalter) *	Date: 2002-11-07 19:02
To remove the distinction between int and long int(1e200) should return a long object instead of raising an OverflowError. This is related to bug #629989: int("123123123123123123") doesn't work. Fixing this could be done by changing Objects/floatobject.c/float_int (see attached patch), but this changes the meaning of the nb_int slot.
msg13130 - (view)	Author: Guido van Rossum (gvanrossum) *	Date: 2002-11-14 23:22
Logged In: YES user_id=6380 PyInt_AsLong() insists that nb_int returns a PyInt_Object. I think it's okay that nb_int returns a non-int -- classes don't require __int__ to do this either. So PyInt_AsLong() should accept a PyLong_Object as well, I guess.
msg13131 - (view)	Author: Walter Dörwald (doerwalter) *	Date: 2002-11-18 19:01
Logged In: YES user_id=89016 This second patch (diff2.txt) fixes PyInt_AsLong(), so it is able to cope with longs. In addition to that int(long) has been changed to return a long, if the int overflows: >>> int(1L<<100) 1267650600228229401496703205376L For subinstances of long the patch ensures that a proper long instance will be created. (See the additional test in test_long.py). If I understood the sourcecode correctly nb_int, nb_long and nb_float might return objects, that are not instances of int, long or float, but instances of subclasses of int, long or float. Is this a bug or an (undocumented?) feature?
msg13132 - (view)	Author: Guido van Rossum (gvanrossum) *	Date: 2002-11-18 19:46
Logged In: YES user_id=6380 Looks good (I haven't run this). I was shocked to see that int(2**1000) will now return a long rather than failing, but that's actually correct! :-)
msg13133 - (view)	Author: Walter Dörwald (doerwalter) *	Date: 2002-11-19 11:09
Logged In: YES user_id=89016 So should I add a note to Misc/NEWS and check it in? Are there any changes to the documentation that should be done?
msg13134 - (view)	Author: Guido van Rossum (gvanrossum) *	Date: 2002-11-19 15:45
Logged In: YES user_id=6380 Please do check it in and add a note to NEWS. I dunno about docs, please look and ask around. int() should be easy to find.
msg13135 - (view)	Author: Walter Dörwald (doerwalter) *	Date: 2002-11-19 20:54
Logged In: YES user_id=89016 Doc/api/abstract.tex 1.20 Checked in as: Doc/lib/libfuncs.tex 1.120 Lib/test/test_b1.py 1.58 Lib/test/test_long.py 1.21 Lib/test/test_types.py 1.40 Misc/NEWS 1.529 Objects/floatobject.c 2.117 Objects/intobject.c 2.95 Objects/longobject.c 1.145