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cpython/Objects
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Tim Peters 8383915031
GH-116939: Rewrite binarysort() (#116940) 
Rewrote binarysort() for clarity.

Also changed the signature to be more coherent (it was mixing sortslice with raw pointers).

No change in method or functionality. However, I left some experiments in, disabled for now
via `#if` tricks. Since this code was first written, some kinds of comparisons have gotten
enormously faster (like for lists of floats), which changes the tradeoffs.

For example, plain insertion sort's simpler innermost loop and highly predictable branches
leave it very competitive (even beating, by a bit) binary insertion when comparisons are
very cheap, despite that it can do many more compares. And it wins big on runs that
are already sorted (moving the next one in takes only 1 compare then).

So I left code for a plain insertion sort, to make future experimenting easier.

Also made the maximum value of minrun a `#define` (``MAX_MINRUN`) to make
experimenting with that easier too.

And another bit of `#if``-disabled code rewrites binary insertion's innermost loop to
remove its unpredictable branch. Surprisingly, this doesn't really seem to help
overall. I'm unclear on why not. It certainly adds more instructions, but they're very
simple, and it's hard to be believe they cost as much as a branch miss.
2024-03-21 22:27:25 -05:00
..
clinic gh-116621: Set manual critical section for list.extend (gh-116657) 2024-03-13 07:28:23 +09:00
mimalloc gh-115103: Delay reuse of mimalloc pages that store PyObjects (#115435) 2024-03-06 09:42:11 -05:00
stringlib gh-110964: Remove private _PyArg functions (#110966) 2023-10-17 14:30:31 +02:00
abstract.c gh-116316: Fix typo in UNARY_FUNC(PyNumber_Positive) macros (GH-116317) 2024-03-04 17:57:01 +00:00
boolobject.c gh-111999: Add signatures and improve docstrings for builtins (GH-112000) 2023-11-13 09:13:49 +02:00
bytearrayobject.c gh-115323: Add meaningful error message for using bytearray.extend with str (#115332) 2024-02-24 18:34:45 -05:00
bytes_methods.c gh-104922: remove PY_SSIZE_T_CLEAN (#106315) 2023-07-02 15:07:46 +09:00
bytesobject.c gh-108767: Replace ctype.h functions with pyctype.h functions (#108772) 2023-09-01 18:36:53 +02:00
call.c gh-106320: Remove _PyFunction_Vectorcall() API (#107071) 2023-07-22 21:44:33 +00:00
capsule.c gh-108240: Add pycore_capsule.h internal header file (#108596) 2023-08-29 01:20:02 +00:00
cellobject.c gh-110964: Remove private _PyArg functions (#110966) 2023-10-17 14:30:31 +02:00
classobject.c gh-113157 gh-89519: Fix method descriptors (gh-113233) 2023-12-21 16:08:35 -06:00
codeobject.c gh-108716:: Remove _PyStaticCode_Init/Fini (#117141) 2024-03-22 01:27:48 +00:00
complexobject.c gh-109598: make PyComplex_RealAsDouble/ImagAsDouble use __complex__ (GH-109647) 2024-01-15 16:04:17 +01:00
descrobject.c gh-101860: Expose __name__ on property (GH-101876) 2024-02-20 17:14:34 +02:00
dictnotes.txt bpo-46845: Reduce dict size when all keys are Unicode (GH-31564) 2022-03-02 08:09:28 +09:00
dictobject.c gh-112075: Enable freeing with qsbr and fallback to lock on key changed (GH-116336) 2024-03-05 09:08:18 +00:00
enumobject.c gh-106320: Create pycore_modsupport.h header file (#106355) 2023-07-03 09:39:11 +00:00
exception_handling_notes.txt GH-105848: Simplify the arrangement of CALL's stack (GH-107788) 2023-08-09 18:19:39 +00:00
exceptions.c gh-114570: Add PythonFinalizationError exception (#115352) 2024-02-14 23:35:06 +01:00
fileobject.c gh-82626: Emit a warning when bool is used as a file descriptor (GH-111275) 2024-02-05 22:51:11 +02:00
floatobject.c gh-116714: Handle errors correctly in PyFloat_GetInfo (#116715) 2024-03-13 12:38:03 +00:00
frame_layout.md gh-109094: replace frame->prev_instr by frame->instr_ptr (#109095) 2023-10-26 13:43:10 +00:00
frameobject.c gh-115756: make PyCode_GetFirstFree an unstable API (GH-115781) 2024-03-19 09:20:38 +00:00
