Struct Ieee64 

pub struct Ieee64(/* private fields */);

Software IEEE-754 binary64 (53-bit significand, 11-bit exponent). Stored as u64 bits.

Implementations

impl Ieee64

pub const ZERO: Ieee64

(+0).

pub const fn from_bits(bits: u64) -> Ieee64

Build from the IEEE bit pattern.

pub const fn to_bits(self) -> u64

Return the IEEE bit pattern.

pub fn from_i32(n: i32) -> Ieee64

Integer (n) converted with IEEE rounding.

pub fn classify(self) -> FpCategory

Classify the value.

pub fn is_nan(self) -> bool

True if the value is NaN.

pub fn is_infinite(self) -> bool

True if the value is (\pm\infty).

pub fn is_finite(self) -> bool

True if the value is finite (including zero and subnormals).

pub fn is_zero(self) -> bool

True if the value is (\pm 0).

pub fn is_subnormal(self) -> bool

True if the value is subnormal.

pub fn is_sign_negative(self) -> bool

True if the sign bit is set.

pub fn err(self) -> Option<Error>

Associated error on NaN (InvalidArgument); None otherwise.

pub fn add(self, rhs: Ieee64) -> Ieee64

IEEE add (to-nearest, ties to even).

pub fn sub(self, rhs: Ieee64) -> Ieee64

IEEE sub.

pub fn mul(self, rhs: Ieee64) -> Ieee64

IEEE mul.

pub fn div(self, rhs: Ieee64) -> Ieee64

IEEE div. (x/0) is (\pm\infty); (0/0) is NaN.

pub fn sqrt(self) -> Ieee64

IEEE sqrt. Negative finite → NaN.

pub fn mul_add(self, b: Ieee64, c: Ieee64) -> Ieee64

IEEE fused multiply-add (a\cdot b + c).

pub fn next_up(self) -> Ieee64

Next representable value toward (+\infty).

pub fn next_down(self) -> Ieee64

Next representable value toward (-\infty).

pub fn next_after(self, other: Ieee64) -> Ieee64

Next representable value toward other.

pub fn frexp(self) -> (Ieee64, i32)

Split as (m\cdot 2^e) with (m\in[1/2,1)) (or a special).

pub fn neg(self) -> Ieee64

Negate (flip the sign bit).

pub fn abs(self) -> Ieee64

Absolute value.

pub fn copysign(self, sign: Ieee64) -> Ieee64

Copy the sign of sign onto self.

pub fn sign(self) -> Option<Sign>

Sign, or None if NaN.

pub fn cmp(self, other: Ieee64) -> Option<Ordering>

Compare; None if either is NaN. (+0 = -0).

impl Ieee64

pub const NAN: Ieee64

Canonical quiet NaN.

pub const INFINITY: Ieee64

(+\infty).

pub const NEG_INFINITY: Ieee64

(-\infty).

pub const NEG_ZERO: Ieee64

(-0).

impl Ieee64

pub fn to_exact(self, p: usize) -> ExactNum

Widen to ExactNum at precision p (use at least 64 bits).

pub fn from_exact(x: &ExactNum) -> Ieee64

Round an ExactNum to binary64 (to-nearest, ties to even).

pub fn map_exact<F>(self, p: usize, _rm: RoundingMode, op: F) -> Ieee64

where F: FnOnce(&ExactNum) -> ExactNum,

Widen then apply op, then IEEE-round back.

Trait Implementations

impl Add for Ieee64

type Output = Ieee64

The resulting type after applying the + operator.

fn add(self, rhs: Ieee64) -> Ieee64

Performs the + operation.

impl Clone for Ieee64

fn clone(&self) -> Ieee64

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Ieee64

impl Debug for Ieee64

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Div for Ieee64

type Output = Ieee64

The resulting type after applying the / operator.

fn div(self, rhs: Ieee64) -> Ieee64

Performs the / operation.

impl Mul for Ieee64

type Output = Ieee64

The resulting type after applying the * operator.

fn mul(self, rhs: Ieee64) -> Ieee64

Performs the * operation.

impl Neg for Ieee64

type Output = Ieee64

The resulting type after applying the - operator.

fn neg(self) -> Ieee64

Performs the unary - operation.

impl PartialEq for Ieee64

fn eq(&self, other: &Ieee64) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Sub for Ieee64

type Output = Ieee64

The resulting type after applying the - operator.

fn sub(self, rhs: Ieee64) -> Ieee64

Performs the - operation.