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  1. #include <string>
  2. #include <map>
  3. #include <set>
  4. #include <initializer_list>
  5.  
  6. using namespace std;
  7.  
  8. class A
  9. {
  10. public:
  11.     struct pair_type    // or use std::pair
  12.     {
  13.         long val;
  14.         std::string desc;
  15.     };
  16.  
  17.     A(initializer_list<A::pair_type>);
  18.  
  19. private:
  20.     map<long, string> _valueMap;
  21.     map<string, long> _descriptionMap;
  22.     set<string> _descriptions;
  23.     set<long> _values;
  24. };
  25.  
  26. A::A(initializer_list<A::pair_type> l)
  27. {
  28.     for (auto & elem : l)
  29.     {
  30.         _valueMap.emplace(elem.val, elem.desc);
  31.         _descriptionMap.emplace(elem.desc, elem.val);
  32.         _descriptions.emplace(elem.desc);
  33.         _values.emplace(elem.val);
  34.     }
  35. }
  36.  
  37.  
  38. class B
  39. {
  40.     enum { abbreviation, name, number, numberOfNameOptions };
  41.  
  42. public:
  43.     static A& getType();
  44. };
  45.  
  46. A& B::getType()
  47. {
  48.     static A a =
  49.     {
  50.         { abbreviation, "abbreviation" },
  51.         { name, "name" },
  52.         { number, "number" },
  53.         { numberOfNameOptions, "numberOfNameOptions" }
  54.     };
  55.  
  56.     return a;
  57. }
  58.  
  59. int main()
  60. {
  61. 	B b ;
  62. 	A a = b.getType() ;
  63. }
  64.  
Success #stdin #stdout 0s 3476KB
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https://ideone.com/VwqbqS
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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