Struct Format

pub struct Format {
    pub signed: bool,
    pub exp: u8,
    pub mant: usize,
    pub excess: u32,
    pub interpret: Interpret,
}

Format of the float, storing the number of bit for each fields.

Fields

signed: bool

Whether the float is signed or not, if true a bit will be assigned for the sign.

exp: u8

Number of bits for the exponent. Currently support up to 31 bits only.

mant: usize

Number of bits for the mantissa (significand).

excess: u32

The excess (offset, biased) value for the exponent. This is the value that is subtracted from the exponent to get the actual exponent.

interpret: Interpret

Implementations

impl Format

pub fn new(exp: u8, mant: usize, excess: u32) -> Format

Create from the given values for exp, mant, and excess, default to signed.

pub fn new_unsigned(exp: u8, mant: usize, excess: u32) -> Format

Create from the given values for exp, mant, and excess, default to unsigned.

pub fn new_with_sign(signed: bool, exp: u8, mant: usize, excess: u32) -> Format

Create from the given values for signed, exp, mant, and excess.

pub fn new_ieee_excess(exp: u8, mant: usize) -> Format

Create from the given values for exp and mant, default to signed. The excess value is set to (1 << (exp - 1)) - 1 (1 less than 2 to the power of exp - 1).

pub fn new_ieee_excess_with_sign(signed: bool, exp: u8, mant: usize) -> Format

Create from the given values for signed, exp, and mant. The excess value is set to (1 << (exp - 1)) - 1 (1 less than 2 to the power of exp - 1).

pub fn len(&self) -> usize

Get the number of bits for the format.

Trait Implementations

impl Clone for Format

fn clone(&self) -> Format

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Format

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

Formats the value using the given formatter.

impl IeeeBinary for Format

fn ieee_binary32() -> Self

The exponent is 8 bits and biased by 127, and the mantissa is 23 bits.

fn ieee_binary64() -> Self

The exponent is 11 bits and biased by 1023, and the mantissa is 52 bits.

impl PartialEq for Format

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Format