cpython-lru_cache-weakref: Python/pystrtod.c history

Re #18521: remove assignments of variables that are immediately reassigned.

Mon, 14 Oct 2013 06:51:46 +0200

Re #18521: remove assignments of variables that are immediately reassigned.

Issue #9566: pystrtod.c: Fix a compiler warnings on Windows x64

Mon, 24 Jun 2013 23:37:40 +0200

Issue #9566: pystrtod.c: Fix a compiler warnings on Windows x64

Issue #14521: Make result of float('nan') and float('-nan') more consistent across platforms. Further, don't rely on Py_HUGE_VAL for float('inf').

Sun, 29 Apr 2012 15:31:56 +0100

Issue #14521: Make result of float('nan') and float('-nan') more consistent across platforms. Further, don't rely on Py_HUGE_VAL for float('inf').

Dummy-merge 3.2 branch into default branch.

Sat, 05 Mar 2011 15:16:28 +0100

Dummy-merge 3.2 branch into default branch.

Issue #8914: fix various warnings from the Clang static analyzer v254.

Tue, 22 Feb 2011 20:15:44 +0000

Issue #8914: fix various warnings from the Clang static analyzer v254.

Dummy-merge 3.1 branch into 3.2 branch.

Sat, 05 Mar 2011 15:15:55 +0100

Dummy-merge 3.1 branch into 3.2 branch.

Recorded merge of revisions 81029 via svnmerge from

Sun, 09 May 2010 15:52:27 +0000

Recorded merge of revisions 81029 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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r81029 | antoine.pitrou | 2010-05-09 16:46:46 +0200 (dim., 09 mai 2010) | 3 lines

Untabify C files. Will watch buildbots.
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Issue #5988: Delete deprecated functions PyOS_ascii_formatd, PyOS_ascii_strtod, and PyOS_ascii_atof.

Mon, 22 Feb 2010 14:58:30 +0000

Issue #5988: Delete deprecated functions PyOS_ascii_formatd, PyOS_ascii_strtod, and PyOS_ascii_atof.

Merged revisions 77691,77698,77713-77714 via svnmerge from

Sun, 24 Jan 2010 10:16:29 +0000

Merged revisions 77691,77698,77713-77714 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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r77691 | mark.dickinson | 2010-01-22 16:18:09 +0000 (Fri, 22 Jan 2010) | 1 line

Correct typo in comment.
........
r77698 | mark.dickinson | 2010-01-22 17:04:07 +0000 (Fri, 22 Jan 2010) | 3 lines

Issue #7743: Fix a potential incorrect rounding bug in dtoa.c (2nd bug
in issue 7743).
........
r77713 | mark.dickinson | 2010-01-23 20:48:56 +0000 (Sat, 23 Jan 2010) | 3 lines

Issue #7743: Add checks for zero inputs to the lshift and mult functions;
this fixes the first bug described in issue #7743.
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r77714 | mark.dickinson | 2010-01-23 21:25:53 +0000 (Sat, 23 Jan 2010) | 1 line

dtoa.c fix from upstream that fixes incorrectly rounded results for certain subnormals that are also halfway cases.
........

Move some comments to more appropriate places

Mon, 26 Oct 2009 14:36:29 +0000

Move some comments to more appropriate places

Revert temporary debugging commits (r82752, r82754).

Fri, 09 Jul 2010 22:12:52 +0000

Revert temporary debugging commits (r82752, r82754).

Another temporary checkin to diagnose test_float failure on 3.1 Ubuntu buildbot.

Fri, 09 Jul 2010 20:10:37 +0000

Another temporary checkin to diagnose test_float failure on 3.1 Ubuntu buildbot.

Temporary checkin to try to diagnose i386 Ubuntu buildbot failure.

Fri, 09 Jul 2010 19:43:26 +0000

Temporary checkin to try to diagnose i386 Ubuntu buildbot failure.

