Commit Graph

5 Commits

Author SHA1 Message Date
Christian Heimes fa26245a1c
bpo-45548: Remove _math.c workarounds for pre-C99 libm (GH-29179)
The :mod:`math` and :mod:`cmath` implementation now require a C99 compatible
``libm`` and no longer ship with workarounds for missing acosh, asinh,
expm1, and log1p functions.

The changeset also removes ``_math.c`` and moves the last remaining
workaround into ``_math.h``. This simplifies static builds with
``Modules/Setup`` and resolves symbol conflicts.

Co-authored-by: Mark Dickinson <mdickinson@enthought.com>
Co-authored-by: Brett Cannon <brett@python.org>
Signed-off-by: Christian Heimes <christian@python.org>
2021-10-25 01:25:27 -07:00
Victor Stinner bf9655854b Issue #28256: Cleanup _math.c
Only define fallback implementations when needed. It avoids producing deadcode
when the system provides required math functions.
2016-10-18 16:29:27 +02:00
Mark Dickinson 05d79e9abf Issue #15477: Add workaround for log1p(-0.0) on platforms where it's broken. 2012-08-18 12:24:30 +01:00
Mark Dickinson f371859a4f Merged revisions 76978 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r76978 | mark.dickinson | 2009-12-21 15:22:00 +0000 (Mon, 21 Dec 2009) | 3 lines

  Issue #7518:  Move substitute definitions of C99 math functions from
  pymath.c to Modules/_math.c.
........
2009-12-21 15:27:41 +00:00
Mark Dickinson 664b511c0a Merged revisions 76861 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r76861 | mark.dickinson | 2009-12-16 20:13:40 +0000 (Wed, 16 Dec 2009) | 3 lines

  Issue #3366: Add expm1 function to math module.  Thanks Eric Smith for
  testing on Windows.
........
2009-12-16 20:23:42 +00:00