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  1. #include <iostream>
  2. #include<cstring>
  3. #include <algorithm>
  4.  
  5. using namespace std;
  6. class String
  7. {
  8.     private:
  9.     char *sptr;
  10.  
  11.     public:
  12.     String() : sptr(nullptr) {}
  13.  
  14.     String(char str[])
  15.     {
  16.       sptr = new char[strlen(str) + 1];
  17.       strcpy( sptr, str );
  18.     }
  19.  
  20.     String(const String& source)
  21.     {
  22.         sptr = new char[strlen(source.sptr) + 1];
  23.         strcpy( sptr, source.sptr);
  24.     }
  25.  
  26.     ~String()
  27.     {
  28.       delete [] sptr; 
  29.     }
  30.  
  31.     String& operator=( const String& other )
  32.     {
  33.         if(this != &other)
  34.         {
  35.             String tmp( other );   
  36.             std::swap(tmp.sptr, sptr);
  37.         }
  38.         return *this;    
  39.     }
  40.     void display()
  41.     {
  42.  
  43.       for( char const* p = sptr; *p != '\0'; ++ p) {
  44.             std::cout << *p;
  45.         }
  46.         cout<<endl;
  47.  
  48.     }
  49.  
  50.  
  51. };
  52.  
  53.  int main()
  54.  {
  55.  	String s1;
  56.  }
Success #stdin #stdout 0s 15232KB
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https://ideone.com/4Hc2ab
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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