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  1. //             Copyright Evgeny Panasyuk 2012.
  2. // Distributed under the Boost Software License, Version 1.0.
  3. //    (See accompanying file LICENSE_1_0.txt or copy at
  4. //          http://w...content-available-to-author-only...t.org/LICENSE_1_0.txt)
  5.  
  6. #include <iostream>
  7. #include <ostream>
  8. #include <vector>
  9. #include <string>
  10. using namespace std;
  11.  
  12. // ____________________________________________________________________________________ //
  13.  
  14. struct record
  15. {
  16.     string name;
  17.     int age;
  18. };
  19. struct ref_record
  20. {
  21.     string &name;
  22.     int &age;
  23. };
  24. class scattered_record
  25. {
  26.     vector<string> name;
  27.     vector<int> age;
  28. public:
  29.     unsigned size()
  30.     {
  31.         return unsigned(name.size() | age.size() | 0);
  32.     }
  33.     void push_back(const record &rec)
  34.     {
  35.         name.push_back(rec.name);
  36.         age.push_back(rec.age);
  37.     }
  38.     ref_record operator[](unsigned index)
  39.     {
  40.         ref_record temp = { name[index], age[index], };
  41.         return temp;
  42.     }
  43. };
  44.  
  45. // ____________________________________________________________________________________ //
  46.  
  47. int main()
  48. {
  49.     scattered_record vecs;
  50.     {
  51.         record temp={"One",1}; vecs.push_back(temp);
  52.     }
  53.     {
  54.         record temp={"Two",2}; vecs.push_back(temp);
  55.     }
  56.     {
  57.         record temp={"Three",3}; vecs.push_back(temp);
  58.     }
  59.     for(unsigned i=0,size=vecs.size();i!=size;++i)
  60.     {
  61.         cout << vecs[i].name << " " << vecs[i].age << endl;
  62.         vecs[i].name+="_postfix";
  63.         vecs[i].age+=10;
  64.     }
  65.     cout << string(16,'_') << endl;
  66.     for(unsigned i=0,size=vecs.size();i!=size;++i)
  67.         cout << vecs[i].name << " " << vecs[i].age << endl;
  68. }
  69.  
Success #stdin #stdout 0.02s 2860KB
comments (?)
stdin 
Standard input is empty
stdout 
One 1
Two 2
Three 3
________________
One_postfix 11
Two_postfix 12
Three_postfix 13
https://ideone.com/vYHS0F
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

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