STINNER Victor <[email protected]> added the comment:
I'm replacing macros with static inline functions to avoid issues like this one
(ex: bpo-35059). Are you interested to convert the PyObject_TypeCheck() macro
to a static inline function?
"""
There is a lot of macros like:
#define PyObject_TypeCheck(ob, tp) \
(Py_IS_TYPE(ob, tp) || PyType_IsSubtype(Py_TYPE(ob), (tp)))
These work fine until an argument happen to contain a comma.
"""
This macro also has a common bug of macros: if one argument has a side effect,
it is executed twice! For example, if an argument is a function call, the
function is called twice.
See:
* https://gcc.gnu.org/onlinedocs/cpp/Macro-Pitfalls.html
* https://vstinner.github.io/split-include-directory-python38.html "Convert
macros to static inline functions"
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<https://bugs.python.org/issue43181>
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