Re: [Boost-users] ptr_container: ptr_map.insert() not compiling?

Duane Murphy wrote:

I'm trying to use boost::ptr_map<> and cannot get calls insert to compile.

I'm on Mac OS X using gcc 3.3 with Xcode.

Even the most basic code fails to compile:

boost::ptr_map< in, int* > my_map; int * val = new int( 22 ); my_map.insert( 1, val );

See http://www.boost.org/libs/ptr_container/doc/ptr_map_adapter.html The first argument needs to be a reference: int key = 1; my_map.insert( key, new int(22) ); 1.34 adds the followinf overload: template< class U > std::pair insert( const key_type& key, std::auto_ptr<U> x ) which does allow the key to be an rvalue (just don't create the auto_ptr in the function call). HTH -Thorsten