Struct num_rational::Ratio
[−]
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pub struct Ratio<T> { /* fields omitted */ }
Represents the ratio between 2 numbers.
Methods
impl<T: Clone + Integer> Ratio<T>
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pub fn new(numer: T, denom: T) -> Ratio<T>
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Creates a new Ratio
. Fails if denom
is zero.
pub fn from_integer(t: T) -> Ratio<T>
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Creates a Ratio
representing the integer t
.
pub fn new_raw(numer: T, denom: T) -> Ratio<T>
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Creates a Ratio
without checking for denom == 0
or reducing.
pub fn to_integer(&self) -> T
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Converts to an integer, rounding towards zero.
pub fn numer<'a>(&'a self) -> &'a T
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Gets an immutable reference to the numerator.
pub fn denom<'a>(&'a self) -> &'a T
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Gets an immutable reference to the denominator.
pub fn is_integer(&self) -> bool
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Returns true if the rational number is an integer (denominator is 1).
pub fn reduced(&self) -> Ratio<T>
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Returns a reduced copy of self.
In general, it is not necessary to use this method, as the only
method of procuring a non-reduced fraction is through new_raw
.
pub fn recip(&self) -> Ratio<T>
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Returns the reciprocal.
Fails if the Ratio
is zero.
pub fn floor(&self) -> Ratio<T>
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Rounds towards minus infinity.
pub fn ceil(&self) -> Ratio<T>
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Rounds towards plus infinity.
pub fn round(&self) -> Ratio<T>
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Rounds to the nearest integer. Rounds half-way cases away from zero.
pub fn trunc(&self) -> Ratio<T>
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Rounds towards zero.
pub fn fract(&self) -> Ratio<T>
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Returns the fractional part of a number, with division rounded towards zero.
Satisfies self == self.trunc() + self.fract()
.
impl<T: Clone + Integer + PrimInt> Ratio<T>
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impl Ratio<BigInt>
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pub fn from_float<T: Float>(f: T) -> Option<BigRational>
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Converts a float into a rational number.
impl<T: Integer + Signed + Bounded + NumCast + Clone> Ratio<T>
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Trait Implementations
impl<T: Clone + Integer + NumAssign> AddAssign for Ratio<T>
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fn add_assign(&mut self, other: Ratio<T>)
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Performs the +=
operation.
impl<T: Clone + Integer + NumAssign> DivAssign for Ratio<T>
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fn div_assign(&mut self, other: Ratio<T>)
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Performs the /=
operation.
impl<T: Clone + Integer + NumAssign> MulAssign for Ratio<T>
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fn mul_assign(&mut self, other: Ratio<T>)
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Performs the *=
operation.
impl<T: Clone + Integer + NumAssign> RemAssign for Ratio<T>
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fn rem_assign(&mut self, other: Ratio<T>)
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Performs the %=
operation.
impl<T: Clone + Integer + NumAssign> SubAssign for Ratio<T>
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fn sub_assign(&mut self, other: Ratio<T>)
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Performs the -=
operation.
impl<T: Clone + Integer + NumAssign> AddAssign<T> for Ratio<T>
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fn add_assign(&mut self, other: T)
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Performs the +=
operation.
impl<T: Clone + Integer + NumAssign> DivAssign<T> for Ratio<T>
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fn div_assign(&mut self, other: T)
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Performs the /=
operation.
impl<T: Clone + Integer + NumAssign> MulAssign<T> for Ratio<T>
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fn mul_assign(&mut self, other: T)
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Performs the *=
operation.
impl<T: Clone + Integer + NumAssign> RemAssign<T> for Ratio<T>
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fn rem_assign(&mut self, other: T)
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Performs the %=
operation.
impl<T: Clone + Integer + NumAssign> SubAssign<T> for Ratio<T>
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fn sub_assign(&mut self, other: T)
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Performs the -=
operation.
impl<'a, T: Clone + Integer + NumAssign> AddAssign<&'a Ratio<T>> for Ratio<T>
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fn add_assign(&mut self, other: &Ratio<T>)
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Performs the +=
operation.
impl<'a, T: Clone + Integer + NumAssign> AddAssign<&'a T> for Ratio<T>
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fn add_assign(&mut self, other: &T)
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Performs the +=
operation.
