fork download
copy 
  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class A {
  5. public:
  6.     A(std::string value)
  7.         : m_value(value)
  8.     {
  9.     }
  10.  
  11.     // A a = std::string("some value")
  12.     A& operator=(const std::string value) {
  13.         m_value = value;
  14.     }
  15.  
  16.     operator std::string() const { return m_value; }
  17.     const std::string* operator->()const { return & m_value; }
  18.  
  19. private:
  20.     std::string m_value;
  21. };
  22.  
  23.  
  24. int main() {
  25. 	A a("foo");
  26. 	std::string temp = a;
  27. 	printf("1.) Temp's value: %s \n", temp.c_str());
  28. 	printf("2.) A's value w/ static_cast: %s \n", static_cast<string>(a).c_str());
  29. 	printf("3.) A's value w/ arrow: %s \n", a->c_str());
  30. 	return 0;
  31. }
Success #stdin #stdout 0s 3456KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
1.) Temp's value: foo 
2.) A's value w/ static_cast: foo 
3.) A's value w/ arrow: foo
https://ideone.com/LPfIV3
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!