c++ - How can you initialize an object from a variables value? -

i generate name of initialized object getting user input. possible? there way name object based on variables value?

i know in code below "test x" doesn't work , know why... there way work? have been trying figure out 2 days now. closest thing came maybe stringstreams... or worse... isn't possible? help?

#include <iostream> using namespace std; #include <string>  class test { public:     string wtf; };  int main() {     test y;         // showing normal initialize     y.wtf = "a";    // assign value       string x;            cin >> x;       // initialize string , input      test x          // trying initialize object based on input     x.wtf = "a";    // assign value       cout << y.wtf;  // printing both test     cout << x.wtf;      return 0; } 

my intent have single array holds employee numbers (concatenated "emp" or in beginning) initiate objects each employee. user input employee number, 1234, , make string added emp + 1234 , come out "emp1234"... initiate object "test emp1234" have bunch of difference variables associated it, inside class.

i may looking @ wrong... , explained crappy. new this, use possible.

i this:

#include <vector> #include <string> #include <iostream> #include <stdexcept>  test make_test() {     std::string s;     if (!(std::cin >> s))     {         throw std::runtime_error("premature end of input");     }     return { "emp" + s }; }  int main() {     std::vector<test> v;      (int = 0; != 10; ++i)     {          v.push_back(make_test());          std::cout << "added employee '" << v.back().wtf << "'\n";     } } 

this fill vector ten employee records.