core :: union_find
union–find algorithm using an efficient disjoint-set data structure
module blink is example
import bcm2835
assert bcm2835_init else print "Failed to init"
var out = new RPiPin.p1_11
out.fsel = new FunctionSelect.outp
for i in [0..1000[ do
	out.write(true)
	500.bcm2835_delay
	out.write(false)
	500.bcm2835_delay
end
bcm2835_close
lib/bcm2835/examples/blink.nit:17,1--33,13