Commit Graph

135 Commits

Author SHA1 Message Date
Guido van Rossum e75bfde7e9 Bugfix candidate.
Fix SF bug #511603: Error calling str on subclass of int

Explicitly fill in tp_str with the same pointer as tp_repr.
2002-02-01 15:34:10 +00:00
Tim Peters a3c01ce696 SF bug #488480: integer multiply to return -max_int-1.
int_mul():  new and vastly simpler overflow checking.  Whether it's
faster or slower will likely vary across platforms, favoring boxes
with fast floating point.  OTOH, we no longer have to worry about
people shipping broken LONG_BIT definitions <0.9 wink>.
2001-12-04 23:05:10 +00:00
Tim Peters 422210426e SF bug #487743: test_builtin fails on 64 bit platform.
Bugfix candidate.
int_repr():  we've never had a buffer big enough to hold the largest
possible result on a 64-bit box.  Now that we're using snprintf instead
of sprintf, this can lead to nonsense results instead of random stack
corruption.
2001-12-01 02:52:56 +00:00
Barry Warsaw 6197509f24 PyInt_FromString(), int_repr(), int_oct(), int_hex(): Conversion of
sprintf() to PyOS_snprintf() for buffer overrun avoidance.
2001-11-28 20:55:34 +00:00
Guido van Rossum 1952e388ca Add additional coercion support for "self subtypes" to int, long,
float (compare the recent checkin to complex).  Added tests for these.
2001-09-19 01:25:16 +00:00
Guido van Rossum 7e35d57c0c A fix for SF bug #461546 (bug in long_mul).
Both int and long multiplication are changed to be more careful in
their assumptions about when one of the arguments is a sequence: the
assumption that at least one of the arguments must be an int (or long,
respectively) is still held, but the assumption that these don't smell
like sequences is no longer true: a subtype of int or long may well
have a sequence-repeat thingie!
2001-09-15 03:14:32 +00:00
Tim Peters 73a1dfe367 More bug 460020. When I is a subclass of int, disable the +I(whatever),
I(0) << whatever, I(0) >> whatever, I(whatever) << 0 and I(whatever) >> 0
optimizations.
2001-09-11 21:44:14 +00:00
Guido van Rossum dea6ef9bfd Replace a few places where X->ob_type was compared to &PyXXX_Type with
calls to PyXXX_CheckExact(X).
2001-09-11 16:13:52 +00:00
Tim Peters 4c483c4d8e Make the error msgs in our pow() implementations consistent. 2001-09-05 06:24:58 +00:00
Tim Peters e2a600099d Change long/long true division to return as many good bits as it can;
e.g., (1L << 40000)/(1L << 40001) returns 0.5, not Inf or NaN or whatever.
2001-09-04 06:17:36 +00:00
Tim Peters 9c1d7fd5f2 Move int_true_divide next to the other division routines. 2001-09-04 05:52:47 +00:00
Tim Peters 32f453eaa4 New restriction on pow(x, y, z): If z is not None, x and y must be of
integer types, and y must be >= 0.  See discussion at
http://sf.net/tracker/index.php?func=detail&aid=457066&group_id=5470&atid=105470
2001-09-03 08:35:41 +00:00
Guido van Rossum 393661d15f Add warning mode for classic division, almost exactly as specified in
PEP 238.  Changes:

- add a new flag variable Py_DivisionWarningFlag, declared in
  pydebug.h, defined in object.c, set in main.c, and used in
  {int,long,float,complex}object.c.  When this flag is set, the
  classic division operator issues a DeprecationWarning message.

- add a new API PyRun_SimpleStringFlags() to match
  PyRun_SimpleString().  The main() function calls this so that
  commands run with -c can also benefit from -Dnew.

- While I was at it, I changed the usage message in main() somewhat:
  alphabetized the options, split it in *four* parts to fit in under
  512 bytes (not that I still believe this is necessary -- doc strings
  elsewhere are much longer), and perhaps most visibly, don't display
  the full list of options on each command line error.  Instead, the
  full list is only displayed when -h is used, and otherwise a brief
  reminder of -h is displayed.  When -h is used, write to stdout so
  that you can do `python -h | more'.

