id summary reporter owner description type status milestone component version severity resolution keywords cc 3446 [boost] [fusion] transform does not return a mutable view jhellrung@… Joel de Guzman Based on the documentation (and my own experience), it doesn't appear that transform will return a mutable transform_view, since transform receives its sequence argument always by const reference. Is this intentional, or an oversight? It seems like there's no loss in providing 2 overloads of transform, one accepting a const reference and one accepting a non-const reference. Feature Requests new Boost 1.41.0 fusion Boost 1.40.0 Optimization Christopher Schmidt