Re: [Boost-users] Using lambda bind as destruct functor to shared_ptr

Scott French wrote:

Hello,

Should the following code sample work? It is the simplest reproduction case I could come up with:

#include #include #include #include

using namespace std; using namespace boost; using namespace boost::lambda;

int main(void) { void * myResource = malloc(5); shared_ptr<void> mySharedResource(myResource, bind(free, _1)); }

I get a compile error using g++ 4.0.1 on Mac OS X:

... My personal opinion is that overloading unary & is evil. My professional opinion is that the code should work. :-) Please apply the following patch (already in CVS): diff -u -r1.4 sp_counted_impl.hpp --- boost/detail/sp_counted_impl.hpp 11 Nov 2005 21:06:08 -0000 1.4 +++ boost/detail/sp_counted_impl.hpp 4 Jul 2007 16:34:16 -0000 @@ -147,7 +147,7 @@ virtual void * get_deleter( std::type_info const & ti ) { - return ti == typeid(D)? &del: 0; + return ti == typeid(D)? &reinterpret_cast( del ): 0; } #if defined(BOOST_SP_USE_STD_ALLOCATOR) @@ -217,7 +217,7 @@ virtual void * get_deleter( std::type_info const & ti ) { - return ti == typeid( D )? &d_: 0; + return ti == typeid( D )? &reinterpret_cast( d_ ): 0; } };