Notes:

- I don't want to use the -W option to control whether the classic
  division warning is issued or not, because the machinery to decide
  whether to display the warning or not is very expensive (it involves
  calling into the warnings.py module).  You can use -Werror to turn
  the warnings into exceptions though.

- The -Dnew option doesn't select future division for all of the
  program -- only for the __main__ module.  I don't know if I'll ever
  change this -- it would require changes to the .pyc file magic
  number to do it right, and a more global notion of compiler flags.

- You can usefully combine -Dwarn and -Dnew: this gives the __main__
  module new division, and warns about classic division everywhere
  else.
2001-08-31 17:40:15 +00:00
Guido van Rossum d93dce1699 Fix typo: double semicolons. 2001-08-30 03:09:31 +00:00
Guido van Rossum bef1417f9f Make int, long and float subclassable.
This uses a slightly wimpy and wasteful approach, but it works. :-)
2001-08-29 15:47:46 +00:00
Guido van Rossum 0b13116a62 err_ovf(): only raise OverflowError when OverflowWarning was raised. 2001-08-23 21:32:40 +00:00
Tim Peters 31960db5a5 int_pow(): Repair typo when passing on to float pow (the 2nd argument was
being passed as both the 2nd and 3rd args).  Regression test will follow.
2001-08-23 21:28:33 +00:00
Guido van Rossum e27f795b72 Change all case where we used to raise OverflowError to issue a
warning and then redo the operation using long ints.
2001-08-23 02:59:04 +00:00
Martin v. Löwis 339d0f720e Patch #445762: Support --disable-unicode
- Do not compile unicodeobject, unicodectype, and unicodedata if Unicode is disabled
- check for Py_USING_UNICODE in all places that use Unicode functions
- disables unicode literals, and the builtin functions
- add the types.StringTypes list
- remove Unicode literals from most tests.
2001-08-17 18:39:25 +00:00
Guido van Rossum 4668b000a1 Implement PEP 238 in its (almost) full glory.
This introduces:

- A new operator // that means floor division (the kind of division
  where 1/2 is 0).

- The "future division" statement ("from __future__ import division)
  which changes the meaning of the / operator to implement "true
  division" (where 1/2 is 0.5).

- New overloadable operators __truediv__ and __floordiv__.

- New slots in the PyNumberMethods struct for true and floor division,
  new abstract APIs for them, new opcodes, and so on.

I emphasize that without the future division statement, the semantics
of / will remain unchanged until Python 3.0.

Not yet implemented are warnings (default off) when / is used with int
or long arguments.

This has been on display since 7/31 as SF patch #443474.

Flames to /dev/null.
2001-08-08 05:00:18 +00:00
Tim Peters 6d6c1a35e0 Merge of descr-branch back into trunk. 2001-08-02 04:15:00 +00:00
Fred Drake 1bc8fab0e7 Kill more warnings from the SGI compiler.
Part of SF patch #434992.
2001-07-19 21:49:38 +00:00
Guido van Rossum b82fedc7d8 On int to the negative integral power, let float handle it instead of
raising an error.  This was one of the two issues that the VPython
folks were particularly problematic for their students.  (The other
one was integer division...)  This implements (my) SF patch #440487.
2001-07-12 11:19:45 +00:00
Tim Peters 1dad6a86de SF bug 434186: 0x80000000/2 != 0x80000000>>1
i_divmod:  New and simpler algorithm.  Old one returned gibberish on most
boxes when the numerator was -sys.maxint-1.  Oddly enough, it worked in the
release (not debug) build on Windows, because the compiler optimized away
some tricky sign manipulations that were incorrect in this case.
Makes you wonder <wink> ...
Bugfix candidate.
2001-06-18 19:21:11 +00:00
Martin v. Löwis 2b6727bd8a Use Py_CHARMASK for ctype macros. Fixes bug #232787. 2001-03-06 12:12:02 +00:00
Guido van Rossum 3968e4c0f5 Rich comparisons fall-out:
- Get rid of int_cmp().

