Is there a way of applying a function to each member of a struct in c++?

Question

You have a simple struct, say:

typedef struct rect
{
    int x;
    int y;
    int width;
    int height;
}
rect;

And you want to multiply

Answer 1

horrific hack

int *arr = (int*)&my_rect;
for (int i = 0; i < sizeof(rect)/sizeof(int); i++)
{
     arr[i] *= factor;
}