class Program {

	void test_assert(mixed $param) {
		assert("is_bool($param);");
	}

	public void main() {
		callback $assert_fail = void(string $file, int $line, string $code) {
			print("Assertion failed ...\n");
		};
		assert_options(ASSERT_ACTIVE, true);
		assert_options(ASSERT_BAIL, false);
		assert_options(ASSERT_WARNING, false);
		assert_options(ASSERT_CALLBACK, $assert_fail);
		$this->test_assert(true);
		$this->test_assert(1);
	}

}