allocatable arrays in CLASSes and STRUCTS

Hi there,

I am using a struct and a Class whose elements may be arrays. I would like though, for these arrays to be dynamically allocatable when I declare them in the Class and main code; how is it supposed to be done in C++?

I was firstly trying to do it in C, but I prefer to try in C++ because I have files to read and find it easier for them to be read in C++.

I wrap my code here; it's very simple, however, please let me know if there are more information that you need

Thank you in advance,
Best
S.M

Code:

typedef struct VertexTag{

	float x; //x-coord of Vertex
	float y; //y-coord of Vertex
	float z; //z-coord of Vertex

} typeVertex;

//*******************************************************************//
//	Domain class:
//*******************************************************************//
class Mesh{

	public:
		typeVertex	coords[ SIZE_TO_BE_ALLOCATED_DYNAMICALLY ];

		Mesh(void);			// constructor		

};

Originally Posted by simone.marras

I would like though, for these arrays to be dynamically allocatable when I declare them in the Class and main code; how is it supposed to be done in C++?

Generally, we would use a std::vector.

Originally Posted by laserlight

Generally, we would use a std::vector.

thank you, but if I use a std::vector to declare COORDS, how would I access the elements of the struct?

thanks again

Just as you'd do it with an array.

Thank you a lot, I will try it sometime soon.
All the best