funcobject.c gh-117045: Add code object to function version cache (#117028) 2024-03-21 12:37:41 -07:00
genericaliasobject.c gh-110964: Remove private _PyArg functions (#110966) 2023-10-17 14:30:31 +02:00
genobject.c gh-111968: Split _Py_async_gen_asend_freelist out of _Py_async_gen_fr… (gh-115546) 2024-02-17 10:03:10 +09:00
iterobject.c gh-106320: Remove private _PyEval function (#108433) 2023-08-24 20:25:22 +02:00
listobject.c GH-116939: Rewrite binarysort() (#116940) 2024-03-21 22:27:25 -05:00
listsort.txt GH-116939: Rewrite binarysort() (#116940) 2024-03-21 22:27:25 -05:00
lnotab_notes.txt Document the co_lines method on code objects (#113682) 2024-01-03 19:29:24 +00:00
locations.md GH-88116: Use a compact format to represent end line and column offsets. (GH-91666) 2022-04-21 16:10:37 +01:00
longobject.c gh-110819: Fix ‘kind’ may be used uninitialized warning in longobject (#116599) 2024-03-12 13:50:06 +03:00
memoryobject.c gh-111178: Avoid calling functions from incompatible pointer types in memoryobject.c (GH-112863) 2023-12-11 17:43:07 +01:00
methodobject.c gh-114626: add PyCFunctionFast and PyCFunctionFastWithKeywords (GH-114627) 2024-02-15 11:05:20 +01:00
moduleobject.c gh-116437: Use new C API PyDict_Pop() to simplify the code (GH-116438) 2024-03-07 11:21:08 +02:00
namespaceobject.c gh-110964: Remove private _PyArg functions (#110966) 2023-10-17 14:30:31 +02:00
object.c gh-76785: Drop PyInterpreterID_Type (gh-117101) 2024-03-21 17:15:02 +00:00
object_layout.md gh-106293: Fix typos in Objects/object_layout.md (#106294) 2024-01-16 23:11:15 +00:00
object_layout_312.gv GH-96068: Document object layout (GH-96069) 2022-08-23 13:55:43 +01:00
object_layout_312.png GH-96068: Document object layout (GH-96069) 2022-08-23 13:55:43 +01:00
object_layout_full_312.gv GH-96068: Document object layout (GH-96069) 2022-08-23 13:55:43 +01:00
object_layout_full_312.png GH-96068: Document object layout (GH-96069) 2022-08-23 13:55:43 +01:00
obmalloc.c gh-112075: Support freeing object memory via QSBR (#116344) 2024-03-08 09:56:36 -08:00
odictobject.c gh-112075: Add critical sections for most dict APIs (#114508) 2024-02-06 14:03:43 -08:00
picklebufobject.c gh-104922: remove PY_SSIZE_T_CLEAN (#106315) 2023-07-02 15:07:46 +09:00
rangeobject.c gh-106320: Remove private _PyEval function (#108433) 2023-08-24 20:25:22 +02:00
README Issue #18093: Factor out the programs that embed the runtime 2014-07-25 21:52:14 +10:00
setobject.c gh-112069: Make sets thread-safe with the GIL disabled (#113800) 2024-03-08 16:25:34 -05:00
sliceobject.c gh-111968: Rename freelist related struct names to Eric's suggestion (gh-115329) 2024-02-14 00:32:51 +00:00
structseq.c GH-108362: Incremental Cycle GC (GH-116206) 2024-03-20 08:54:42 +00:00
tupleobject.c gh-116381: Remove bad specializations, add fail stats (GH-116464) 2024-03-08 00:21:21 +08:00
typeobject.c gh-115756: make PyCode_GetFirstFree an unstable API (GH-115781) 2024-03-19 09:20:38 +00:00
typeslots.inc bpo-41073: PyType_GetSlot() can now accept static types. (GH-21931) 2020-11-10 12:53:46 -08:00
typeslots.py bpo-41073: PyType_GetSlot() can now accept static types. (GH-21931) 2020-11-10 12:53:46 -08:00
typevarobject.c gh-110864: TypeVar constructor: Partially revert gh-110784, constraints cannot be NULL (#110922) 2023-10-16 15:01:04 +00:00
unicodectype.c bpo-46670: Remove unused macros in the Objects directory (GH-31193) 2022-02-07 16:21:41 +01:00
unicodeobject.c gh-113964: Don't prevent new threads until all non-daemon threads exit (#116677) 2024-03-19 14:40:20 -04:00
unicodetype_db.h gh-96954: Fix make regen-unicodedata in out-of-tree builds (#112118) 2023-11-15 16:42:17 +00:00
unionobject.c gh-108511: Add C API functions which do not silently ignore errors (GH-109025) 2023-09-17 14:23:31 +03:00
weakrefobject.c gh-111926: Simplify proxy creation logic (#116844) 2024-03-15 09:58:40 -04:00

README 

Source files for various builtin objects