# Milestone 5: boolean while loops with optional post-iteration updates.

return_before_update func() i32 {
	i i32 = 0
	while true : i = i + 1 {
		return i
	}
}

main func() i32 {
	total i32 = 0

	# ordinary condition and update
	i u32 = 0
	while i < 5 : i = i + 1 {
		total = total + 2
	}

	# equivalent parenthesized header
	j u32 = 0
	while (j < 4) : (j = j + 1) {
		total = total + 3
	}

	# nested loops and body-local storage
	outer u32 = 0
	while outer < 2 : outer = outer + 1 {
		inner u32 = 0
		while inner < 3 : inner = inner + 1 {
			total = total + 2
		}
	}

	# Body-local storage stays scoped to the body. The update still targets
	# the mutable k declared before the loop.
	k u32 = 0
	while k < 4 : k = k + 1 {
		body_k u32 = 100
		if body_k == 100 {
			total = total + 2
		}
	}

	# zero iterations
	while false {
		total = total + 100
	}

	# A return exits before the update clause.
	total = total + return_before_update()
	return total
}