Support Requests item #1231445, was opened at 2005-07-02 14:09 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1231445&group_id=7586 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Resolution: None Priority: 5 Submitted By: SP (sw_creator) Assigned to: Nobody/Anonymous (nobody) Summary: lambda vs pure virtual functions Initial Comment: Hello all ! i tried to complile this code: ----------------------- namespace Filter{ class ResultType {...}; class SubExpression { public: virtual ResultType Result()=0; }; typedef boost::shared_ptr<SubExpression> SPtrSubExpression; ............ void F() { namespace la=boost::lambda; ResultType r; vector<SPtrSubExpression> v; .................................. vector<SPtrSubExpression>::const_iterator i=find_if(v.begin(), v.end(), la::bind(&SubExpression::Result, *la::_1)==r); } } ------------------------- and I received error: c:\Program Files\boost-1-32-0\boost\tuple\detail\tuple_basic.hpp(419): error C2259: 'Filter::SubExpression' : cannot instantiate abstract class complier :VC++ 7.1 boost 1.32.0 what's wrong? thanks. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1231445&group_id=7586 ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ Boost-bugs mailing list Boost-bugs@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs