diff options
| author | Stefan Behnel <stefan_ml@behnel.de> | 2015-03-29 08:41:05 +0200 |
|---|---|---|
| committer | Stefan Behnel <stefan_ml@behnel.de> | 2015-03-29 08:41:05 +0200 |
| commit | 9990450e1be30dd64e1641071d626eda8d832077 (patch) | |
| tree | 09d020c41895f5899f8a4dfb35e1c1f75fddd222 /Cython/Utility/ModuleSetupCode.c | |
| parent | bcb1043346786605e0cf0d0096cbe006f140ddf0 (diff) | |
| download | cython-9990450e1be30dd64e1641071d626eda8d832077.tar.gz | |
improve declaration of __Pyx_sst_abs() macro to avoid using llabs() before C99
--HG--
extra : amend_source : 69b25b07657205e86aade4f4f8285e721e4648b0
Diffstat (limited to 'Cython/Utility/ModuleSetupCode.c')
| -rw-r--r-- | Cython/Utility/ModuleSetupCode.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/Cython/Utility/ModuleSetupCode.c b/Cython/Utility/ModuleSetupCode.c index fb49a84e5..6ca2dddad 100644 --- a/Cython/Utility/ModuleSetupCode.c +++ b/Cython/Utility/ModuleSetupCode.c @@ -183,9 +183,17 @@ #define __Pyx_PyMethod_New(func, self, klass) PyMethod_New(func, self, klass) #endif -#define __Pyx_sst_abs(value) \ - (sizeof(int) >= sizeof(Py_ssize_t) ? abs(value) : \ - (sizeof(long) >= sizeof(Py_ssize_t) ? labs(value) : llabs(value))) +// fast and unsafe abs(Py_ssize_t) that ignores the overflow for (-PY_SSIZE_T_MAX-1) +#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L + #define __Pyx_sst_abs(value) \ + (sizeof(int) >= sizeof(Py_ssize_t) ? abs(value) : \ + (sizeof(long) >= sizeof(Py_ssize_t) ? labs(value) : llabs(value))) +#else + #define __Pyx_sst_abs(value) \ + (sizeof(int) >= sizeof(Py_ssize_t) ? abs(value) : \ + (sizeof(long) >= sizeof(Py_ssize_t) ? labs(value) : \ + ((value<0) ? -value : value))) +#endif /* inline attribute */ #ifndef CYTHON_INLINE |