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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. namespace SF
  5. {
  6. 	enum Enums {None, CanStore = 1, CanRest = 2, CanTrain = 4, OnWater = 8, OnLand = 16, CanProduce = 32, CanOperate = 64, OnWaterAndLand = OnWater|OnLand};
  7. };
  8.  
  9. typedef unsigned int StructFlags;
  10.  
  11. int main()
  12. {
  13. 	StructFlags structureFlags = SF::None;
  14.  
  15. 	structureFlags |= SF::CanStore;
  16.  
  17. 	structureFlags |= (SF::CanOperate | SF::CanProduce);
  18.  
  19. 	structureFlags |= SF::OnWaterAndLand;
  20.  
  21. 	if(structureFlags & SF::CanStore)
  22. 		std::cout << "This building can store stuff." << std::endl;
  23.  
  24. 	if(structureFlags & SF::CanOperate)
  25. 		std::cout << "This building requires people to operate it." << std::endl;
  26.  
  27. 	//  |--- Notice the '!' to negate the result.
  28. 	//  v
  29. 	if( !(structureFlags & SF::CanTrain))
  30. 		std::cout << "This building can NOT train people." << std::endl;
  31.  
  32. 	if(structureFlags & SF::OnWaterAndLand)
  33. 	{
  34. 		std::cout << "This building is on both water and land." << std::endl;
  35. 	}
  36. 	else if(structureFlags & SF::OnWater)
  37. 	{
  38. 		std::cout << "This building is only on water." << std::endl;
  39. 	}
  40. 	else if(structureFlags & SF::OnLand)
  41. 	{
  42. 		std::cout << "This building is only on land." << std::endl;
  43. 	}
  44. 	else
  45. 	{
  46. 		std::cout << "This building is not on water or land." << std::endl;
  47. 	}
  48.  
  49. 	return 0;
  50. }
Success #stdin #stdout 0s 3340KB
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Standard input is empty
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This building can store stuff.
This building requires people to operate it.
This building can NOT train people.
This building is on both water and land.
https://ideone.com/m4ZXAb
Demonstrating bitflags in C++.
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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