- add double endianness detection to configure script
- add configure-time check to see whether we can use inline
assembly to get and set x87 control word in configure script
- add functions to get and set x87 control word in Python/pymath.c
- add pyport.h logic to determine whether it's safe to use the
short float repr or not
problems for binary distributions of Python in situations
where the build machine has SSE2 but the target machine
does not.
Therefore, don't enable SSE2 instructions automatically on x86.
- incorporate and adapt David Gay's dtoa and strtod
into the Python core
- on platforms where we can use Gay's code (almost
all!), repr(float) is based on the shortest
sequence of decimal digits that rounds correctly.
- add sys.float_repr_style attribute to indicate
whether we're using Gay's code or not
- add autoconf magic to detect and enable SSE2
instructions on x86/gcc
- slight change to repr and str: repr switches
to exponential notation at 1e16 instead of
1e17, str switches at 1e11 instead of 1e12
svn+ssh://pythondev@svn.python.org/python/trunk
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r69459 | mark.dickinson | 2009-02-09 14:18:43 +0000 (Mon, 09 Feb 2009) | 3 lines
Issue #4575: fix Py_IS_INFINITY macro to work correctly on x87 FPUs.
It now forces its argument to double before testing for infinity.
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svn+ssh://pythondev@svn.python.org/python/trunk
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r66552 | andrew.macintyre | 2008-09-23 00:10:54 +1000 (Tue, 23 Sep 2008) | 5 lines
should use macro'ed symbols not direct
Part of source_os2emx.patch in issue 3868
Reviewed by Amaury Forgeot d'Arc
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r66553 | andrew.macintyre | 2008-09-23 00:11:41 +1000 (Tue, 23 Sep 2008) | 5 lines
any platform without HAVE_LOG1P should have DBL_EPSILON in <float.h>
Part of source_os2emx.patch in issue 3868
Reviewed by Amaury Forgeot d'Arc
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svn+ssh://pythondev@svn.python.org/python/trunk
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r62380 | christian.heimes | 2008-04-19 01:13:07 +0200 (Sat, 19 Apr 2008) | 3 lines
I finally got the time to update and merge Mark's and my trunk-math branch. The patch is collaborated work of Mark Dickinson and me. It was mostly done a few months ago. The patch fixes a lot of loose ends and edge cases related to operations with NaN, INF, very small values and complex math.
The patch also adds acosh, asinh, atanh, log1p and copysign to all platforms. Finally it fixes differences between platforms like different results or exceptions for edge cases. Have fun :)
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r62382 | christian.heimes | 2008-04-19 01:40:40 +0200 (Sat, 19 Apr 2008) | 2 lines
Added new files to Windows project files
More Windows related fixes are coming soon
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r62383 | christian.heimes | 2008-04-19 01:49:11 +0200 (Sat, 19 Apr 2008) | 1 line
Stupid me. Py_RETURN_NAN should actually return something ...
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The patch also adds acosh, asinh, atanh, log1p and copysign to all platforms. Finally it fixes differences between platforms like different results or exceptions for edge cases. Have fun :)
Yury Selivanov
Antoine Pitrou
Mark Dickinson
Andrew MacIntyre
Christian Heimes