[Boost-users] Re: iterator_adaptor: disguise iterator asconst_iterator?

Jeff Flinn writes:

A third solution?: (untested)

const_iterator_type wrapper::erase( const_iterator_type aItr ) { thismaptype::iterator lItr = thismap.find( aItr->first );

if( lItr == thismap.end() ) throw something;

return thismap.erase( lItr ); }

You are right, for a map this would be much better than the distance solution, but it is still basically the same problem: You are searching an element that you already know. For a map the overhead is not so big, for containers like list it really hurts. Thanks for your effort, Martin Wartens