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  1.  
  2. #include <string>
  3. #include <iostream>
  4.  
  5. class A
  6. {
  7.    public:
  8.      A() = default;
  9.      A(const A&) = default;
  10.  
  11.      A(const std::string& str)
  12.        : m_str(str)
  13.      {
  14.      }
  15.      A(const A& rA, std::string str) : A(rA)
  16.      {
  17.         m_str += str;
  18.      }
  19.  
  20.      const std::string& GetStr() const
  21.      {
  22.          return m_str;
  23.      }
  24.    private:
  25.      std::string m_str = "default value";
  26. };
  27.  
  28.  
  29.  
  30. int main(int argc, char* argv[])
  31. {
  32.     A a;
  33.     std::cout << a.GetStr() << std::endl;
  34.  
  35.     A aa("aa");
  36.     std::cout << aa.GetStr() << std::endl;
  37.  
  38.     A aaa(aa, "a-pops");
  39.     std::cout << aaa.GetStr() << std::endl;
  40.  
  41. 	return 0;
  42. }
  43.  
  44.  
Success #stdin #stdout 0s 3456KB
comments (?)
stdin
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Standard input is empty
stdout
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default value
aa
aaa-pops
https://ideone.com/wEOY8L
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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