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  1. #include <iostream>
  2. #include <memory>
  3. #include <vector>
  4. #include <cstdint>
  5. using namespace std;
  6.  
  7. enum shape_kind {Cube, Sphere};
  8.  
  9. struct shape {
  10. 	virtual ~shape() {}
  11. 	virtual shape_kind kind() = 0;
  12. };
  13.  
  14. struct cube : public shape {
  15. 	shape_kind kind() { return Cube; }
  16. };
  17. struct sphere : public shape {
  18. 	shape_kind kind() { return Sphere; }
  19. };
  20.  
  21. shared_ptr<shape> parse(const vector<uint8_t> data) {
  22. 	if (data.at(0) == 1) {
  23. 		return shared_ptr<shape>(new sphere);
  24. 	} else {
  25. 		return shared_ptr<shape>(new cube);
  26. 	}
  27. }
  28.  
  29. int main() {
  30. 	vector<uint8_t> x {1};
  31. 	vector<uint8_t> y {2};
  32. 	auto s = parse(x);
  33. 	auto c = parse(y);
  34. 	cout << (*s).kind() << endl;
  35. 	cout << (*c).kind() << endl;
  36. 	return 0;
  37. }
Success #stdin #stdout 0s 15240KB
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https://ideone.com/PK6I0c
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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