# Milestone 6: compound assignment (`+=`, `-=`, `*=`, `/=`) and the binary
# arithmetic operators `-`, `*`, `/` with multiplicative precedence.

check_float func() i32 {
	x f64 = 10.0
	x /= 4.0 # 2.5
	x *= 2.0 # 5.0
	x -= 1.0 # 4.0
	x += 0.5 # 4.5
	if x > 4.0 {
		return 1
	}
	return 0
}

check_unsigned func() i32 {
	n u32 = 100
	n /= 7 # 14 (truncating integer division)
	n -= 4 # 10
	if n == 10 {
		return 1
	}
	return 0
}

main func() i32 {
	total i32 = 0
	total += 10 # 10
	total -= 3  # 7
	total *= 4  # 28
	total /= 2  # 14

	# binary operators honour precedence: 14 + (2 * 3) - 4 == 16
	total = total + 2 * 3 - 4

	# compound assignment as a while-loop update
	i i32 = 0
	while i < 5 : i += 1 {
		total += 1 # +5 => 21
	}

	total += check_float()    # +1 => 22
	total += check_unsigned() # +1 => 23
	return total
}