I am trying to call inside function of map.but that is no work.

#include <iostream>
#include <map>
#include <string>
#include <functional>
#include <utility>
#include <cstdint>

pair<int, vector<uint8_t> > TypeNUMMFunc(uint8_t received_data, int fileN);

typedef pair<int, vector<std::uint8_t> > (*MyFunctionType)(uint8_t, int);

map<int, MyFunctionType> funcMap;


int main() {
  
  pair<int, vector<uint8_t> > TypeNUMMFunc(uint8_t received_data, int fileN) {
    
    return make_pair(1, vector<uint8_t>{1, 2, 4});
  }
  funcMap["typeNULL"] = &TypeNUMMFunc;
  // call map funciton
  funcMap["typeNULL"](1, 2);
  // here, i recevied error

}

error message:

exit code: 139 (interrupted by signal 11:SIGSEGV)

make_pair(1, vector<uint8_t>{1, 2, 4}); can exec, but in map, can not exec.