pub const FpClass = packed struct(u32) {
    signaling_nan: bool = false,
    quiet_nan: bool = false,
    negative_infinity: bool = false,
    negative_normal: bool = false,
    negative_subnormal: bool = false,
    negative_zero: bool = false,
    positive_zero: bool = false,
    positive_subnormal: bool = false,
    positive_normal: bool = false,
    positive_infinity: bool = false,
    _: u22 = 0,

    pub const all = FpClass{
        .signaling_nan = true,
        .quiet_nan = true,
        .negative_infinity = true,
        .negative_normal = true,
        .negative_subnormal = true,
        .negative_zero = true,
        .positive_zero = true,
        .positive_subnormal = true,
        .positive_normal = true,
        .positive_infinity = true,
    };

    pub const nan = FpClass{ .signaling_nan = true, .quiet_nan = true };
    pub const snan = FpClass{ .signaling_nan = true };
    pub const qnan = FpClass{ .quiet_nan = true };

    pub const inf = FpClass{ .negative_infinity = true, .positive_infinity = true };
    pub const ninf = FpClass{ .negative_infinity = true };
    pub const pinf = FpClass{ .positive_infinity = true };

    pub const zero = FpClass{ .positive_zero = true, .negative_zero = true };
    pub const nzero = FpClass{ .negative_zero = true };
    pub const pzero = FpClass{ .positive_zero = true };

    pub const sub = FpClass{ .positive_subnormal = true, .negative_subnormal = true };
    pub const nsub = FpClass{ .negative_subnormal = true };
    pub const psub = FpClass{ .positive_subnormal = true };

    pub const norm = FpClass{ .positive_normal = true, .negative_normal = true };
    pub const nnorm = FpClass{ .negative_normal = true };
    pub const pnorm = FpClass{ .positive_normal = true };
}