impl<'a, T: Clone + Integer + NumAssign> DivAssign<&'a Ratio<T>> for Ratio<T>
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fn div_assign(&mut self, other: &Ratio<T>)
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Performs the /=
operation.
impl<'a, T: Clone + Integer + NumAssign> DivAssign<&'a T> for Ratio<T>
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fn div_assign(&mut self, other: &T)
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Performs the /=
operation.
impl<'a, T: Clone + Integer + NumAssign> MulAssign<&'a Ratio<T>> for Ratio<T>
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fn mul_assign(&mut self, other: &Ratio<T>)
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Performs the *=
operation.
impl<'a, T: Clone + Integer + NumAssign> MulAssign<&'a T> for Ratio<T>
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fn mul_assign(&mut self, other: &T)
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Performs the *=
operation.
impl<'a, T: Clone + Integer + NumAssign> RemAssign<&'a Ratio<T>> for Ratio<T>
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fn rem_assign(&mut self, other: &Ratio<T>)
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Performs the %=
operation.
impl<'a, T: Clone + Integer + NumAssign> RemAssign<&'a T> for Ratio<T>
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fn rem_assign(&mut self, other: &T)
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Performs the %=
operation.
impl<'a, T: Clone + Integer + NumAssign> SubAssign<&'a Ratio<T>> for Ratio<T>
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fn sub_assign(&mut self, other: &Ratio<T>)
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Performs the -=
operation.
impl<'a, T: Clone + Integer + NumAssign> SubAssign<&'a T> for Ratio<T>
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fn sub_assign(&mut self, other: &T)
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Performs the -=
operation.
impl<T: Copy> Copy for Ratio<T>
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impl<T: Clone> Clone for Ratio<T>
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fn clone(&self) -> Ratio<T>
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0[src]
Performs copy-assignment from source
. Read more
impl<T: Debug> Debug for Ratio<T>
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fn fmt(&self, __arg_0: &mut Formatter) -> Result
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Formats the value using the given formatter. Read more
impl<T: Encodable> Encodable for Ratio<T>
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fn encode<__ST: Encoder>(&self, __arg_0: &mut __ST) -> Result<(), __ST::Error>
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Serialize a value using an Encoder
.
impl<T: Decodable> Decodable for Ratio<T>
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fn decode<__DT: Decoder>(__arg_0: &mut __DT) -> Result<Ratio<T>, __DT::Error>
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Deserialize a value using a Decoder
.
impl<T> From<T> for Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
impl<T> From<(T, T)> for Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
impl<T: Clone + Integer> Ord for Ratio<T>
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fn cmp(&self, other: &Self) -> Ordering
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This method returns an Ordering
between self
and other
. Read more
fn max(self, other: Self) -> Self
1.21.0[src]
Compares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self
1.21.0[src]
Compares and returns the minimum of two values. Read more
impl<T: Clone + Integer> PartialOrd for Ratio<T>
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fn partial_cmp(&self, other: &Self) -> Option<Ordering>
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This method returns an ordering between self
and other
values if one exists. Read more
fn lt(&self, other: &Rhs) -> bool
1.0.0[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
1.0.0[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
1.0.0[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
1.0.0[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<T: Clone + Integer> PartialEq for Ratio<T>
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fn eq(&self, other: &Self) -> bool
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This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &Rhs) -> bool
1.0.0[src]
This method tests for !=
.
impl<T: Clone + Integer> Eq for Ratio<T>
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impl<T: Clone + Integer + Hash> Hash for Ratio<T>
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fn hash<H: Hasher>(&self, state: &mut H)
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Feeds this value into the given [Hasher
]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
Feeds a slice of this type into the given [Hasher
]. Read more
impl<'a, 'b, T: Clone + Integer> Mul<&'b Ratio<T>> for &'a Ratio<T>
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type Output = Ratio<T>
The resulting type after applying the *
operator.
fn mul(self, other: &'b Ratio<T>) -> Ratio<T>
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Performs the *
operation.
impl<'a, 'b, T: Clone + Integer> Mul<&'b T> for &'a Ratio<T>
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type Output = Ratio<T>
The resulting type after applying the *
operator.
fn mul(self, other: &'b T) -> Ratio<T>
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Performs the *
operation.
impl<'a, T> Mul<Ratio<T>> for &'a Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the *
operator.
fn mul(self, other: Ratio<T>) -> Ratio<T>
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Performs the *
operation.
