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24 Commits

Author SHA1 Message Date
Tim Peters da53afa1b0 A new table to help string->integer conversion was added yesterday to 
both mystrtoul.c and longobject.c.  Share the table instead.  Also
cut its size by 64 entries (they had been used for an inscrutable
trick originally, but the code no longer tries to use that trick).
 2006-05-25 17:34:03 +00:00
Tim Peters b713ec2531 Bug #1334662 / patch #1335972: int(string, base) wrong answers. 
In rare cases of strings specifying true values near sys.maxint,
and oddball bases (not decimal or a power of 2), int(string, base)
could deliver insane answers.  This repairs all such problems, and
also speeds string->int significantly.  On my box, here are %
speedups for decimal strings of various lengths:

length speedup
------ -------
 1       12.4%
 2       15.7%
 3       20.6%
 4       28.1%
 5       33.2%
 6       37.5%
 7       41.9%
 8       46.3%
 9       51.2%
10       19.5%
11       19.9%
12       23.9%
13       23.7%
14       23.3%
15       24.9%
16       25.3%
17       28.3%
18       27.9%
19       35.7%

Note that the difference between 9 and 10 is the difference between
short and long Python ints on a 32-bit box.  The patch doesn't
actually do anything to speed conversion to long:  the speedup is
due to detecting "unsigned long" overflow more quickly.

This is a bugfix candidate, but it's a non-trivial patch and it
would be painful to separate the "bug fix" from the "speed up" parts.
 2006-05-23 18:45:30 +00:00
Jack Jansen fb2765666f Getting rid of support for the ancient Apple MPW compiler. 2003-11-19 15:24:47 +00:00
Guido van Rossum 8586991099 REMOVED all CWI, CNRI and BeOpen copyright markings. 
This should match the situation in the 1.6b1 tree.
 2000-09-01 23:29:29 +00:00
Thomas Wouters f70ef4f860 Mass ANSIfication of function definitions. Doesn't cover all 'extern' 
declarations yet, those come later.
 2000-07-22 18:47:25 +00:00
Guido van Rossum ffcc3813d8 Change copyright notice - 2nd try. 2000-06-30 23:58:06 +00:00
Guido van Rossum fd71b9e9d4 Change copyright notice. 2000-06-30 23:50:40 +00:00
Guido van Rossum 2571cc8bf5 Changes by Mark Hammond for Windows CE. Mostly of the form 
#ifdef DONT_HAVE_header_H ... #endif around #include <header.h>.
 1999-04-07 16:07:23 +00:00
Guido van Rossum 1924a0677d Chris H. writes: 
If we're going to put the PyOS_strtol() proto in intobject.h we should
include it here or the symbol isn't exported on PowerPC.
 1998-12-18 22:02:37 +00:00
Guido van Rossum e32d1537f0 Sigh. The hack to enable special treatment for errno on SGI machines 
must be enabled here, otherwise the errno we set on overflows is not
the errno that's being read by compile.c.  Wonder how many other files
that do their own "#include config.h" need this too :-(

(Because of the structure of autoconf, it's not so simple to get this
into config.h...)
 1998-07-07 21:32:53 +00:00
Guido van Rossum 39b0f8976c Address warnings issued by the MSVC++ compiler 1998-04-10 21:52:06 +00:00
Guido van Rossum 330aafb0c2 For base 10, cast unsigned long to long before testing overflow. 
This prevents 4294967296 from being an acceptable way to spell zero!
 1997-12-15 17:27:35 +00:00
Guido van Rossum ee2373b930 Oops, missed some renamings. 1997-05-07 23:51:07 +00:00
Guido van Rossum 644a12b00c Tweaks to keep the Microsoft compiler quier. 1997-04-09 19:24:53 +00:00
Guido van Rossum 80bb9655f0 Keep gcc -Wall happy. 1996-12-05 23:27:02 +00:00
Guido van Rossum d266eb460e New permission notice, includes CNRI. 1996-10-25 14:44:06 +00:00
Guido van Rossum 7cf1fcf347 Always include config.h 1996-08-19 22:12:39 +00:00
Guido van Rossum 9caf77a485 Put definition of _REENTRANT in config.h 1996-08-01 00:52:26 +00:00
Guido van Rossum 5e41644ddd Added _REENTRANT definition 1996-07-31 17:52:04 +00:00
Guido van Rossum 7f7f274839 use Py_CHARMASK 1995-02-10 17:01:56 +00:00
Guido van Rossum 5c2306c44f include rename2.h 1995-01-17 16:31:21 +00:00
Guido van Rossum 6d023c98b0 Added 1995 to copyright message. 
bltinmodule.c: fixed coerce() nightmare in ternary pow().
modsupport.c (initmodule2): pass METH_FREENAME flag to newmethodobject().
pythonrun.c: move flushline() into and around print_error().
 1995-01-04 19:12:13 +00:00
Guido van Rossum b6775db241 Merge alpha100 branch back to main trunk 1994-08-01 11:34:53 +00:00
Guido van Rossum be0e9420a1 New files. 1993-12-24 10:32:00 +00:00