include rt;
include run;
include icon;
int total = 1;
fn main() {
	// step a fragment that writes an isolated global and a bound one, reading both after each step
	let q = run.tokens("int n = 5; scale = scale * n; total = total + scale; return total;");
	let frame = icon.begin(q);
	icon.set_global(frame, "scale", 2);
	icon.bind_global(frame, "total");
	icon.step(frame); rt.put_n(icon.local(frame, "n")); rt.put_c(' ');
	icon.step(frame); rt.put_n(icon.global(frame, "scale")); rt.put_c(' ');
	icon.step(frame); rt.put_n(icon.global(frame, "total")); rt.put_c(' '); rt.put_n(total); rt.put_c(' ');
	icon.step(frame); rt.put_n(icon.result(frame)); rt.put_c(' ');
	// a name the frame never bound reads as 0 with error status 2
	rt.put_n(icon.global(frame, "missing")); rt.put_c(' '); rt.put_n(icon.error()); rt.put_c(10);
	icon.close(d*frame);
	return 0;
}