source: doc/theses/rob_schluntz_MMath/examples/tuples/named.c @ aa3bfc3

typedef [int x, int y] Point2D;
Point2D p1, p2;
int main() {
  p1.x + p1.y + p2.x + p2.y;
  p1.0 + p1.1 + p2.0 + p2.1;  // equivalent
}