Passing 2d arrays to a function

[earth_angel]

OK, I think I've lost all my C++ knowledge here. i can't properly pass a 2D array of floats to a function.

I have a dynamically allocated 2d array of float and I have a function that should fill it. The size is known before the call for the function.
I have this:
the function deffinition

void GetData(FILE *ptr, FILE *out, unsigned int Mask[], float &mtxVicVals, int n , int s)
{
........
                             if(Mask[j] == 1)
				{
					mtxVicVals[i][p] = Values[j];
					p++;
				}
.............
}

the function call

GetData(inp, out, Mask, mtxVicVals,  vars.NumParam, vars.NumScan);

I know I'm thinking of it as a 1D array. Will I use two & in th declaration?

[Antigloss]

how about this?
float **mtxVicVals

[earth_angel]

it compiles, but I get a run-time error that memory could not be written.
but would passing by reference be faster?

[Antigloss]

let me see...

is it because i or p out of range of the array

a referrence won't be faster in this case

[Antigloss]

try this if you intend to use referrence

void a(int (&i)[5][5])
{}

int main()
{
    //what goes here?
	int b[5][5] = { 0 };
	a(b);
}

[earth_angel]

I did create the matrix with the wrong size. I did use ** in the declaration at first but this error made me start playing with it, and I just got super confused.

It seems to be working fine now.

Thanks,

AS.