- Renamed Py_TPFLAGS_NEWSTYLENUMBER to Py_TPFLAGS_CHECKTYPES.
2001-01-17 15:32:23 +00:00
Neil Schemenauer 139e72ad1a Make int a new style number type. Sequence repeat is now done here
now as well.
2001-01-04 01:45:33 +00:00
Fred Drake 661ea26b3d Ka-Ping Yee <ping@lfw.org>:
Changes to error messages to increase consistency & clarity.

This (mostly) closes SourceForge patch #101839.
2000-10-24 19:57:45 +00:00
Tim Peters c54d19043a SF bug 115831 and Ping's SF patch 101751, 0.0**-2.0 returns inf rather than
raise ValueError.  Checked in the patch as far as it went, but also changed
all of ints, longs and floats to raise ZeroDivisionError instead when raising
0 to a negative number.  This is what 754-inspired stds require, as the "true
result" is an infinity obtained from finite operands, i.e. it's a singularity.
Also changed float pow to not be so timid about using its square-and-multiply
algorithm.  Note that what math.pow does is unrelated to what builtin pow
does, and will still vary by platform.
2000-10-06 00:36:09 +00:00
Tim Peters d57731f74b Move LONG_BIT from intobject.c to pyport.h. #error if it's already been
#define'd to an unreasonable value (several recent gcc systems have
misdefined it, causing bogus overflows in integer multiplication).  Nuke
CHAR_BIT entirely.
2000-10-05 01:42:25 +00:00
Fred Drake d5fadf75e4 Rationalize use of limits.h, moving the inclusion to Python.h.
Add definitions of INT_MAX and LONG_MAX to pyport.h.
Remove includes of limits.h and conditional definitions of INT_MAX
and LONG_MAX elsewhere.

This closes SourceForge patch #101659 and bug #115323.
2000-09-26 05:46:01 +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 7e47402264 Spelling fixes supplied by Rob W. W. Hooft. All these are fixes in either
comments, docstrings or error messages. I fixed two minor things in
test_winreg.py ("didn't" -> "Didn't" and "Didnt" -> "Didn't").

There is a minor style issue involved: Guido seems to have preferred English
grammar (behaviour, honour) in a couple places. This patch changes that to
American, which is the more prominent style in the source. I prefer English
myself, so if English is preferred, I'd be happy to supply a patch myself ;)
2000-07-16 12:04:32 +00:00
Fred Drake a2f5511941 ANSI-fication of the sources. 2000-07-09 15:16:51 +00:00
Tim Peters 7d3a511a40 Cray J90 fixes for long ints.
This was a convenient excuse to create the pyport.h file recently
discussed!
Please use new Py_ARITHMETIC_RIGHT_SHIFT when right-shifting a
signed int and you *need* sign-extension.  This is #define'd in
pyport.h, keying off new config symbol SIGNED_RIGHT_SHIFT_ZERO_FILLS.
If you're running on a platform that needs that symbol #define'd,
the std tests never would have worked for you (in particular,
at least test_long would have failed).
The autoconfig stuff got added to Python after my Unix days, so
I don't know how that works.  Would someone please look into doing
& testing an auto-config of the SIGNED_RIGHT_SHIFT_ZERO_FILLS
symbol?  It needs to be defined if & only if, e.g., (-1) >> 3 is
not -1.
2000-07-08 04:17:21 +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
Fred Drake a44d353e2b Trent Mick <trentm@activestate.com>:
The common technique for printing out a pointer has been to cast to a long
and use the "%lx" printf modifier. This is incorrect on Win64 where casting
to a long truncates the pointer. The "%p" formatter should be used instead.

The problem as stated by Tim:
> Unfortunately, the C committee refused to define what %p conversion "looks
> like" -- they explicitly allowed it to be implementation-defined. Older
> versions of Microsoft C even stuck a colon in the middle of the address (in
> the days of segment+offset addressing)!

The result is that the hex value of a pointer will maybe/maybe not have a 0x
prepended to it.