Recorded merge of revisions 81032 via svnmerge from

Sun, 09 May 2010 16:14:21 +0000

Recorded merge of revisions 81032 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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r81032 | antoine.pitrou | 2010-05-09 17:52:27 +0200 (dim., 09 mai 2010) | 9 lines

Recorded merge of revisions 81029 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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r81029 | antoine.pitrou | 2010-05-09 16:46:46 +0200 (dim., 09 mai 2010) | 3 lines

Untabify C files. Will watch buildbots.
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Merged revisions 77722 via svnmerge from

Sun, 24 Jan 2010 10:16:59 +0000

Merged revisions 77722 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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r77722 | mark.dickinson | 2010-01-24 10:16:29 +0000 (Sun, 24 Jan 2010) | 23 lines

Merged revisions 77691,77698,77713-77714 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
r77691 | mark.dickinson | 2010-01-22 16:18:09 +0000 (Fri, 22 Jan 2010) | 1 line

Correct typo in comment.
........
r77698 | mark.dickinson | 2010-01-22 17:04:07 +0000 (Fri, 22 Jan 2010) | 3 lines

Issue #7743: Fix a potential incorrect rounding bug in dtoa.c (2nd bug
in issue 7743).
........
r77713 | mark.dickinson | 2010-01-23 20:48:56 +0000 (Sat, 23 Jan 2010) | 3 lines

Issue #7743: Add checks for zero inputs to the lshift and mult functions;
this fixes the first bug described in issue #7743.
........
r77714 | mark.dickinson | 2010-01-23 21:25:53 +0000 (Sat, 23 Jan 2010) | 1 line

dtoa.c fix from upstream that fixes incorrectly rounded results for certain subnormals that are also halfway cases.
........
................

Refactor to remove duplicated nan/inf parsing code in

Wed, 20 May 2009 22:05:25 +0000

Refactor to remove duplicated nan/inf parsing code in
pystrtod.c, floatobject.c and dtoa.c.

Issue #5920: Changed format.float and complex.float to use a precision of 12 when using the empty presentation type. This more closely matches str()'s behavior and reduces surprises when adding alignment flags to an empty format string. Patch by Mark Dickinson.

Tue, 05 May 2009 14:04:18 +0000

Issue #5920: Changed format.__float__ and complex.__float__ to use a precision of 12 when using the empty presentation type. This more closely matches str()'s behavior and reduces surprises when adding alignment flags to an empty format string. Patch by Mark Dickinson.

Merged revisions 72257 via svnmerge from

Sun, 03 May 2009 22:36:01 +0000

Merged revisions 72257 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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r72257 | mark.dickinson | 2009-05-03 23:33:34 +0100 (Sun, 03 May 2009) | 2 lines

Don't use PyOS_strnicmp for NaN and Inf detection: it's locale-aware.
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Issue #5914: Add new C-API function PyOS_string_to_double, to complement

Sun, 03 May 2009 20:33:40 +0000

Issue #5914: Add new C-API function PyOS_string_to_double, to complement
PyOS_double_to_string, and deprecate PyOS_ascii_strtod and PyOS_ascii_atof.

Issue #5859: Remove use of fixed-length buffers for float formatting

Fri, 01 May 2009 11:42:00 +0000

Issue #5859: Remove use of fixed-length buffers for float formatting
in unicodeobject.c and the fallback version of PyOS_double_to_string.
As a result, operations like '%.120e' % 12.34 no longer raise an
exception.

Issue #5864: Fix problem with empty code formatting for floats,

Wed, 29 Apr 2009 18:47:07 +0000

Issue #5864: Fix problem with empty code formatting for floats,
where a bogus trailing zero could be added.

Merged revisions 72040 via svnmerge from

Mon, 27 Apr 2009 20:39:49 +0000

Merged revisions 72040 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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r72040 | eric.smith | 2009-04-27 15:04:37 -0400 (Mon, 27 Apr 2009) | 1 line

Issue #5793: rationalize isdigit / isalpha / tolower, etc. Will port to py3k. Should fix Windows buildbot errors.
........

Issue #5835: Deprecate PyOS_ascii_formatd.

Sun, 26 Apr 2009 21:35:14 +0000

Issue #5835: Deprecate PyOS_ascii_formatd.

Merged revisions 71976 via svnmerge from

Sun, 26 Apr 2009 20:02:24 +0000

Merged revisions 71976 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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r71976 | mark.dickinson | 2009-04-26 20:54:55 +0100 (Sun, 26 Apr 2009) | 2 lines

Fix typo in function name
........

Internal plumbing changes for float parsing:

Sun, 26 Apr 2009 15:30:47 +0000

Internal plumbing changes for float parsing:
- check for nans and infs within PyOS_ascii_strtod
- simplify parsing in PyFloat_FromString, and handle out-of-memory
errors properly

Issue #5816: Simplify code for parsing and printing of complex numbers.

Thu, 23 Apr 2009 19:14:16 +0000

Issue #5816: Simplify code for parsing and printing of complex numbers.
nans and infs are no longer given special treatment; as a result,
repr(complex(z)) recovers z for any complex number z.

