the changes break the following code, though (maybe this can be added to the shared_from_this_test.cpp test suite?):
struct V: public boost::enable_shared_from_this<V> {};
struct W: V {};
void test4(void) { W * w = new W(); boost::shared_ptr<W> p(w); }
You'll have to be more specific about the problem you're encountering, and what compiler you're using. The code compiles cleanly for me.
complete code: http://tim.klingt.org/git?p=boost.git;a=blob;f=libs/smart_ptr/test/ shared_from_this_test.cpp tested compilers: g++-4.0, 4.1, 4.2, 4.3 ... linux, x86, x86_64 error message: tim@laptop:~/workspace/boost.git/libs/smart_ptr/test$ "g++-4.3" -ftemplate-depth-128 -O0 -fno-inline -Wall -g -fPIC -Wno-non-virtual-dtor -DBOOST_ALL_NO_LIB=1 -I"../../.." -c -o "../../../bin.v2/libs/smart_ptr/test/shared_from_this_test.test/gcc-4.3/debug/shared_from_this_test.o" "shared_from_this_test.cpp" ../../../boost/shared_ptr.hpp: In member function ‘boost::shared_ptr<T>& boost::shared_ptr<T>::operator=(const boost::shared_ptr<Y>&) [with Y = V, T = W]’: ../../../boost/enable_shared_from_this.hpp:98: instantiated from ‘void boost::enable_shared_from_this<T>::_internal_accept_owner(boost::shared_ptr<Y>&) const [with U = W, T = V]’ ../../../boost/shared_ptr.hpp:100: instantiated from ‘void boost::detail::sp_enable_shared_from_this(boost::shared_ptr<Y>*, const boost::enable_shared_from_this<T>*) [with T = V, Y = W]’ ../../../boost/shared_ptr.hpp:181: instantiated from ‘boost::shared_ptr<T>::shared_ptr(Y*) [with Y = W, T = W]’ shared_from_this_test.cpp:166: instantiated from here ../../../boost/shared_ptr.hpp:298: error: invalid conversion from ‘V* const’ to ‘W*’ hth, tim -- tim@klingt.org http://tim.klingt.org Silence is only frightening to people who are compulsively verbalizing. William S. Burroughs