//ww:run
package main;
import types;
export fn main() i32 = {
	let lo: uint = types.UINT_MIN;
	if (lo != 0) { return 1; };
	let hi: uint = types.UINT_MAX;
	if (hi != 18446744073709551615) { return 2; };
	if (hi: u64 != types.U64_MAX) { return 3; };
	if (hi + 1 != 0) { return 4; };
	return 0;
};