impl<'a, T> Mul<T> for &'a Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the *
operator.
fn mul(self, other: T) -> Ratio<T>
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Performs the *
operation.
impl<'a, T> Mul<&'a Ratio<T>> for Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the *
operator.
fn mul(self, other: &Ratio<T>) -> Ratio<T>
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Performs the *
operation.
impl<'a, T> Mul<&'a T> for Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the *
operator.
fn mul(self, other: &T) -> Ratio<T>
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Performs the *
operation.
impl<T> Mul<Ratio<T>> for Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the *
operator.
fn mul(self, rhs: Ratio<T>) -> Ratio<T>
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Performs the *
operation.
impl<T> Mul<T> for Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the *
operator.
fn mul(self, rhs: T) -> Ratio<T>
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Performs the *
operation.
impl<'a, 'b, T: Clone + Integer> Div<&'b Ratio<T>> for &'a Ratio<T>
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type Output = Ratio<T>
The resulting type after applying the /
operator.
fn div(self, other: &'b Ratio<T>) -> Ratio<T>
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Performs the /
operation.
impl<'a, 'b, T: Clone + Integer> Div<&'b T> for &'a Ratio<T>
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type Output = Ratio<T>
The resulting type after applying the /
operator.
fn div(self, other: &'b T) -> Ratio<T>
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Performs the /
operation.
impl<'a, T> Div<Ratio<T>> for &'a Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the /
operator.
fn div(self, other: Ratio<T>) -> Ratio<T>
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Performs the /
operation.
impl<'a, T> Div<T> for &'a Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the /
operator.
fn div(self, other: T) -> Ratio<T>
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Performs the /
operation.
impl<'a, T> Div<&'a Ratio<T>> for Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the /
operator.
fn div(self, other: &Ratio<T>) -> Ratio<T>
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Performs the /
operation.
impl<'a, T> Div<&'a T> for Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the /
operator.
fn div(self, other: &T) -> Ratio<T>
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Performs the /
operation.
impl<T> Div<Ratio<T>> for Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the /
operator.
fn div(self, rhs: Ratio<T>) -> Ratio<T>
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Performs the /
operation.
impl<T> Div<T> for Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the /
operator.
fn div(self, rhs: T) -> Ratio<T>
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Performs the /
operation.
impl<'a, 'b, T: Clone + Integer> Add<&'b Ratio<T>> for &'a Ratio<T>
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type Output = Ratio<T>
The resulting type after applying the +
operator.
fn add(self, other: &'b Ratio<T>) -> Ratio<T>
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Performs the +
operation.
impl<'a, 'b, T: Clone + Integer> Add<&'b T> for &'a Ratio<T>
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type Output = Ratio<T>
The resulting type after applying the +
operator.
fn add(self, other: &'b T) -> Ratio<T>
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Performs the +
operation.
impl<'a, T> Add<Ratio<T>> for &'a Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the +
operator.
fn add(self, other: Ratio<T>) -> Ratio<T>
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Performs the +
operation.
impl<'a, T> Add<T> for &'a Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the +
operator.
fn add(self, other: T) -> Ratio<T>
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Performs the +
operation.
impl<'a, T> Add<&'a Ratio<T>> for Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the +
operator.
fn add(self, other: &Ratio<T>) -> Ratio<T>
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Performs the +
operation.
impl<'a, T> Add<&'a T> for Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the +
operator.
fn add(self, other: &T) -> Ratio<T>
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Performs the +
operation.
impl<T: Clone + Integer> Add<Ratio<T>> for Ratio<T>
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type Output = Ratio<T>
The resulting type after applying the +
operator.
fn add(self, rhs: Ratio<T>) -> Ratio<T>
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Performs the +
operation.
impl<T: Clone + Integer> Add<T> for Ratio<T>
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type Output = Ratio<T>
The resulting type after applying the +
operator.
fn add(self, rhs: T) -> Ratio<T>
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Performs the +
operation.
impl<'a, 'b, T: Clone + Integer> Sub<&'b Ratio<T>> for &'a Ratio<T>
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type Output = Ratio<T>
The resulting type after applying the -
operator.
fn sub(self, other: &'b Ratio<T>) -> Ratio<T>
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Performs the -
operation.
impl<'a, 'b, T: Clone + Integer> Sub<&'b T> for &'a Ratio<T>
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type Output = Ratio<T>
The resulting type after applying the -
operator.
