Float256

public struct System.Float256 : System.ISignedNumber<f256>, System.IHashable<f256>, System.IComparable<f256>, System.IToString
{
    // The largest finite f256, and the smallest (its negative).
    static constant MaxValue: f256
    static constant MinValue: f256
    // The smallest f256 above zero (a subnormal).
    static constant Epsilon: f256
    // Not a number (quiet, positive), and the infinities.
    static constant NaN: f256
    static constant PositiveInfinity: f256
    static constant NegativeInfinity: f256
    static method FromF64(value: f64) -> f256
    static method ToF64(value: f256) -> f64
    // As text by a format: F, N, E, P, G, R and a precision; the fixed formats show up to 71 digits.
    method ToString(format: System.String<u8>) -> System.String<u8>
    // The shortest text that reads back as the same number.
    method ToString() -> System.String<u8>
    // A total order: the usual one, nan above every number and equal to itself, -0 equal to +0 (what sorting uses).
    method CompareTo(other: f256) -> i32
    method Equals(other: f256) -> bool
    method Hash() -> u64
    // The IEEE 754 bits of the number, and back.
    static method Bits(value: f256) -> u256
    static method FromBits(bits: u256) -> f256
    static method IsNaN(x: f256) -> bool
    static method IsInfinity(x: f256) -> bool
    static method IsFinite(x: f256) -> bool
    // The number `text` writes (digits, a point, an exponent; `nan`, `inf`, `-inf`); a FormatError otherwise.
    static method Parse(text: System.String<u8>) -> f256
    // The number `text` writes, or null when it writes none.
    static method TryParse(text: System.String<u8>) -> f256?
    // Digits × 10^exponent: exact (one correctly rounded operation) up to 71 significant digits and a power
    // of ten up to 10^102, which the type holds exactly; beyond that, within a few units in the last place.
    static method Read(units: u8[]) -> f256
    // 10^power by squaring (exact up to 10^102).
    static method PowerOfTen(power: i32) -> f256
    static property Zero: f256
    static property One: f256
    static property NegativeOne: f256
}