Re: [Boost-users] [Unordered] [Multi-Index] Set lookup from something else than key_type

2009/9/2 :

Yep, I now see your POV and this is admittedly something people can disagree on. Another possibility is that Boost.Unordered provide

 const_iterator find(const key_type& k) const;

 template<   typename CompatibleKey,typename CompatibleHash,typename CompatiblePred  >  iterator find(   const CompatibleKey& k,   const CompatibleHash& hash,const CompatiblePred& eq)const;

which is a pure extension without backwards compatibility problems. This is seemingly what Boost.Intrusive is doing.

Yes, I think I'll add that to the new version which should be released in 1.41 or 1.42. Daniel