How can i estimate memory usage of stl::map?

Posted by Drakosha on Stack Overflow See other posts from Stack Overflow or by Drakosha
Published on 2009-04-06T07:39:01Z Indexed on 2010/04/18 19:53 UTC
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For example, I have a std::map with known sizeof(A) and sizefo(B), while map has N entries inside. How would you estimate its memory usage? I'd say it's something like

(sizeof(A) + sizeof(B)) * N * factor

But what is the factor? Different formula maybe?

Update: Maybe it's easier to ask for upper bound?

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