Issue 5780: Fix test_float failures for legacy style float repr.

Fri, 17 Apr 2009 22:40:53 +0000

Issue 5780: Fix test_float failures for legacy style float repr.

Simplify PyOS_double_to_string.

Thu, 16 Apr 2009 22:08:31 +0000

Simplify PyOS_double_to_string.

The other half of Issue #1580: use short float repr where possible.

Thu, 16 Apr 2009 20:16:10 +0000

The other half of Issue #1580: use short float repr where possible.

Addresses the float -> string conversion, using David Gay's code which
was added in Mark Dickinson's checkin r71663.

Also addresses these, which are intertwined with the short repr
changes:

- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'
- Issue #5515: 'n' formatting with commas no longer works poorly
with leading zeros.
- PEP 378 Format Specifier for Thousands Separator: implemented
for floats.

Added ',' thousands grouping to int.format. See PEP 378.

Fri, 03 Apr 2009 14:45:06 +0000

Added ',' thousands grouping to int.__format__. See PEP 378.

This is incomplete, but I want to get some version into the next alpha. I am still working on:
Documentation.
More tests.
Implement for floats.

In addition, there's an existing bug with 'n' formatting that carries forward to thousands grouping (issue 5515).

Dummy-merge 2.6 branch into 2.7 branch.

Sat, 05 Mar 2011 15:15:07 +0100

Dummy-merge 2.6 branch into 2.7 branch.

Untabify C files. Will watch buildbots.

Sun, 09 May 2010 14:46:46 +0000

Untabify C files. Will watch buildbots.

Revert a change where an expression is not needed now, but could be in the future.

Wed, 05 May 2010 23:11:08 +0000

Revert a change where an expression is not needed now, but could be in the future.

Remove an unnecessary variable assignment.

Wed, 05 May 2010 20:35:24 +0000

Remove an unnecessary variable assignment.

Found using Clang's static analyzer.

Correct typo in comment.

Fri, 22 Jan 2010 16:18:09 +0000

Correct typo in comment.

Deprecate PyOS_ascii_strtod and PyOS_ascii_atof, and document the replacement function PyOS_string_to_double.

Sat, 31 Oct 2009 09:42:39 +0000

Deprecate PyOS_ascii_strtod and PyOS_ascii_atof, and document the replacement function PyOS_string_to_double.

Finished removing _PyOS_double_to_string, as mentioned in issue 7117.

Mon, 26 Oct 2009 17:46:17 +0000

Finished removing _PyOS_double_to_string, as mentioned in issue 7117.

Issue #7117 (backport py3k float repr) continued:

Mon, 26 Oct 2009 15:39:50 +0000

Issue #7117 (backport py3k float repr) continued:
Backport pystrtod.c from py3k.

Issue #5920: Changed format.float and complex.float to use a precision of 12 when using the empty presentation type. This more closely matches str()'s behavior and reduces surprises when adding alignment flags to an empty format string. Patch by Mark Dickinson.

Tue, 05 May 2009 18:26:08 +0000

Don't use PyOS_strnicmp for NaN and Inf detection: it's locale-aware.

Sun, 03 May 2009 22:33:34 +0000

Don't use PyOS_strnicmp for NaN and Inf detection: it's locale-aware.

Eliminate some locale-dependent calls to isspace and tolower.

Sun, 03 May 2009 20:59:48 +0000

Eliminate some locale-dependent calls to isspace and tolower.

Remove format_float and use _PyOS_double_to_string instead.

Wed, 29 Apr 2009 21:56:53 +0000

Remove format_float and use _PyOS_double_to_string instead.

Issue #5864: format(1234.5, '.4') gives misleading result

Wed, 29 Apr 2009 20:41:00 +0000

Issue #5864: format(1234.5, '.4') gives misleading result
(Backport of r72109 from py3k.)

Silence warning on Windows.

Tue, 28 Apr 2009 07:33:09 +0000

Silence warning on Windows.

Issue #5793: rationalize isdigit / isalpha / tolower, etc. Will port to py3k. Should fix Windows buildbot errors.

Mon, 27 Apr 2009 19:04:37 +0000

Issue #5793: rationalize isdigit / isalpha / tolower, etc. Will port to py3k. Should fix Windows buildbot errors.

Fix typo in function name

Sun, 26 Apr 2009 19:54:55 +0000

Fix typo in function name

Backport r71967 changes from py3k to trunk.

