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  1. #include <iostream>
  2. #include <cstring>
  3. #include <utility>
  4.  
  5. class String {
  6. private:
  7.     char *value;
  8.  
  9. public:
  10.     String(const char* str);
  11.     ~String();
  12.     int length() const;
  13. };
  14.  
  15. String::String(const char* str)
  16.     : value(NULL)
  17. {
  18.     if (str) {
  19.         value = new char[std::strlen(str) + 1];
  20.         std::strcpy(value, str);
  21.     }
  22. }
  23.  
  24. String::~String()
  25. {
  26.     delete[] value;
  27. }
  28.  
  29. int String::length() const
  30. {
  31.     return (value) ? std::strlen(value) : 0;
  32. }
  33.  
  34. int main() {
  35. 	String a = "Hello";
  36. 	int i = a.length();
  37. 	std::cout << i;
  38. 	return 0;
  39. }
Success #stdin #stdout 0.01s 5424KB
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5
https://ideone.com/VCiecP
language:
C++ 4.3.2 (gcc-4.3.2)
created:
4 years ago
visibility:
public

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