Re: [boost] [multi_index] use cases for iterator_to()

"JOAQUIN LOPEZ MU?Z" wrote:

Hello,

More than a year ago a request was made for Boost.MultiIndx to provide the ability to get an iterator to an element x from x alone:

iterator iterator_to(const value_type& x);

I can provide this functionality in constant time, and the internal implementation is trivial, but I got thinking about the potential use cases for such capability and cannot come up with something convincing.

void X::f() { iterator i = iterator_to( *this ); } ?