fork(1) download
copy 
  1. #include <iostream>
  2.  
  3. typedef struct A
  4. {
  5.     int x;
  6.     int y;
  7. } *PA;
  8.  
  9. class B
  10. {
  11.     public:
  12.         B(PA pa):m_pa(pa){}
  13.         int getPa() const{return m_pa->x;}
  14.     private:
  15.         PA m_pa;
  16. };
  17.  
  18. void func(const B& b)
  19. {
  20.     std::cout << b.getPa();
  21. }
  22.  
  23. int main()
  24. {
  25.     A a = {5,7};
  26.     PA pA = &a;
  27.  
  28.     func(pA);       //Why does this compile and what is the outcome??
  29.     return 0;
  30. }
Success #stdin #stdout 0s 3412KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
5
https://ideone.com/y8Z2O9
language:
C++14 (gcc 8.3)
created:
7 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!