diff options
Diffstat (limited to 'Include/pyport.h')
| -rw-r--r-- | Include/pyport.h | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/Include/pyport.h b/Include/pyport.h index 855c382..5102f74 100644 --- a/Include/pyport.h +++ b/Include/pyport.h @@ -14,6 +14,16 @@ #endif +// Macro to use C++ static_cast<> and reinterpret_cast<> in the Python C API +#ifdef __cplusplus +# define _Py_static_cast(type, expr) static_cast<type>(expr) +# define _Py_reinterpret_cast(type, expr) reinterpret_cast<type>(expr) +#else +# define _Py_static_cast(type, expr) ((type)(expr)) +# define _Py_reinterpret_cast(type, expr) ((type)(expr)) +#endif + + /* Defines to build Python and its standard library: * * - Py_BUILD_CORE: Build Python core. Give access to Python internals, but @@ -295,10 +305,11 @@ extern "C" { * VALUE may be evaluated more than once. */ #ifdef Py_DEBUG -#define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) \ - (assert((WIDE)(NARROW)(VALUE) == (VALUE)), (NARROW)(VALUE)) +# define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) \ + (assert((WIDE)(NARROW)(VALUE) == (VALUE)), (NARROW)(VALUE)) #else -#define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) (NARROW)(VALUE) +# define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) \ + _Py_reinterpret_cast(NARROW, (VALUE)) #endif |