Re: [Boost-users] [ptr_container] Pair type for boost::ptr_map?

Nat Goodspeed skrev:

Robert Dailey wrote:

...

I have the following code:

void HandlePair( std::pair<int, char*>& mypair ) { }

void main() { boost::ptr_map<int, char> mymap; HandlePair( *mymap.begin() ); }

What's the proper way to accept pairs in the HandlePair function?

I'd suggest basing it on your actual ptr_map type, e.g.: void HandlePair(const boost::ptr_map<int, char>::value_type& mypair) {}

Actually, using void HandlePair(boost::ptr_map<int, char>::const_reference mypair); is better, since the reference type is not a real reference. So don't rely on map::reference to be equal to map::value_type&. HTH -Thorsten