Thread: returning class and struct members

Hi there; this question may be trivial to some, since I am new to C++, although I come from C.

I have a struct that defines a type (typeInput), and a class with a funtion that uses some of the members of that struct (see the code below).

What I have not been able to do is the following:
once I use the class function mesh.ReadInput to assign two strings from an input file, I cannot pass them into an other function of the same class.
Specifically, if you look at the code reported hereafter (I divided it in [1],[2], and [3] for the sake of clarity), after assigning correctly two strings to what are called Input.msh_file, when I print its value in main after the call to ReadInput, I get an empty output.

Can anyone help?
Thank you very much in advance,
S.

1] Struct and Class definitions (Mesh.H):

Code:

typedef struct InputTag{

	char msh_file[32];
	int nsd;
	
} typeInput;

class Mesh{

	private:
		int 	nsd;		
		int	nelem;
		int 	nnodes;			// number of nodes (of the mesh).

	public:

	typeInput 	Input;
		
	Mesh(void);			// constructor
	
	//Functions:
	void Mesh::ReadInput(char *input_file, char *msh_generator, char *mesh_file, int *nsd);


};
//END Class and Struct definitions

2] Mesh.cpp

Code:

void Mesh::void Mesh::ReadInput(char *input_file, char *msh_generator, char *mesh_file, int *nsd)
{
	FILE *input_file_ID;
	
	/*********************************************************/
	//Start reading:
	
		input_file_ID = fopen(input_file, "r");
		
		//Read Entries of input file start now:
			fscanf(input_file_ID, "%s \n", &(Input.msh_file));

}; //END Mesh.cpp where Mesh::ReadInput is defined.

3] main.cpp

Code:

int main(int argc, char *argv[])
{
	
	/********************************/

	Mesh	mesh = Mesh();

int nsd, nnodes, nelem, nbdy_nodes, max_elnodes;
	
	char *msh_file, *msh_generator;
	
	/*********************************/
	
	msh_file = (char*) malloc(32 * sizeof(char));
	msh_generator = (char*) malloc(32 * sizeof(char));

//Read input file:
		mesh.ReadInput( argv[1], msh_file, msh_generator, &nsd);

              
  //!!! HERE IS THE PROBLEM!!! When I print out the strings msh_file and msh_generator that
                  should have been assigned in mesh.ReadInput, I get an empy  output:
		printf("msh_file :: %s \n", msh_file);


   //Free dyn. memory
   free(msh_file);
   free(msh_generator);

return 0;
}