fn sub(self, other: &'b T) -> Ratio<T>
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Performs the -
operation.
impl<'a, T> Sub<Ratio<T>> for &'a Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the -
operator.
fn sub(self, other: Ratio<T>) -> Ratio<T>
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Performs the -
operation.
impl<'a, T> Sub<T> for &'a Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the -
operator.
fn sub(self, other: T) -> Ratio<T>
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Performs the -
operation.
impl<'a, T> Sub<&'a Ratio<T>> for Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the -
operator.
fn sub(self, other: &Ratio<T>) -> Ratio<T>
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Performs the -
operation.
impl<'a, T> Sub<&'a T> for Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the -
operator.
fn sub(self, other: &T) -> Ratio<T>
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Performs the -
operation.
impl<T: Clone + Integer> Sub<Ratio<T>> for Ratio<T>
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type Output = Ratio<T>
The resulting type after applying the -
operator.
fn sub(self, rhs: Ratio<T>) -> Ratio<T>
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Performs the -
operation.
impl<T: Clone + Integer> Sub<T> for Ratio<T>
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type Output = Ratio<T>
The resulting type after applying the -
operator.
fn sub(self, rhs: T) -> Ratio<T>
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Performs the -
operation.
impl<'a, 'b, T: Clone + Integer> Rem<&'b Ratio<T>> for &'a Ratio<T>
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type Output = Ratio<T>
The resulting type after applying the %
operator.
fn rem(self, other: &'b Ratio<T>) -> Ratio<T>
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Performs the %
operation.
impl<'a, 'b, T: Clone + Integer> Rem<&'b T> for &'a Ratio<T>
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type Output = Ratio<T>
The resulting type after applying the %
operator.
fn rem(self, other: &'b T) -> Ratio<T>
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Performs the %
operation.
impl<'a, T> Rem<Ratio<T>> for &'a Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the %
operator.
fn rem(self, other: Ratio<T>) -> Ratio<T>
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Performs the %
operation.
impl<'a, T> Rem<T> for &'a Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the %
operator.
fn rem(self, other: T) -> Ratio<T>
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Performs the %
operation.
impl<'a, T> Rem<&'a Ratio<T>> for Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the %
operator.
fn rem(self, other: &Ratio<T>) -> Ratio<T>
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Performs the %
operation.
impl<'a, T> Rem<&'a T> for Ratio<T> where
T: Clone + Integer,
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T: Clone + Integer,
type Output = Ratio<T>
The resulting type after applying the %
operator.
fn rem(self, other: &T) -> Ratio<T>
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Performs the %
operation.
impl<T: Clone + Integer> Rem<Ratio<T>> for Ratio<T>
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type Output = Ratio<T>
The resulting type after applying the %
operator.
fn rem(self, rhs: Ratio<T>) -> Ratio<T>
[src]
Performs the %
operation.
impl<T: Clone + Integer> Rem<T> for Ratio<T>
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type Output = Ratio<T>
The resulting type after applying the %
operator.
fn rem(self, rhs: T) -> Ratio<T>
[src]
Performs the %
operation.
impl<T> CheckedMul for Ratio<T> where
T: Clone + Integer + CheckedMul,
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T: Clone + Integer + CheckedMul,
fn checked_mul(&self, rhs: &Ratio<T>) -> Option<Ratio<T>>
[src]
Multiplies two numbers, checking for underflow or overflow. If underflow or overflow happens, None
is returned. Read more
impl<T> CheckedDiv for Ratio<T> where
T: Clone + Integer + CheckedMul,
[src]
T: Clone + Integer + CheckedMul,
fn checked_div(&self, rhs: &Ratio<T>) -> Option<Ratio<T>>
[src]
Divides two numbers, checking for underflow, overflow and division by zero. If any of that happens, None
is returned. Read more
impl<T: Clone + Integer + CheckedMul + CheckedAdd> CheckedAdd for Ratio<T>
[src]
fn checked_add(&self, rhs: &Ratio<T>) -> Option<Ratio<T>>
[src]
Adds two numbers, checking for overflow. If overflow happens, None
is returned. Read more
impl<T: Clone + Integer + CheckedMul + CheckedSub> CheckedSub for Ratio<T>
[src]
fn checked_sub(&self, rhs: &Ratio<T>) -> Option<Ratio<T>>
[src]
Subtracts two numbers, checking for underflow. If underflow happens, None
is returned. Read more
impl<T> Neg for Ratio<T> where
T: Clone + Integer + Neg<Output = T>,
[src]
T: Clone + Integer + Neg<Output = T>,
type Output = Ratio<T>
The resulting type after applying the -
operator.
