enums - C++ Switch on Data Type -

i have attribute class has enum specifying type of attribute (int_64, uint 64, int_32, string, double, etc.). attribute class uses boost::any hold vector of types specified enum.

at moment in order work data have big switch statement, , @ least fundamental data types feel there easier way it.

my switch statement looks this:

switch(attribute.type) {     case double:         stmt->setnumber(col_counter, number(attribute.get_value<double>(row_counter)));         break;     case int_32:         stmt->setnumber(col_counter, number(attribute.get_value<int_32t>(row_counter)));         break; } 

attribute defined as:

class attribute {     public:         template <typename t>         t get_value(const unsigned index) const         {             const std::vector<t> * v = boost::any_cast<const std::vector<t> >(&data);             return v->at(index);         }          data_type_enum type;         std::string name;         boost::any data; } 

is there way of avoiding switch statement, doing similar to:

stmt->setnumber(col_counter, number(attribute.get_value<attribute.type>(row_counter))); 

well, unfortunately answer no. said r sahu in comment:

not way want to. if get_value function template, can use get_value if attribute.type known integral constant @ compile time.