//ww:run
package main;
import math;
export fn main() i32 = {
	if (math.NAN_BITS != 0x7FF8000000000000u64) { return 1; };
	if (math.INF_BITS != 0x7FF0000000000000u64) { return 2; };
	let n: f64 = math.f64frombits(math.NAN_BITS);
	if (!math.isnan(n)) { return 3; };
	if (math.isnan(1.0)) { return 4; };
	let i: f64 = math.f64frombits(math.INF_BITS);
	if (!math.isinf(i)) { return 5; };
	if (!math.isinf(-i)) { return 6; };
	if (math.isinf(1.23)) { return 7; };
	return 0;
};