[Bug libstdc++/38720] _Relative_pointer_impl invokes undefined behavior

[paolo dot carlini at oracle dot com]

------- Comment #4 from paolo dot carlini at oracle dot com  2009-01-04 14:45 -------
Hmm, for now I think you can include <ext/type_traits.h> and do something like:

 typedef __gnu_cxx::__conditional_type<(sizeof(unsigned long) >=
sizeof(void*)),
            unsigned long, unsigned long long>::__type _UIntPtrType;


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38720