fn neg(self) -> Ratio<T>
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Performs the unary -
operation.
impl<'a, T> Neg for &'a Ratio<T> where
T: Clone + Integer + Neg<Output = T>,
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T: Clone + Integer + Neg<Output = T>,
type Output = Ratio<T>
The resulting type after applying the -
operator.
fn neg(self) -> Ratio<T>
[src]
Performs the unary -
operation.
impl<T: Clone + Integer> Zero for Ratio<T>
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fn zero() -> Ratio<T>
[src]
Returns the additive identity element of Self
, 0
. Read more
fn is_zero(&self) -> bool
[src]
Returns true
if self
is equal to the additive identity.
impl<T: Clone + Integer> One for Ratio<T>
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fn one() -> Ratio<T>
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Returns the multiplicative identity element of Self
, 1
. Read more
fn is_one(&self) -> bool where
Self: PartialEq<Self>,
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Self: PartialEq<Self>,
Returns true
if self
is equal to the multiplicative identity. Read more
impl<T: Clone + Integer> Num for Ratio<T>
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type FromStrRadixErr = ParseRatioError
fn from_str_radix(s: &str, radix: u32) -> Result<Ratio<T>, ParseRatioError>
[src]
Parses numer/denom
where the numbers are in base radix
.
impl<T: Clone + Integer + Signed> Signed for Ratio<T>
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fn abs(&self) -> Ratio<T>
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Computes the absolute value. Read more
fn abs_sub(&self, other: &Ratio<T>) -> Ratio<T>
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The positive difference of two numbers. Read more
fn signum(&self) -> Ratio<T>
[src]
Returns the sign of the number. Read more
fn is_positive(&self) -> bool
[src]
Returns true if the number is positive and false if the number is zero or negative.
fn is_negative(&self) -> bool
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Returns true if the number is negative and false if the number is zero or positive.
impl<T> Display for Ratio<T> where
T: Display + Eq + One,
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T: Display + Eq + One,
fn fmt(&self, f: &mut Formatter) -> Result
[src]
Renders as numer/denom
. If denom=1, renders as numer.
impl<T: FromStr + Clone + Integer> FromStr for Ratio<T>
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type Err = ParseRatioError
The associated error which can be returned from parsing.
fn from_str(s: &str) -> Result<Ratio<T>, ParseRatioError>
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Parses numer/denom
or just numer
.
impl<T> Into<(T, T)> for Ratio<T>
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impl FromPrimitive for Ratio<BigInt>
[src]
fn from_i64(n: i64) -> Option<Self>
[src]
Convert an i64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u64(n: u64) -> Option<Self>
[src]
Convert an u64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f32(n: f32) -> Option<Self>
[src]
Convert a f32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f64(n: f64) -> Option<Self>
[src]
Convert a f64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_isize(n: isize) -> Option<Self>
[src]
Convert an isize
to return an optional value of this type. If the value cannot be represented by this value, then None
is returned. Read more
fn from_i8(n: i8) -> Option<Self>
[src]
Convert an i8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i16(n: i16) -> Option<Self>
[src]
Convert an i16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i32(n: i32) -> Option<Self>
[src]
Convert an i32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_usize(n: usize) -> Option<Self>
[src]
Convert a usize
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u8(n: u8) -> Option<Self>
[src]
Convert an u8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u16(n: u16) -> Option<Self>
[src]
Convert an u16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u32(n: u32) -> Option<Self>
[src]
Convert an u32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
impl FromPrimitive for Ratio<i8>
[src]
fn from_i64(n: i64) -> Option<Self>
[src]
Convert an i64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u64(n: u64) -> Option<Self>
[src]
Convert an u64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f32(n: f32) -> Option<Self>
[src]
Convert a f32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f64(n: f64) -> Option<Self>
[src]
Convert a f64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_isize(n: isize) -> Option<Self>
[src]
Convert an isize
to return an optional value of this type. If the value cannot be represented by this value, then None
is returned. Read more
fn from_i8(n: i8) -> Option<Self>
[src]
Convert an i8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i16(n: i16) -> Option<Self>
[src]
Convert an i16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i32(n: i32) -> Option<Self>
[src]
Convert an i32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_usize(n: usize) -> Option<Self>
[src]
Convert a usize
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u8(n: u8) -> Option<Self>
[src]
Convert an u8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u16(n: u16) -> Option<Self>
[src]
Convert an u16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u32(n: u32) -> Option<Self>
[src]
Convert an u32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
