Struct floating_bar::r32 [−][src]
The 32-bit floating bar type.
Implementations
impl r32
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pub const unsafe fn new_unchecked(numer: i32, denom: u32) -> r32
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Creates a rational number without checking the values.
Safety
The values must fit in the fraction field.
pub fn new(numer: i32, denom: u32) -> Option<r32>
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Creates a rational number if the given values both fit in the fraction field.
pub fn sqrt(self) -> r32
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Calculates the approximate square root of the value.
Warning: This method can give a number that overflows easily, so use it with caution, and discard it as soon as you’re done with it.
pub fn cbrt(self) -> r32
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Calculates the approximate cube root of the value.
Warning: This method can give a number that overflows easily, so use it with caution, and discard it as soon as you’re done with it.
pub fn checked_add(self, rhs: r32) -> Option<r32>
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Checked addition. Computes self + rhs
, returning None
if overflow
occurred.
pub fn checked_mul(self, rhs: r32) -> Option<r32>
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Checked multiplication. Computes self * rhs
, returning None
if overflow occurred.
If one argument is NaN and the other is zero, this returns zero.
pub fn to_i32(self) -> Option<i32>
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Checked conversion to i32
.
Returns the numeric value as an i32
if its irreducible form has a
denominator of 1. Otherwise, returns None
.
impl r32
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pub const MAX: r32
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The highest value that can be represented by this rational type.
pub const MIN: r32
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The lowest value that can be represented by this rational type.
pub const MIN_POSITIVE: r32
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The smallest positive value that can be represented by this rational type.
pub const NAN: r32
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Not a Number (NaN).
pub fn is_nan(self) -> bool
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Returns true
if this value is NAN
and false
otherwise.
pub fn is_positive(self) -> bool
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Returns true
if self
is positive and false
if the number is zero,
negative, or NAN
.
pub fn is_negative(self) -> bool
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Returns true
if self
is negative and false
if the number is zero,
positive, or NAN
.
pub fn trunc(self) -> r32
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Returns the integer part of a number, or NaN if self
is NaN.
pub fn fract(self) -> r32
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Returns the fractional part of a number, or NaN if self
is NaN.
pub fn floor(self) -> r32
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Returns the largest integer less than or equal to a number.
pub fn ceil(self) -> r32
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Returns the smallest integer greater than or equal to a number.
pub fn round(self) -> r32
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Returns the nearest integer to a number. Round half-way cases away from zero.
pub fn abs(self) -> r32
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Computes the absolute value of self
.
pub fn signum(self) -> r32
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Returns a number that represents the sign of self
.
1
if the number is positive-1
if the number is negative0
if the number is0
NAN
if the number isNAN
.
pub fn recip(self) -> r32
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pub fn normalize(self) -> r32
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Cancels out common factors between the numerator and the denominator.
pub fn pow(self, exp: i32) -> r32
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Checked exponentiation. Computes self.pow(exp)
, returning None
if
overflow occurred.
pub fn max(self, other: r32) -> r32
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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
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Returns the minimum of the two numbers.
If one of the arguments is NaN
, then the other argument is returned.
pub fn checked_neg(self) -> Option<r32>
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Checked rational negation. Computes -self
, returning None
if the
numerator would overflow.
pub fn checked_abs(self) -> Option<r32>
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Checked absolute value. Computes self.abs()
, returning None
if the
numerator would overflow.
pub fn checked_recip(self) -> Option<r32>
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Checked reciprocal. Computes 1/self
, returning None
if the
numerator is zero.
pub fn checked_pow(self, exp: i32) -> Option<r32>
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Checked exponentiation. Computes self.pow(exp)
, returning None
if
overflow occurred.
pub fn checked_sub(self, rhs: r32) -> Option<r32>
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Checked subtraction. Computes self - rhs
, returning None
if
overflow occurred.
pub fn checked_div(self, rhs: r32) -> Option<r32>
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Checked rational division. Computes self / rhs
, returning None
if
rhs == 0
or the division results in overflow.
pub fn checked_rem(self, rhs: r32) -> Option<r32>
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Checked rational remainder. Computes self % rhs
, returning None
if
rhs == 0
or the division results in overflow.
pub fn to_bits(self) -> u32
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Raw transmutation to u64
.
Useful if you need access to the payload bits of a NaN value.
pub fn from_bits(bits: u32) -> r32
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Raw transmutation from u64
.
Trait Implementations
impl Add<r32> for r32
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type Output = r32
The resulting type after applying the +
operator.
fn add(self, other: r32) -> Self::Output
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impl AddAssign<r32> for r32
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fn add_assign(&mut self, other: r32)
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impl Clone for r32
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impl Copy for r32
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impl Debug for r32
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impl Default for r32
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impl Display for r32
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impl Div<r32> for r32
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type Output = r32
The resulting type after applying the /
operator.
fn div(self, other: r32) -> Self::Output
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impl DivAssign<r32> for r32
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fn div_assign(&mut self, other: r32)
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impl Eq for r32
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impl From<f32> for r32
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impl From<i16> for r32
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impl From<i8> for r32
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impl From<r32> for r64
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impl From<u16> for r32
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impl From<u8> for r32
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impl FromStr for r32
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type Err = ParseRatioErr
The associated error which can be returned from parsing.
fn from_str(src: &str) -> Result<Self, Self::Err>
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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 contain a valid rational
number. Otherwise, Ok(n)
where n
is the floating-bar number
represented by src
.
impl Mul<r32> for r32
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type Output = r32
The resulting type after applying the *
operator.
fn mul(self, other: r32) -> Self::Output
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impl MulAssign<r32> for r32
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fn mul_assign(&mut self, other: r32)
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impl Neg for r32
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type Output = r32
The resulting type after applying the -
operator.
fn neg(self) -> Self::Output
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impl PartialEq<r32> for r32
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impl PartialOrd<r32> for r32
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fn partial_cmp(&self, other: &r32) -> Option<Ordering>
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#[must_use]pub fn lt(&self, other: &Rhs) -> bool
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#[must_use]pub fn le(&self, other: &Rhs) -> bool
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#[must_use]pub fn gt(&self, other: &Rhs) -> bool
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#[must_use]pub fn ge(&self, other: &Rhs) -> bool
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impl Rem<r32> for r32
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type Output = r32
The resulting type after applying the %
operator.
fn rem(self, other: r32) -> Self::Output
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impl RemAssign<r32> for r32
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fn rem_assign(&mut self, other: r32)
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impl StructuralEq for r32
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impl Sub<r32> for r32
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type Output = r32
The resulting type after applying the -
operator.
fn sub(self, other: r32) -> Self::Output
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impl SubAssign<r32> for r32
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fn sub_assign(&mut self, other: r32)
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Auto Trait Implementations
impl RefUnwindSafe for r32
impl Send for r32
impl Sync for r32
impl Unpin for r32
impl UnwindSafe for r32
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,