Notes on the patch:

There are two main classes of changes:
- in the various repr() functions that print out pointers
- debugging printf's in the various thread_*.h files (these are why the
patch is large)


Closes SourceForge patch #100505.
2000-06-30 15:01:00 +00:00
Guido van Rossum c18a6f466a Replace PyErr_BadArgument() error in PyInt_AsLong() with "an integer
is required" (we can't say more because we don't know in which context
it is called).
2000-05-09 14:27:48 +00:00
Guido van Rossum b18618dab7 Vladimir Marangozov's long-awaited malloc restructuring.
For more comments, read the patches@python.org archives.
For documentation read the comments in mymalloc.h and objimpl.h.

(This is not exactly what Vladimir posted to the patches list; I've
made a few changes, and Vladimir sent me a fix in private email for a
problem that only occurs in debug mode.  I'm also holding back on his
change to main.c, which seems unnecessary to me.)
2000-05-03 23:44:39 +00:00
Guido van Rossum 9e896b37c7 Marc-Andre's third try at this bulk patch seems to work (except that
his copy of test_contains.py seems to be broken -- the lines he
deleted were already absent).  Checkin messages:


New Unicode support for int(), float(), complex() and long().

- new APIs PyInt_FromUnicode() and PyLong_FromUnicode()
- added support for Unicode to PyFloat_FromString()
- new encoding API PyUnicode_EncodeDecimal() which converts
  Unicode to a decimal char* string (used in the above new
  APIs)
- shortcuts for calls like int(<int object>) and float(<float obj>)
- tests for all of the above

Unicode compares and contains checks:
- comparing Unicode and non-string types now works; TypeErrors
  are masked, all other errors such as ValueError during
  Unicode coercion are passed through (note that PyUnicode_Compare
  does not implement the masking -- PyObject_Compare does this)
- contains now works for non-string types too; TypeErrors are
  masked and 0 returned; all other errors are passed through

Better testing support for the standard codecs.

Misc minor enhancements, such as an alias dbcs for the mbcs codec.

Changes:
- PyLong_FromString() now applies the same error checks as
  does PyInt_FromString(): trailing garbage is reported
  as error and not longer silently ignored. The only characters
  which may be trailing the digits are 'L' and 'l' -- these
  are still silently ignored.
- string.ato?() now directly interface to int(), long() and
  float(). The error strings are now a little different, but
  the type still remains the same. These functions are now
  ready to get declared obsolete ;-)
- PyNumber_Int() now also does a check for embedded NULL chars
  in the input string; PyNumber_Long() already did this (and
  still does)

Followed by:

Looks like I've gone a step too far there... (and test_contains.py
seem to have a bug too).

I've changed back to reporting all errors in PyUnicode_Contains()
and added a few more test cases to test_contains.py (plus corrected
the join() NameError).
2000-04-05 20:11:21 +00:00
Guido van Rossum 4c08d554b9 Many changes for Unicode, by Marc-Andre Lemburg. 2000-03-10 22:55:18 +00:00
Guido van Rossum fb4574e320 In response to one particular complaint on edu-sig, change some error
messages from "OverflowError: integer pow()" to "OverflowError:
integer exponentiation".  (Not that this takes care of the complaint
in general that the error messages could be greatly improved. :-)
2000-02-15 14:51:46 +00:00
Guido van Rossum bffd683f73 The rest of the changes by Trent Mick and Dale Nagata for warning-free
compilation on NT Alpha.  Mostly added casts etc.
2000-01-20 22:32:56 +00:00
Barry Warsaw 226ae6ca12 Mainlining the string_methods branch. See branch revision log
messages for specific changes.
1999-10-12 19:54:53 +00:00
Guido van Rossum e13ff2e2d6 Patch by Tim Peters fixing PR#88:
Integer division can crash under Windows.
1999-09-27 17:12:47 +00:00
Guido van Rossum 51288bce48 Fix a problem with Vladimir's PyInt_Fini code: clear the free list; if
a block cannot be freed, add its free items back to the free list, and
add its valid ints back to the small_ints array if they are in range.
This is necessary to avoid leaking when Python is reinitialized later.
1999-03-19 20:30:39 +00:00
Guido van Rossum 3fce883922 Vladimir has restructured his code somewhat so that the blocks are now
represented by an explicit structure.  (There are still too many casts
in the code, but that may be unavoidable.)

