[Boost-users] accumulators: not copying doubles into the acc set

Hello, Having a list of doubles stored somewhere, is there a way not to copy the doubles into the accumulator set and just iterate somehow through the existing data in order to save memory. Imagine I have a std::vector<double> with 10million entries. Then pushing each double to the accumulator set object, then I'd imagine, at one point, the process would hold the 10 million doubles twice. Rds, MM