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  1. #include <limits>
  2.  
  3. class Foo {
  4. public:
  5.     constexpr Foo(const int value) : value(value) {}    
  6.     constexpr operator int () const { return value; }
  7.  
  8. private:
  9.     int value;
  10. };
  11.  
  12. class Bar : public Foo {
  13. public:
  14. 	using Foo::Foo;
  15.     constexpr static Foo UNKNOWN = std::numeric_limits<int>::max();
  16.     constexpr static Foo ANY     = UNKNOWN - 1;
  17. };
  18.  
  19. int main() {
  20. 	return Bar(0);
  21. }
  22.  
Success #stdin #stdout 0s 3464KB
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https://ideone.com/21oW8h
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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