Commit Graph

74 Commits

Author SHA1 Message Date
Fred Drake b6a9ada757 Michael Hudson <mwh21@cam.ac.uk>:
Removed PyErr_BadArgument() calls and replaced them with more useful
error messages.
2000-06-01 03:12:13 +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
Jeremy Hylton 37b1a26c89 add list_contains and tuplecontains: efficient implementations of tp_contains 2000-04-27 21:41:03 +00:00
Guido van Rossum d724b23420 Christian Tismer's "trashcan" patch:
Added wrapping macros to dictobject.c, listobject.c, tupleobject.c,
frameobject.c, traceback.c that safely prevends core dumps
on stack overflow. Macros and functions in object.c, object.h.
The method is an "elevator destructor" that turns cascading
deletes into tail recursive behavior when some limit is hit.
2000-03-13 16:01:29 +00:00
Guido van Rossum ef93b87f1c Added Christian Tismer's patch to allow list.append(a,b,c) back --
with a twist: you have to define NO_STRICT_LIST_APPEND manually
to enable multi-arg append().
2000-03-13 15:41:59 +00:00
Guido van Rossum c00a938be8 OKOK, Greg's right, I should've used the :name option in the argument
format strings.
2000-02-24 21:48:29 +00:00
Guido van Rossum 4aa24f9979 Made all list methods use PyArg_ParseTuple(), for more accurate
diagnostics.

*** INCOMPATIBLE CHANGE: This changes append(), remove(), index(), and
*** count() to require exactly one argument -- previously, multiple
*** arguments were silently assumed to be a tuple.
2000-02-24 15:23:03 +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
Guido van Rossum fa71701d46 When deallocating a list, DECREF the items from the end back to the start. 1999-06-09 15:19:34 +00:00
Guido van Rossum 9bcd1d7931 Improve text of some error messages, as suggested by Sean Reifschneider. 1999-04-19 17:44:39 +00:00
Guido van Rossum 3aa23fdd47 Jim Ahlstrom patch: cutoff should be a long for machines with 16-bit
ints.  (In theory, other variables should be widened to long as well,
but this won't ever be needed, since the len of a list is still an
int.)
1999-01-14 19:01:53 +00:00
Barry Warsaw dedf6d6804 listextend(): New method which implements L.extend(L2). 1998-10-09 16:37:25 +00:00
Guido van Rossum 2ccaf6f2f9 Remove a redundant check from list_slice() and list_ass_slice().
Noted by Greg Stein.
1998-10-07 13:24:13 +00:00
Guido van Rossum 3dd7f3fef0 Added doc strings for methods and a new pop() method. 1998-06-30 15:36:32 +00:00
Guido van Rossum 4281258b5f Minor cleanup by Tim after my changes:
+ Took the "list" argument out of the other functions that no longer need
it.  This speeds things up a little more.

+ Small comment changes in accord with that.

+ Exploited the now-safe ability to cache values in the partitioning loop.
Makes no timing difference on my flavor of Pentium, but this machine ran out
of registers 12 iterations ago.  It should yield a small speedup on a RISC
machine, and not hurt in any case.
1998-06-17 14:15:44 +00:00
Guido van Rossum 4c4e7df755 Tim's latest, with some of my changes (also a TP suggestion) added:
instead of testing whether the list changed size after each
comparison, temporarily set the type of the list to an immutable list
type.  This should allow continued use of the list for legitimate
purposes but disallows all operations that can change it in any way.
(Changes to the internals of list items are not caught, of cause;
that's not possible to detect, and it's not necessary to protect the
sort code, either.)
1998-06-16 15:18:28 +00:00
Guido van Rossum a119c0dd5e Tim's revision of the previous patch. He also added some sparts to
the median-of-three code to get a few percent back.
1998-05-29 17:56:32 +00:00
Guido van Rossum ae621ff7b7 Guard against changes in the list size during a compare or sort. 1998-05-28 20:18:46 +00:00
Guido van Rossum 9be628338d Tim's quicksort on May 25. 1998-05-26 15:06:32 +00:00
Guido van Rossum ed7adcff73 Tim's quicksort on May 13. 1998-05-13 21:21:24 +00:00
Guido van Rossum b7057640d1 Tim's quicksort on May 10. 1998-05-13 21:20:49 +00:00
Guido van Rossum e32907df67 Get rid of the unused ifdefed-out old sort code. 1998-04-28 17:54:03 +00:00
Guido van Rossum 82e6a8f80d Quicksort retuned by Tim Peters. 1998-04-28 13:17:56 +00:00
Guido van Rossum fb376dee55 Use Py_Repr{Enter,Leave} to display recursive lists in finite space.
(Jeremy will hardly recognize his patch :-)
1998-04-10 22:47:27 +00:00
Guido van Rossum 044b9dc1d7 Add back some safeguards on the index elements that were lost in the
last patch.  Dave Ascher found a case that dumps core without these:

