#include <iostream>

struct contact_page {

  enum class channel {
    name, street, plz, city, telephone, fax, mobile, email
  }
  
  void show_info (channel c) {
    switch (c) {
      case channel::name:
        std::cout << "Ing. Büro Rothfuß";
        break;
      case channel::street:
        std::cout << "Riedlinger Str. 8";
        break;
      case channel::plz:
        std::cout << "70327";
        break;
      case channel::city:
        std::cout << "Stuttgart";
        break;
      case channel::telephone:
        std::cout << ;
        break;
      case channel::fax:
        std::cout << ;
        break;
      case channel::mobile:
        std::cout << ;
        break;
      case channel::email:
        std::cout << ;
        break;
    }
  }