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| author | Christian Heimes <christian@python.org> | 2021-10-25 08:25:27 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-10-25 08:25:27 (GMT) |
| commit | fa26245a1c1aa938cce391348d6bd879da357522 (patch) | |
| tree | b193ebf766f3105a880ce8d8f7160b090b0c77b2 /Modules/cmathmodule.c | |
| parent | 51ed2c56a1852cd6b09c85ba81312dc9782772ce (diff) | |
| download | cpython-fa26245a1c1aa938cce391348d6bd879da357522.zip cpython-fa26245a1c1aa938cce391348d6bd879da357522.tar.gz cpython-fa26245a1c1aa938cce391348d6bd879da357522.tar.bz2 | |
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>
Diffstat (limited to 'Modules/cmathmodule.c')
| -rw-r--r-- | Modules/cmathmodule.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/Modules/cmathmodule.c b/Modules/cmathmodule.c index 0e0489c..281d393 100644 --- a/Modules/cmathmodule.c +++ b/Modules/cmathmodule.c @@ -8,11 +8,13 @@ #include "Python.h" #include "pycore_dtoa.h" -#include "_math.h" /* we need DBL_MAX, DBL_MIN, DBL_EPSILON, DBL_MANT_DIG and FLT_RADIX from float.h. We assume that FLT_RADIX is either 2 or 16. */ #include <float.h> +/* For _Py_log1p with workarounds for buggy handling of zeros. */ +#include "_math.h" + #include "clinic/cmathmodule.c.h" /*[clinic input] module cmath @@ -246,7 +248,7 @@ cmath_acos_impl(PyObject *module, Py_complex z) s2.imag = z.imag; s2 = cmath_sqrt_impl(module, s2); r.real = 2.*atan2(s1.real, s2.real); - r.imag = m_asinh(s2.real*s1.imag - s2.imag*s1.real); + r.imag = asinh(s2.real*s1.imag - s2.imag*s1.real); } errno = 0; return r; @@ -280,7 +282,7 @@ cmath_acosh_impl(PyObject *module, Py_complex z) s2.real = z.real + 1.; s2.imag = z.imag; s2 = cmath_sqrt_impl(module, s2); - r.real = m_asinh(s1.real*s2.real + s1.imag*s2.imag); + r.real = asinh(s1.real*s2.real + s1.imag*s2.imag); r.imag = 2.*atan2(s1.imag, s2.real); } errno = 0; @@ -340,7 +342,7 @@ cmath_asinh_impl(PyObject *module, Py_complex z) s2.real = 1.-z.imag; s2.imag = z.real; s2 = cmath_sqrt_impl(module, s2); - r.real = m_asinh(s1.real*s2.imag-s2.real*s1.imag); + r.real = asinh(s1.real*s2.imag-s2.real*s1.imag); r.imag = atan2(z.imag, s1.real*s2.real-s1.imag*s2.imag); } errno = 0; |