impl FromPrimitive for Ratio<i16>
[src]
fn from_i64(n: i64) -> Option<Self>
[src]
Convert an i64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u64(n: u64) -> Option<Self>
[src]
Convert an u64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f32(n: f32) -> Option<Self>
[src]
Convert a f32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f64(n: f64) -> Option<Self>
[src]
Convert a f64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_isize(n: isize) -> Option<Self>
[src]
Convert an isize
to return an optional value of this type. If the value cannot be represented by this value, then None
is returned. Read more
fn from_i8(n: i8) -> Option<Self>
[src]
Convert an i8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i16(n: i16) -> Option<Self>
[src]
Convert an i16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i32(n: i32) -> Option<Self>
[src]
Convert an i32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_usize(n: usize) -> Option<Self>
[src]
Convert a usize
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u8(n: u8) -> Option<Self>
[src]
Convert an u8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u16(n: u16) -> Option<Self>
[src]
Convert an u16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u32(n: u32) -> Option<Self>
[src]
Convert an u32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
impl FromPrimitive for Ratio<i32>
[src]
fn from_i64(n: i64) -> Option<Self>
[src]
Convert an i64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u64(n: u64) -> Option<Self>
[src]
Convert an u64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f32(n: f32) -> Option<Self>
[src]
Convert a f32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f64(n: f64) -> Option<Self>
[src]
Convert a f64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_isize(n: isize) -> Option<Self>
[src]
Convert an isize
to return an optional value of this type. If the value cannot be represented by this value, then None
is returned. Read more
fn from_i8(n: i8) -> Option<Self>
[src]
Convert an i8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i16(n: i16) -> Option<Self>
[src]
Convert an i16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i32(n: i32) -> Option<Self>
[src]
Convert an i32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_usize(n: usize) -> Option<Self>
[src]
Convert a usize
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u8(n: u8) -> Option<Self>
[src]
Convert an u8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u16(n: u16) -> Option<Self>
[src]
Convert an u16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u32(n: u32) -> Option<Self>
[src]
Convert an u32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
impl FromPrimitive for Ratio<i64>
[src]
fn from_i64(n: i64) -> Option<Self>
[src]
Convert an i64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u64(n: u64) -> Option<Self>
[src]
Convert an u64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f32(n: f32) -> Option<Self>
[src]
Convert a f32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f64(n: f64) -> Option<Self>
[src]
Convert a f64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_isize(n: isize) -> Option<Self>
[src]
Convert an isize
to return an optional value of this type. If the value cannot be represented by this value, then None
is returned. Read more
fn from_i8(n: i8) -> Option<Self>
[src]
Convert an i8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i16(n: i16) -> Option<Self>
[src]
Convert an i16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i32(n: i32) -> Option<Self>
[src]
Convert an i32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_usize(n: usize) -> Option<Self>
[src]
Convert a usize
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u8(n: u8) -> Option<Self>
[src]
Convert an u8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u16(n: u16) -> Option<Self>
[src]
Convert an u16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u32(n: u32) -> Option<Self>
[src]
Convert an u32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
impl FromPrimitive for Ratio<isize>
[src]
fn from_i64(n: i64) -> Option<Self>
[src]
Convert an i64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u64(n: u64) -> Option<Self>
[src]
Convert an u64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f32(n: f32) -> Option<Self>
[src]
Convert a f32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f64(n: f64) -> Option<Self>
[src]
Convert a f64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_isize(n: isize) -> Option<Self>
[src]
Convert an isize
to return an optional value of this type. If the value cannot be represented by this value, then None
is returned. Read more
fn from_i8(n: i8) -> Option<Self>
[src]
Convert an i8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i16(n: i16) -> Option<Self>
[src]
Convert an i16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i32(n: i32) -> Option<Self>
[src]
Convert an i32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_usize(n: usize) -> Option<Self>
[src]
Convert a usize
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u8(n: u8) -> Option<Self>
[src]
Convert an u8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u16(n: u16) -> Option<Self>
[src]
Convert an u16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u32(n: u32) -> Option<Self>
[src]
Convert an u32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
impl FromPrimitive for Ratio<u8>
[src]
fn from_i64(n: i64) -> Option<Self>
