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  1. #include <string>
  2. #include <iostream>
  3. using namespace std;
  4.  
  5. class Person
  6. {
  7. private:
  8.     string  name_;
  9.  
  10. public:
  11.     string name() const { return name_; }
  12.  
  13.     Person( string const& name )
  14.         : name_( name )
  15.     {}
  16. };
  17.  
  18. class Student
  19.     : public Person
  20. {
  21. private:
  22.     int     studentId_;
  23.  
  24. public:
  25.     int studentId() const { return studentId_; }
  26.  
  27.     Student( string const& name, int const studentId )
  28.         : Person( name ), studentId_( studentId )
  29.     {}
  30. };
  31.  
  32. int main()
  33. {
  34.     Person  a( "Hillary Clinton" );
  35.     Student b( "John Smith", 12345 );
  36.     Person& bAsPerson = b;
  37.  
  38.     bAsPerson = a;
  39.     cout
  40.         << "Name: " << b.name()
  41.         << ". Student id: " << b.studentId() << "."
  42.         << endl;
  43. }
  44.  
Success #stdin #stdout 0.01s 2856KB
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Standard input is empty
stdout
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Name: Hillary Clinton. Student id: 12345.
https://ideone.com/9twqA
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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