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  1. #include <iostream>
  2.  
  3. class foo
  4. {
  5. public:
  6.     void fn();
  7.     void fn2();
  8. private:
  9. 	void check_invariants();
  10.     int i = 2; // must be between 0 and 5
  11. };
  12.  
  13. void foo::check_invariants()
  14. {
  15. 	if (i > 5 || i < 0)
  16. 	    throw("Oops");
  17. }
  18.  
  19. void foo::fn()
  20. {
  21. 	// do stuff
  22. 	check_invariants();
  23. }
  24.  
  25. void foo::fn2()
  26. {
  27. 	// do stuff
  28. 	check_invariants();
  29. }
  30.  
  31. int main() {
  32.     foo f;
  33.     f.fn();
  34.     f.fn2();
  35. 	return 0;
  36. }
Success #stdin #stdout 0s 15232KB
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https://ideone.com/LG358r
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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