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| author | Victor Stinner <vstinner@python.org> | 2021-10-13 21:27:50 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-10-13 21:27:50 (GMT) |
| commit | 194a9526d8ee6abbbe58ef48520ec87a7e83f327 (patch) | |
| tree | ff8b22ba8a475d7da5a5b5a6ca75316bd9d44c5d /Python/pymath.c | |
| parent | aac29af6785712019d34f1a7f15b3c408a4f68ae (diff) | |
| download | cpython-194a9526d8ee6abbbe58ef48520ec87a7e83f327.zip cpython-194a9526d8ee6abbbe58ef48520ec87a7e83f327.tar.gz cpython-194a9526d8ee6abbbe58ef48520ec87a7e83f327.tar.bz2 | |
bpo-45440: Require math.h isinf() to build (GH-28894)
Building Python now requires a C99 <math.h> header file providing
isinf(), isnan() and isfinite() functions.
Remove the Py_FORCE_DOUBLE() macro. It was used by the
Py_IS_INFINITY() macro.
Changes:
* Remove Py_IS_NAN(), Py_IS_INFINITY() and Py_IS_FINITE()
in PC/pyconfig.h.
* Remove the _Py_force_double() function.
* configure no longer checks if math.h defines isinf(), isnan() and
isfinite().
Diffstat (limited to 'Python/pymath.c')
| -rw-r--r-- | Python/pymath.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/Python/pymath.c b/Python/pymath.c index d3c52a0..b2681f2 100644 --- a/Python/pymath.c +++ b/Python/pymath.c @@ -1,18 +1,5 @@ #include "Python.h" -#ifdef X87_DOUBLE_ROUNDING -/* On x86 platforms using an x87 FPU, this function is called from the - Py_FORCE_DOUBLE macro (defined in pymath.h) to force a floating-point - number out of an 80-bit x87 FPU register and into a 64-bit memory location, - thus rounding from extended precision to double precision. */ -double _Py_force_double(double x) -{ - volatile double y; - y = x; - return y; -} -#endif - #ifdef HAVE_GCC_ASM_FOR_X87 // Inline assembly for getting and setting the 387 FPU control word on |