Struct floating_bar::r32

pub struct r32(_);

The 32-bit floating bar type.

Methods

impl r32

pub fn numer(self) -> u32

Returns the numerator value for this rational number.

pub fn denom(self) -> u32

Returns the denominator value for this rational number.

pub fn floor(self) -> r32

Returns the largest integer less than or equal to a number.

pub fn ceil(self) -> r32

Returns the smallest integer greater than or equal to a number.

pub fn round(self) -> r32

Returns the nearest integer to a number. Round half-way cases away from zero.

pub fn trunc(self) -> r32

Returns the integer part of a number.

pub fn fract(self) -> r32

Returns the fractional part of a number.

pub fn abs(self) -> r32

Computes the absolute value of self. Returns NaN if the number is NaN.

pub fn signum(self) -> r32

Returns a number that represents the sign of self.

• 1 if the number is positive
• -1 if the number is negative
• 0 if the number is +0, -0, or NaN

pub fn pow(self, p: i32) -> r32

Raises a number to an integer power.

pub fn checked_pow(self, p: i32) -> Option<r32>

Raises a number to an integer power.

pub fn checked_sqrt(self) -> Option<r32>

Takes the checked square root of a number.

If self is positive and both the numerator and denominator are perfect squares, this returns their square root. Otherwise, returns None.

pub fn is_nan(self) -> bool

Returns true if this value is NaN and false otherwise.

pub fn is_normal(self) -> bool

Returns true if the number is neither zero, subnormal, or NaN.

pub fn is_positive(self) -> bool

Returns true if and only if self has a positive sign, including +0.0 (but not NaNs with positive sign bit).

pub fn is_negative(self) -> bool

Returns true if and only if self has a negative sign, including -0.0 (but not NaNs with negative sign bit).

pub fn recip(self) -> r32

Takes the reciprocal (inverse) of a number, 1/x.

Panics

Panics when trying to set a numerator of zero as denominator.

pub fn max(self, other: r32) -> r32

Returns the maximum of the two numbers.

If one of the arguments is NaN, then the other argument is returned.

pub fn min(self, other: r32) -> r32

Returns the minimum of the two numbers.

If one of the arguments is NaN, then the other argument is returned.

pub fn to_bits(self) -> u32

Raw transmutation to u32.

pub fn from_bits(bits: u32) -> r32

Raw transmutation from u32.

pub fn simplify(self) -> r32

Cancels out common factors between the numerator and the denominator.

Trait Implementations

impl Into<f32> for r32

fn into(self) -> f32

Performs the conversion.

impl Into<f64> for r32

fn into(self) -> f64

Performs the conversion.

impl Eq for r32

impl Copy for r32

impl PartialOrd<r32> for r32

fn partial_cmp(&self, other: &r32) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]

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

This method tests less than (for self and other) and is used by the < operator.

#[must_use]

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]

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

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Default for r32

fn default() -> r32

Returns the "default value" for a type.

impl PartialEq<r32> for r32

fn eq(&self, other: &r32) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]

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

This method tests for !=.

impl From<u8> for r32

fn from(v: u8) -> Self

Performs the conversion.

impl From<i8> for r32

fn from(v: i8) -> Self

Performs the conversion.

impl From<u16> for r32

fn from(v: u16) -> Self

Performs the conversion.

impl From<i16> for r32

fn from(v: i16) -> Self

Performs the conversion.

impl From<r32> for r64

fn from(v: r32) -> Self

Performs the conversion.

impl Clone for r32

fn clone(&self) -> r32

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Display for r32

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Debug for r32

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Add<r32> for r32

type Output = r32

The resulting type after applying the + operator.

fn add(self, other: r32) -> r32

Performs the + operation.

impl Sub<r32> for r32

type Output = r32

The resulting type after applying the - operator.

fn sub(self, other: r32) -> r32

Performs the - operation.

impl Mul<r32> for r32

type Output = r32

The resulting type after applying the * operator.

fn mul(self, other: r32) -> r32

Performs the * operation.

impl Div<r32> for r32

type Output = r32

The resulting type after applying the / operator.

fn div(self, other: r32) -> r32

Performs the / operation.

impl Rem<r32> for r32

type Output = r32

The resulting type after applying the % operator.

fn rem(self, other: r32) -> r32

Performs the % operation.

impl Neg for r32

type Output = r32

The resulting type after applying the - operator.

fn neg(self) -> Self::Output

Performs the unary - operation.

impl Hash for r32

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl FromStr for r32

type Err = ParseRatioErr

The associated error which can be returned from parsing.

fn from_str(src: &str) -> Result<Self, Self::Err>

Converts a string in base 10 to a rational.

This function accepts strings such as

• '157/50'
• '-157/50'
• '25', or equivalently, '25/1'
• 'NaN'

Leading and trailing whitespace represent an error.

Return value

Err(ParseRatioError) if the string did not represent a valid number. Otherwise, Ok(n) where n is the floating-bar number represented by src.