#5 Missing include in *box*.hpp

[Michał Garapich]

box_multimap.hpp and idle_box_multimap.hpp are missing bits/spatial_check_concept.hpp include, causing a compiler error, as there is no enable_if_c type defined for the check_concept_dimension_is_even.

[Sylvain Bougerel]

Thanks Michal for the report. I've been working on algorithms performance for the past year. Now that it's released, I will fix this issue. Should be quick.

[Sylvain Bougerel]

Fixed in 2.1.8