Hi, after switching to version 1.44 my projects using make_shared won't compile anymore. I'm using the VC 9 compiler on a Windows 2003 Server. I'm confused that nobody else seems to have the same problem with make_shared, so here is a small example: /////////////////////////////////////////////////////////////////////////////// #define BOOST_NO_TYPEID #include <boost/smart_ptr.hpp> #include <boost/make_shared.hpp> struct test { test(){} int i; }; int main(int argc, char* argv[]) { boost::shared_ptr<test> spt = boost::make_shared<test>(); return 0; } ///////////////////////////////////////////////////////////////////////////////// this compiles fine with Boost 1.43, but with version 1.44 I get the following error: boost/detail/sp_typeinfo.hpp(77) : error C2440: 'Initialisierung': 'const char *' kann nicht in 'boost::detail::sp_typeinfo' konvertiert werden (in english: 'const char *' cannot be converted to 'boost::detail::sp_typeinfo') In version 1.43 the line in sp_typeinfo.hpp(77) was: template<class T> sp_typeinfo sp_typeid_≤ T >::ti_( sp_typeid_≤ T >::name() ); so, the explicit-marked ctor was called. In version 1.44 it changed to template<class T> sp_typeinfo sp_typeid_≤ T >::ti_ = sp_typeid_≤ T >::name(); and the explicit-marked ctor won't be called anymore. The change message (https://svn.boost.org/trac/boost/changeset/62245/trunk/boost/detail/sp_typei...) refers to some fix for Sun C++. IMO the change should better be guarded by some compiler/platform-detection macro. Tobias PS: I already posted this message on 18 Aug but accidentially as a reply to another thread.