unsafe static long Test(int size, Point1 a, Point1 b, Point1 c)
{
// Mutate the values stored in a, b and c
// So if these have a shadow copy we will notice
//
a.Increase(ref a, arr[0]);
b.Increase(ref b, arr[1]);
c.Increase(ref c, arr[2]);
DangerousBuffer db = new DangerousBuffer();
db.a = -1;
db.b = -2;
db.c = -3;
long *x1 = stackalloc long[size];
long sum = 0;
if (size >= 3)
{
x1[0] = a.Value();
x1[1] = b.Value();
x1[2] = c.Value();
for (int i = 0; i < size; i++)
{
sum += x1[i];
}
}
return(sum);
}