Question 1.
std::vector<Roles> vr;
the constructor for Roles:
enum Role { .....};
 explicit Roles (const std::string& usr, const Role& r);
How would I use boost::assign::list_of to assign a vector of Roles instead of doing regular vector push_back.


Question 2.
Related.
I have a Hash map i.e. boost::unordered_map<std::string, compositionType> and i want to use boost::map_list_of how would i do that.

Question 3.
trying to use operator += in boost::assignment i get error specifying unknown types.
typedef boost::function<std::vector<int>(std::vector<int>)> sortfunc;
std::vector<sortfunc> function_list;
    // quicksort random
    function_list += (&quicksort<QSTYPE(RANDOM), int, std::vector>)
    // quicksort median
    (&quicksort<QSTYPE(MEDIAN), int, std::vector>) // error here.
    // quicksort mediantriple
    (&quicksort<QSTYPE(MEDIANTRIPLE), int, std::vector>)
    // merge sort
    (&mergesort<int, std::vector>)
 // heap sort
 (&heapsort<int, std::vector>)
 // selection sort
 (&selection_sort<int, std::vector>)
 // standard sort
 (&standard_sort<int, std::vector>); 
 
 
Thanks for any help in advanced.