jumptable.cc

typedef int (*ProcessParamFuncPtr)(void);
typedef std::map< std::string, ProcessParamFuncPtr> ProcessFuncMap;

// Initialize map with appropriate functions for the datatype.
ProcessFuncMap map = boost::assign::map_list_of
   ("int64",  process_param< UConfigParamInt, int >)
   ("bool",  process_param< UConfigParamBool, bool >)
   ("float",  process_param< UConfigParamFloat, float >)
   ("string",  process_param< UConfigParamString, std::string>);

// Invoke function based on the datatype
std::string type = get_type();
ProcessFuncMap::iterator it = map.find(type);
if (it != map.end()) {
   ProcessParamFuncPtr fptr = (*it).second;
   int ret = fptr();
}