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| author | Tim Peters <tim.peters@gmail.com> | 2002-12-28 21:56:08 (GMT) |
|---|---|---|
| committer | Tim Peters <tim.peters@gmail.com> | 2002-12-28 21:56:08 (GMT) |
| commit | 4643bd9a9cf43332992d10982c52debf3f0d980c (patch) | |
| tree | 26eb64e0d86945d4724c74a609b501f808b49a01 /Include/pyport.h | |
| parent | 5b26abb37adc6640bb5cb10cf196f59e77ba05e0 (diff) | |
| download | cpython-4643bd9a9cf43332992d10982c52debf3f0d980c.zip cpython-4643bd9a9cf43332992d10982c52debf3f0d980c.tar.gz cpython-4643bd9a9cf43332992d10982c52debf3f0d980c.tar.bz2 | |
Apparently FreeBSD enables some HW floating-point exceptions by default.
This can cause core dumps when Python runs. Python relies on the 754-
(and C99-) mandated default "non-stop" mode for FP exceptions. This
patch from Ben Laurie disables at least one FP exception on FreeBSD at
Python startup time.
Diffstat (limited to 'Include/pyport.h')
| -rw-r--r-- | Include/pyport.h | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/Include/pyport.h b/Include/pyport.h index e9a0155..6a9b7e6 100644 --- a/Include/pyport.h +++ b/Include/pyport.h @@ -255,10 +255,15 @@ extern "C" { * if the returned result is a NaN, or if a C89 box returns HUGE_VAL * in non-overflow cases. * X is evaluated more than once. + * Some platforms have better way to spell this, so expect some #ifdef'ery. */ +#ifdef __FreeBSD__ +#define Py_OVERFLOWED(X) isinf(X) +#else #define Py_OVERFLOWED(X) ((X) != 0.0 && (errno == ERANGE || \ (X) == Py_HUGE_VAL || \ (X) == -Py_HUGE_VAL)) +#endif /* Py_SET_ERANGE_ON_OVERFLOW(x) * If a libm function did not set errno, but it looks like the result @@ -320,7 +325,7 @@ extern "C" { #if defined(__GNUC__) && (__GNUC__ == 3) && (__GNUC_MINOR__ >= 1) #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__)) #else -#define Py_DEPRECATED(VERSION_UNUSED) +#define Py_DEPRECATED(VERSION_UNUSED) #endif /************************************************************************** @@ -395,17 +400,17 @@ extern double hypot(double, double); /* Declarations for symbol visibility. PyAPI_FUNC(type): Declares a public Python API function and return type - PyAPI_DATA(type): Declares public Python data and its type + PyAPI_DATA(type): Declares public Python data and its type PyMODINIT_FUNC: A Python module init function. If these functions are - inside the Python core, they are private to the core. - If in an extension module, it may be declared with + inside the Python core, they are private to the core. + If in an extension module, it may be declared with external linkage depending on the platform. As a number of platforms support/require "__declspec(dllimport/dllexport)", we support a HAVE_DECLSPEC_DLL macro to save duplication. */ -/* +/* All windows ports, except cygwin, are handled in PC/pyconfig.h BeOS is only other autoconf platform requiring special linkage handling and both these use __declspec() |