On 21/08/12 16:11, Florian Weimer wroe: > I'm looking for a document which describes common changes which do not > change the ABI of a library. There are a few possible changes listed > under: > > <http://gcc.gnu.org/onlinedocs/libstdc++/manual/abi.html> > > , but I hope there are more possibilities, such as adding a virtual > member function at the end of the class definition, assuming that the > class had any virtual member functions before, and there are no > classes deriving from it. > > Recommendations for increasing the range of ABI-preserving changes > (mainly the pImpl idiom) would be welcome as well. > > Does such a document exist already? You may find this article interesting http://techbase.kde.org/Policies/Binary_Compatibility_Issues_With_C++
