Tim Peters wrote:
>>Sigh. I don't see any way to avoid a warning in Jack's case.
>
>
> Martin's turn ;-)
I see two options:
1. Revert the change for the const char** keywords argument (but
leave the change for everything else). C++ users should only
see a problem if they have a const char* variable, not if
they use literals (Jeremy's compiler's warning is insensate)
For keyword arguments, people typically don't have char*
variables; instead, they have an array of string literals.
2. Only add the const in C++:
#ifdef __cplusplus
#define Py_cxxconst const
#else
#define Py_cxxconst
#endif
PyAPI_FUNC(int) PyArg_ParseTupleAndKeywords(PyObject *, PyObject *,
const char *, Py_cxxconst char *Py_cxxconst*, ...);
This might look like it could break C/C++ interoperability on
platforms that take an inventive interpretation of standard
(e.g. if they would mangle even C symbols). However, I believe
it won't make things worse: The C++ standard doesn't guarantee
interoperability of C and C++ implementations at all, and the
platforms I'm aware of support the above construct (since
PA_PTAK is extern "C").
Regards,
Martin
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