Matt Calabrese writes:
Forgive me for posting three times in a row, but I just realized that the reason why this conflict appears in the first place is because of the difference between <algorithm> count and count as a member of associative sequences in the STL.
Yep.
Since there is currently no distinction between these two types of count in MPL, the conflict simply cannot be resolved (it is conceivable that in certain cases you may wish to count by value_type whereas sometimes you may wish to count by key_type, such as the STL allows, so both forms of count should be useable for associative sequences). It seems as though the only way to resolve this would be to have two differently named counts, such as count and count_by_key appropriately.
I'd go with 'key_count' for the latter, but otherwise I agree with the analysis. -- Aleksey Gurtovoy MetaCommunications Engineering