Also added code so that with -vv it is very chatty about what it does.
1999-03-12 19:43:17 +00:00
Guido van Rossum da084edd38 Patch by Vladimir Marangoz to allow freeing of the allocated blocks of
integers on finalization.
1999-03-10 22:55:24 +00:00
Guido van Rossum fbbd57e4ca Added _Fini() routines to free up some memory 1997-08-05 02:16:08 +00:00
Guido van Rossum c0b618a2cc Quickly renamed the last directory. 1997-05-02 03:12:38 +00:00
Guido van Rossum 6f72f97c03 Increased buffer sizes used by hex() and oct() -- on 64-bit or 128-bit
machines, the string may get longer than 20 characters!
1997-01-14 15:43:41 +00:00
Guido van Rossum ebee0256f3 Changed hex() and oct() again, to never emit a '-' sign. 1997-01-12 19:48:03 +00:00
Guido van Rossum 80dd9b6672 Subtle change to hex/oct formatting so the largest negative number
does not receive a minus sign.
1997-01-10 17:39:30 +00:00
Guido van Rossum 541cdd84ac Fix overflow test for multiply to catch some cases it missed.
Added warning about dependency of float/complex hash on int hash.
1997-01-06 22:53:20 +00:00
Guido van Rossum 9478dd40c2 Fix core dump from pow(x,y,0).
Make gcc -Wall happy.
1996-12-06 20:14:43 +00:00
Guido van Rossum d266eb460e New permission notice, includes CNRI. 1996-10-25 14:44:06 +00:00
Guido van Rossum c206c766dd fix memory leak and null pointer dereference 1995-01-10 15:23:19 +00:00
Guido van Rossum 6610ad9d6b Added 1995 to copyright message.
floatobject.c: fix hash().
methodobject.c: support METH_FREENAME flag bit.
1995-01-04 19:07:38 +00:00
Guido van Rossum d7047b395e Lots of minor changes. Note for mappingobject.c: the hash table pointer
can now be NULL.
1995-01-02 19:07:15 +00:00
Guido van Rossum bf8c0e336f mods by Andrew Kuchling to implement
pow(x,y,z) == pow(x,y)%z, but without incurring overflow
Correct problems found by THINK C 6.0
1994-08-29 12:48:32 +00:00
Guido van Rossum 2e1d433e43 Added getmaxint() so sys can initialize sys.maxint.
Added Makefile.in.
1993-12-24 10:22:45 +00:00
Guido van Rossum b376a4ad18 * timemodule.c: Add hack for Solaris 2.
* posixmodule.c: don't prototype getcwd() -- it's not portable...
* mappingobject.c: double-check validity of last_name_char in
  dict{lookup,insert,remove}.
* arraymodule.c: need memmove only for non-STDC Suns.
* Makefile: comment out HTML_LIBS and XT_USE by default
* pythonmain.c: don't prototype getopt() -- it's not standardized
* socketmodule.c: cast flags arg to {get,set}sockopt() and addrbuf arg to
  recvfrom() to (ANY*).
* pythonrun.c (initsigs): fix prototype, make it static
* intobject.c (LONG_BIT): only #define it if not already defined
* classobject.[ch]: remove all references to unused instance_convert()
* mappingobject.c (getmappingsize): Don't return NULL in int function.
1993-11-23 17:53:17 +00:00
Guido van Rossum 72481a3497 Changes to make range checks portable to 64-bit machines. 1993-10-26 15:21:51 +00:00
Sjoerd Mullender 842d2ccdcd intobject.c: Save references to small integers, so that they can be
shared.  The default is to save references to the integers in
	the range -1..99.  The lower limit can be set by defining
	NSMALLNEGINTS (absolute value of smallest integer to be saved)
	and NSMALLPOSINTS (1 more than the largest integer to be
	saved).
tupleobject.c: Save a reference to the empty tuple to be returned
	whenever a tuple of size 0 is requested.  Tuples of size 1
	upto, but not including, MAXSAVESIZE (default 20) are put in
	free lists when deallocated.  When MAXSAVESIZE equals 1, only