Sun, 26 Apr 2009 16:04:05 +0000

Backport r71967 changes from py3k to trunk.
(Internal plumbing changes for float parsing.)

Issue #5835, deprecate PyOS_ascii_formatd.

Sat, 25 Apr 2009 21:40:15 +0000

Issue #5835, deprecate PyOS_ascii_formatd.

If anyone wants to clean up the documentation, feel free. It's my first documentation foray, and it's not that great.

Will port to py3k with a different strategy.

Issue #5816:

Fri, 24 Apr 2009 12:46:53 +0000

Issue #5816:
- simplify parsing and printing of complex numbers
- make complex(repr(z)) round-tripping work for complex
numbers involving nans, infs, or negative zeros
- don't accept some of the stranger complex strings
that were previously allowed---e.g., complex('1..1j')

Backport of some of the work in r71665 to trunk. This reworks much of

Wed, 22 Apr 2009 13:29:05 +0000

Backport of some of the work in r71665 to trunk. This reworks much of
int, long, and float __format__(), and it keeps their implementation
in sync with py3k.

Also added PyOS_double_to_string. This is the "fallback" version
that's also available in trunk, and should be kept in sync with that
code. I'll add an issue to document PyOS_double_to_string in the C
API.

There are many internal cleanups. Externally visible changes include:

- Implement PEP 378, Format Specifier for Thousands Separator, for
floats, ints, and longs.

- Issue #5515: 'n' formatting for ints, longs, and floats handles
leading zero formatting poorly.

- Issue #5772: For float.__format__, don't add a trailing ".0" if
we're using no type code and we have an exponent.

Recorded merge of revisions 81029 via svnmerge from

Sun, 09 May 2010 15:15:40 +0000

Merged revisions 71976 via svnmerge from

Sun, 26 Apr 2009 19:59:00 +0000

Fix issue 3411: default float format spec fails on negative numbers.

Sat, 19 Jul 2008 00:24:05 +0000

Fix issue 3411: default float format spec fails on negative numbers.

Modified interface to _Py_[String|Unicode]InsertThousandsGrouping, in anticipation of fixing issue 3140.

Tue, 24 Jun 2008 00:42:10 +0000

Modified interface to _Py_[String|Unicode]InsertThousandsGrouping, in anticipation of fixing issue 3140.

This reverts r63675 based on the discussion in this thread:

Mon, 09 Jun 2008 04:58:54 +0000

This reverts r63675 based on the discussion in this thread:

http://mail.python.org/pipermail/python-dev/2008-June/079988.html

Python 2.6 should stick with PyString_* in its codebase. The PyBytes_* names
in the spirit of 3.0 are available via a #define only. See the email thread.

Renamed PyString to PyBytes

Mon, 26 May 2008 12:51:38 +0000

Renamed PyString to PyBytes

Addresses issue 2802: 'n' formatting for integers.

Sun, 11 May 2008 19:52:48 +0000

Addresses issue 2802: 'n' formatting for integers.

Adds 'n' as a format specifier for integers, to mirror the same
specifier which is already available for floats. 'n' is the same as
'd', but inserts the current locale-specific thousands grouping.

I added this as a stringlib function, but it's only used by str type,
not unicode. This is because of an implementation detail in
unicode.format(), which does its own str->unicode conversion. But the
unicode version will be needed in 3.0, and it may be needed by other
code eventually in 2.6 (maybe decimal?), so I left it as a stringlib
implementation. As long as the unicode version isn't instantiated,
there's no overhead for this.

Issue 2526, float.format 'n' specifier does not support thousands grouping.

Wed, 30 Apr 2008 01:09:30 +0000

Issue 2526, float.__format__ 'n' specifier does not support thousands grouping.

Implemented grouping, with tests.
Cleaned up PyOS_ascii_formatd by breaking reformatting into smaller functions.

Reformated lines > 79 chars.

Mon, 17 Mar 2008 12:14:29 +0000

Reformated lines > 79 chars.
Deleted unused macro ISXDIGIT.

Issue 2264: empty float presentation type needs to have at least one digit past the decimal point.

Mon, 17 Mar 2008 11:01:01 +0000

Issue 2264: empty float presentation type needs to have at least one digit past the decimal point.

Added "Z" format_char to PyOS_ascii_formatd to support empty float presentation type.
Renamed buf_size in PyOS_ascii_formatd to more accurately reflect it's meaning.
Modified format.__float__ to use the new "Z" format as the default.
Added test cases.