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Evan Jones wrote:
I have a function to swap any two pointers (assuming that sizeof(void*) == sizeof(T*)). I would like to use it without violating strict aliasing rules.
I don't know how to fight aliasing rules but as another approach you could template the function instead, i.e.
template<typename T> T* exchange(T** ptr, T* next);
exchange<int>(&a, &v2);
since you're using C++ here.
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