def myComparison(x,y):
    return cmp(x%3,y%7)

z = range(12)
z.sort(myComparison)
1998-02-25 17:50:03 +00:00
Guido van Rossum 24e62e2c7c Modified quicksort by Raymund Galvin, after studying the GNU libg++
quicksort.  This should be much faster if there are lots of
duplicates, and otherwise at least as good.
1997-12-10 15:14:24 +00:00
Guido van Rossum a27d112213 Rename roundup() to roundupsize(), as there's a macro roundup() in the
sys/types.h header on many systems that may get pulled in (through
WANT_SIGFPE_HANDLER which pulls in signal.h).
1997-08-25 18:36:23 +00:00
Guido van Rossum 5d8123f34a Reordered list of methods to hopefully put the most frequently used
ones near the front.
1997-07-13 03:58:01 +00:00
Guido van Rossum c8b6df9004 PyObject_Compare can raise an exception now. 1997-05-23 00:06:51 +00:00
Guido van Rossum c0b618a2cc Quickly renamed the last directory. 1997-05-02 03:12:38 +00:00
Guido van Rossum 2095d24842 Tweaks to keep the Microsoft compiler quiet. 1997-04-09 19:41:24 +00:00
Guido van Rossum 19700b6a98 Add casts to CMPERROR macro to silence SunPro compiler warnings about
integer overflow in << operator.
1997-03-05 00:45:43 +00:00
Guido van Rossum cc15b42e59 Change comment about MINSIZE -- 10 is optimal for Python. 1996-12-16 03:32:39 +00:00
Guido van Rossum 3176bb1df2 Some more tuning of quicksort: use pointers instead of indexing. 1996-12-11 23:57:39 +00:00
Guido van Rossum 3f236dee3a Added new quicksort implementation, tailored to sorting arrays of
object pointers.  Should be a bit faster than the C library's qsort(),
and doesn't have the prohibition on recursion that Solaris qsort() has
in the threaded version of their C library.

Thanks to discussions with Tim Peters.
1996-12-10 23:55:39 +00:00
Guido van Rossum d266eb460e New permission notice, includes CNRI. 1996-10-25 14:44:06 +00:00
Guido van Rossum 929f1b83ea Use pre-created string objects for most common exceptions
(especially IndexError which is caught by 'for')
1996-08-09 20:51:27 +00:00
Guido van Rossum 1311e3ce73 args to call_object must be tuple or NULL 1995-07-12 02:22:06 +00:00
Guido van Rossum 5fe605889a a few peephole optimizations 1995-03-09 12:12:50 +00:00
Guido van Rossum 295d171650 explicitly init flags in methodlists 1995-02-19 15:55:19 +00:00
Guido van Rossum a46d51d9a4 round up list item counts to improve realloc performance 1995-01-26 22:59:43 +00:00
Jack Jansen 7874d1fe7e Fix NULL dereference in case of out-of-memory condition 1995-01-19 12:09:27 +00:00
Guido van Rossum b0fe3a9312 added reverselist; free recycling bin on error exit 1995-01-17 16:34:45 +00:00
Guido van Rossum ae7bf1a5e7 fix reentrancy bug in slice assignment 1995-01-17 10:21:11 +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 6cd2fe043b Correct problems found by THINK C 6.0 1994-08-29 12:45:32 +00:00
Guido van Rossum a3d78fb268 * posixmodule.c: added set{uid,gid}.
* {tuple,list,mapping,array}object.c: call printobject with 0 for flags
* compile.c (parsestr): use quote instead of '\'' at one crucial point
* arraymodule.c (array_getattr): Added __members__ attribute
1993-11-10 09:23:53 +00:00
Guido van Rossum dc4b93db70 * listobject.c (list_ass_slice): XDECREF instead of DECREF so
setlistslice() can be used to cut the unused part out of a freshly made
  slice (as done by bagof()).  [needed by the next mod!]
* structural changes to bagof(), map() etc.
1993-10-27 14:56:44 +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