newbie C question

[wildfrog]

The only problem: C++ might understand references, but C does not. The OP stated to use C so your solution won't help him at all.

Oh, I thought he was just another lazy C++ programmer (and dropped the obvious ++)

Well, then I'd go for evilsaltines solution:

void alloc_data(float*** data) // pass pointer (to the double pointer)
{
    int i, nx, ny;

    nx = 3;
    ny = 3;

    *data = (float **) calloc(nx, sizeof(float *));
    for (i=0; i<nx; i++)
        (*data)[i] = (float *) calloc(ny, sizeof(float));
}

int main(int argc, char *argv[])
{
    float **data = 0;
    alloc_data(&data);
}

- petter