Bugs item #1025124, was opened at 2004-09-09 06:47 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1025124&group_id=7586 Category: functional Group: None Status: Open Resolution: None Priority: 5 Submitted By: Nobody/Anonymous (nobody) Assigned to: Mark Rodgers (mark_rodgers) Summary: boost::function doesn't accept classes declared in functions Initial Comment: Submitter: John Engström <john.engstrom\spam\@\spam\solcorp.com> Using MSVC 7.1, I use a functor defined in-scope, as in the following example. ///////////////////// code snippet void bar() { ... struct my_functor { void operator () (int arg1, int arg2) { ... foo(); ... } ... }; my_functor my_functor_instance; boost::function2<void, int, int> my_function1 = boost::ref(my_functor_instance); boost::function2<void, int, int> my_function2 = my_functor_instance; } /////////////////// explanation This fails to compile, see below for error messages, however if I move the declaration of the functor out of the function bar(), it compiles fine. Perhaps it only happens with MSVC. /////////////////// error messages main.cpp(116): error C2893: Failed to specialize function template 'const boost::reference_wrapper<T> boost::ref(T &)' main.cpp(117): error C2440: 'initializing' : cannot convert from 'WinMain::my_functor' to 'boost::function2<R,T0,T1>' with [ R=void, T0=int, T1=int ] ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1025124&group_id=7586 ------------------------------------------------------- This SF.Net email is sponsored by BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_id=5047&alloc_id=10808&op=click _______________________________________________ Boost-bugs mailing list Boost-bugs@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs