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  1. #include <iostream>
  2.  
  3. struct SVector
  4. {
  5. 	float X, Y, Z;
  6. };
  7.  
  8. class CVector
  9. {
  10. 	private:
  11. 		float X, Y, Z;
  12.  
  13. 	public:
  14. 		CVector(float X, float Y, float Z) : X(X), Y(Y), Z(Z) {}
  15.  
  16. 		void set(float X, float Y, float Z)
  17. 		{
  18. 			this->X = X; this->Y = Y; this->Z = Z;
  19. 		}
  20.  
  21. 		bool operator == (const CVector& V) const
  22. 		{
  23. 		    return ((X == V.X) && (Y == V.Y) && (Z == V.Z));
  24. 		}
  25.  
  26. 		CVector& operator ^= (const CVector& V)
  27. 		{
  28. 		    X = (Y * V.Z) - (Z * V.Y);
  29. 		    Y = (Z * V.X) - (X * V.Z);
  30. 		    Z = (X * V.Y) - (Y * V.X);
  31. 		    return *this;
  32. 		}
  33.  
  34. 		CVector& CrossProduct(const CVector& V)
  35. 		{
  36. 		    return CVector(*this) ^= V;
  37. 		}
  38. };
  39.  
  40.  
  41. void GLFunc(void* some_vertex_structure, int size, int stride)
  42. {
  43. 	for (int i = 0; i < size / stride; ++i)
  44. 	{
  45. 		unsigned char* c = reinterpret_cast<unsigned char*>(some_vertex_structure) + (stride * i);
  46. 		std::cout<<*reinterpret_cast<float*>(c)<<"\n";
  47. 	}
  48. }
  49.  
  50. int main()
  51. {
  52. 	SVector sv = {1.0f, 2.0f, 3.0f};
  53.  
  54. 	CVector cv(4.0f, 5.0f, 6.0f);
  55.  
  56. 	GLFunc(&sv, sizeof(sv), sizeof(float));
  57. 	GLFunc(&cv, sizeof(cv), sizeof(float));
  58. 	return 0;
  59. }
Success #stdin #stdout 0s 3296KB
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https://ideone.com/F2KPdF
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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