Hi all, Le vendredi 3 janvier 2014 20:41:31 Rodney Rushing a écrit : > > Nope. The behaviour of cast a type that is bigger than the > > destination is undefined. If it works, it is a fluke. > > I see. So it was invalid on your platform, not in VC 32-bit. > I can see that it is definitely bad cross-platform practice.
intptr_t, uintptr_t and ptrdiff_t are standard° integer types sized to contain a void* (that is int for 32 bits, long int for 64 bits, etc.). (via <cstdint> in C++) ° C++11. And also C99 for the former two. (At least, that’s what I read in the GCC 4.8 cstdint header file ;o) Qt also has cross-platform quintptr and qptrdiff. reinterpret_cast to one of these types and you should be ok for simple cross-platform pointer arithmetic. There are lots of standard types that are not sufficiently known or advertized.... Thanks all for the good works (those patches and Leocad), -- Sylvain Sauvage _______________________________________________ Leocad mailing list [email protected] https://list.gerf.org/listinfo/leocad
