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| author | Mark Dickinson <dickinsm@gmail.com> | 2009-05-04 13:30:43 (GMT) |
|---|---|---|
| committer | Mark Dickinson <dickinsm@gmail.com> | 2009-05-04 13:30:43 (GMT) |
| commit | e05e8409e1b47a2c018ad8a67016546217165c60 (patch) | |
| tree | c9c456bdf14ee3d9c0821ee2ee843a45bcf9bdf9 /Python/pymath.c | |
| parent | 67032252588e3919e4fbfbbd256b91add8a5af45 (diff) | |
| download | cpython-e05e8409e1b47a2c018ad8a67016546217165c60.zip cpython-e05e8409e1b47a2c018ad8a67016546217165c60.tar.gz cpython-e05e8409e1b47a2c018ad8a67016546217165c60.tar.bz2 | |
Issue #5724: Fix cmath failures on Solaris 10.
Diffstat (limited to 'Python/pymath.c')
| -rw-r--r-- | Python/pymath.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Python/pymath.c b/Python/pymath.c index 6b8def9..2749688 100644 --- a/Python/pymath.c +++ b/Python/pymath.c @@ -1,5 +1,18 @@ #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 + #ifndef HAVE_HYPOT double hypot(double x, double y) { |