Probemwith functions in stdarg.h

[souenzzo]

I dont know english very well, so lets speak in C. (=

void simulation_scanner (char *name, int size, int TMP, int num, ...)
{
    int i,j;
    va_list arguments;
    double (*foo[num])(struct OBJ); /* 1 */
    va_start (arguments,num);
    for (i=0;i<num;i++)
        foo[i] = va_arg(arguments, (???) ); /* 2 */
    va_end (arguments);

    double data[TMP][num];
    struct OBJ *T = mkobj(size);

    for (i=0;i<TMP;i++)
    {
        simulation_step(T);
        for (j=0;j<num;j++) data[i][j] = foo(*T);
    }
    write_on_file(name,data,TMP,num);
    return;
}

I'll use the function this way:

{...}
double density (struct OBJ T) { return T.occ / T.size; }
double inp (struct OBJ T) { return T.input; }
double out (struct OBJ T) { return T.out; }
{...}
simulation_scanner ("Test01", 150, 200, 3, &density, &inp, &out);
{...}

/* 1 */It's a array of functions!?! If not, how I do it right?
/* 2 */What (???) should be? (double*)(struct OBJ) ?