	share references to the empty tuple, when MAXSAVESIZE equals
	0, don't include the code at all and revert to the old
	behavior.
object.c: Print some more statistics when COUNT_ALLOCS is defined.
1993-10-15 16:18:48 +00:00
Sjoerd Mullender a9c3c22c33 * Extended X interface: pixmap objects, colormap objects visual objects,
image objects, and lots of new methods.
* Added counting of allocations and deallocations of builtin types if
  COUNT_ALLOCS is defined.  Had to move calls to NEWREF down in some
  files.
* Bug fix in sorting lists.
1993-10-11 12:54:31 +00:00
Guido van Rossum 9575a44575 * Microscopic corrections to make things compile on the Cray APP.
* Removed one use of $> in Makefile and warned about others.
  Added configurable lines in Makefile to change CC and AR.
1993-04-07 14:06:14 +00:00
Guido van Rossum 9bfef44d97 * Changed all copyright messages to include 1993.
* Stubs for faster implementation of local variables (not yet finished)
* Added function name to code object.  Print it for code and function
  objects.  THIS MAKES THE .PYC FILE FORMAT INCOMPATIBLE (the version
  number has changed accordingly)
* Print address of self for built-in methods
* New internal functions getattro and setattro (getattr/setattr with
  string object arg)
* Replaced "dictobject" with more powerful "mappingobject"
* New per-type functio tp_hash to implement arbitrary object hashing,
  and hashobject() to interface to it
* Added built-in functions hash(v) and hasattr(v, 'name')
* classobject: made some functions static that accidentally weren't;
  added __hash__ special instance method to implement hash()
* Added proper comparison for built-in methods and functions
1993-03-29 10:43:31 +00:00
Guido van Rossum e537240c25 * Changed many files to use mkvalue() instead of newtupleobject().
* Fixcprt.py: added [-y file] option, do only files younger than file.
* modsupport.[ch]: added vmkvalue().
* intobject.c: use mkvalue().
* stringobject.c: added "formatstring"; renamed string* to string_*;
  ceval.c: call formatstring for string % value.
* longobject.c: close memory leak in divmod.
* parsetok.c: set result node to NULL when returning an error.
1993-03-16 12:15:04 +00:00
Guido van Rossum 1899c2e055 Made builtins int(), long(), float(), oct() and hex() more generic. 1992-09-12 11:09:23 +00:00
Guido van Rossum bab9d03855 Copyright for 1992 added 1992-04-05 14:26:55 +00:00
Guido van Rossum 719f5fa86a lint fix 1992-03-27 17:31:02 +00:00
Guido van Rossum 2b16a6feff Make / and % do the same as divmod. 1992-01-19 16:28:51 +00:00
Guido van Rossum f3b351f140 Different shift implementation. 1992-01-14 18:33:22 +00:00
Guido van Rossum 3a62845094 Improved exceptions. 1991-12-10 13:57:36 +00:00
Guido van Rossum 7928cd7636 Added shift and mask ops. 1991-10-24 14:59:31 +00:00
Guido van Rossum 909336104b printobject now returns an error code 1991-06-07 16:10:43 +00:00
Guido van Rossum 0bff015ac3 Added nonzero test 1991-05-14 12:05:32 +00:00
Guido van Rossum 0046695d0c Added divmod and abs, fixed negative powers 1991-05-05 20:08:27 +00:00
Guido van Rossum f70e43a073 Added copyright notice. 1991-02-19 12:39:46 +00:00
Guido van Rossum 3f5da24ea3 "Compiling" version 1990-12-20 15:06:42 +00:00
Guido van Rossum abbda16f58 Fix zero division checks: return if it occurs! 1990-10-26 14:58:41 +00:00
Guido van Rossum 5c52b6a75a CHanged errors somewhat. 1990-10-21 22:11:03 +00:00
Guido van Rossum 165e67edae New error handling. 1990-10-14 20:02:26 +00:00
Guido van Rossum 85a5fbbdfe Initial revision 1990-10-14 12:07:46 +00:00