id summary reporter owner description type status milestone component version severity resolution keywords cc 4388 apply failure : map_keys, map_values to array Akira Takahashi Neil Groves "map_keys and map_values can apply vector >. But on pair's array can't apply. This problem is map_keys and map_values requires value_type. Solution is Map::value_type to range_value::type." Patches closed Boost 1.44.0 range Boost 1.43.0 Problem fixed