c++ - Anything available implemented like Loki's AssocVector but with the functionality of Boost's Bimap? -

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i wonder if aware of library code has performance characteristics provided loki's assocvector (locality of reference of elements, lower per-element memory overhead compared map) boost's bimap functionality (able query map both sides of relation)?

or using sorted std::vector of std::pairs , adding functionality lookup vector using either element of pair key way forward?

it depends on want fast. loki::assocvector has o(n) insert , delete, while boost::bimap has o(1) when use hash tables. if can live o(n) operations on 1 "view" of data structure , o(lg n) on other, proposed solution work fine , take little memory. may fast small data sets, if operations on 1 view dominate.

you may consider using boost.intrusive or boost::bimap specialized allocators.


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