[PyQt] Dealing with GCC/LLVM warning: zero as null pointer constant [-Wzero-as-null-pointer-constant]

BrĂ¼ns, Stefan Stefan.Bruens at rwth-aachen.de
Tue Aug 28 18:18:34 BST 2018


current versions of GCC and LLVM issue a warning when 0 is used for a null 
pointer. This is e.g. the case for generated code using sipCallMethod. The 
prototype of the underlying api_call_method interface is:

PyObject *(*api_call_method)(int *isErr, PyObject *method, const char *fmt, 

The C++11 way for a correct call would be

sipCallMethod(nullptr, ....)

, but this only works for C++11 compliant compilers. I have tried different 
variants and compilers with godbolt:


, and the most portable one seems to be:
#if __cplusplus < 201103L
#define nullptr 0

sipCallMethod(nullptr, ...);

Any thoughts on this?

Kind regards,


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