[src]
Convert an i64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u64(n: u64) -> Option<Self>
[src]
Convert an u64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f32(n: f32) -> Option<Self>
[src]
Convert a f32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f64(n: f64) -> Option<Self>
[src]
Convert a f64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_isize(n: isize) -> Option<Self>
[src]
Convert an isize
to return an optional value of this type. If the value cannot be represented by this value, then None
is returned. Read more
fn from_i8(n: i8) -> Option<Self>
[src]
Convert an i8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i16(n: i16) -> Option<Self>
[src]
Convert an i16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i32(n: i32) -> Option<Self>
[src]
Convert an i32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_usize(n: usize) -> Option<Self>
[src]
Convert a usize
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u8(n: u8) -> Option<Self>
[src]
Convert an u8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u16(n: u16) -> Option<Self>
[src]
Convert an u16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u32(n: u32) -> Option<Self>
[src]
Convert an u32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
impl FromPrimitive for Ratio<u16>
[src]
fn from_i64(n: i64) -> Option<Self>
[src]
Convert an i64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u64(n: u64) -> Option<Self>
[src]
Convert an u64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f32(n: f32) -> Option<Self>
[src]
Convert a f32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f64(n: f64) -> Option<Self>
[src]
Convert a f64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_isize(n: isize) -> Option<Self>
[src]
Convert an isize
to return an optional value of this type. If the value cannot be represented by this value, then None
is returned. Read more
fn from_i8(n: i8) -> Option<Self>
[src]
Convert an i8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i16(n: i16) -> Option<Self>
[src]
Convert an i16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i32(n: i32) -> Option<Self>
[src]
Convert an i32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_usize(n: usize) -> Option<Self>
[src]
Convert a usize
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u8(n: u8) -> Option<Self>
[src]
Convert an u8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u16(n: u16) -> Option<Self>
[src]
Convert an u16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u32(n: u32) -> Option<Self>
[src]
Convert an u32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
impl FromPrimitive for Ratio<u32>
[src]
fn from_i64(n: i64) -> Option<Self>
[src]
Convert an i64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u64(n: u64) -> Option<Self>
[src]
Convert an u64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f32(n: f32) -> Option<Self>
[src]
Convert a f32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f64(n: f64) -> Option<Self>
[src]
Convert a f64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_isize(n: isize) -> Option<Self>
[src]
Convert an isize
to return an optional value of this type. If the value cannot be represented by this value, then None
is returned. Read more
fn from_i8(n: i8) -> Option<Self>
[src]
Convert an i8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i16(n: i16) -> Option<Self>
[src]
Convert an i16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i32(n: i32) -> Option<Self>
[src]
Convert an i32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_usize(n: usize) -> Option<Self>
[src]
Convert a usize
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u8(n: u8) -> Option<Self>
[src]
Convert an u8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u16(n: u16) -> Option<Self>
[src]
Convert an u16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u32(n: u32) -> Option<Self>
[src]
Convert an u32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
impl FromPrimitive for Ratio<u64>
[src]
fn from_i64(n: i64) -> Option<Self>
[src]
Convert an i64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u64(n: u64) -> Option<Self>
[src]
Convert an u64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f32(n: f32) -> Option<Self>
[src]
Convert a f32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f64(n: f64) -> Option<Self>
[src]
Convert a f64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_isize(n: isize) -> Option<Self>
[src]
Convert an isize
to return an optional value of this type. If the value cannot be represented by this value, then None
is returned. Read more
fn from_i8(n: i8) -> Option<Self>
[src]
Convert an i8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i16(n: i16) -> Option<Self>
[src]
Convert an i16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i32(n: i32) -> Option<Self>
[src]
Convert an i32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_usize(n: usize) -> Option<Self>
[src]
Convert a usize
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u8(n: u8) -> Option<Self>
[src]
Convert an u8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u16(n: u16) -> Option<Self>
[src]
Convert an u16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u32(n: u32) -> Option<Self>
[src]
Convert an u32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
impl FromPrimitive for Ratio<usize>
[src]
fn from_i64(n: i64) -> Option<Self>
[src]
Convert an i64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u64(n: u64) -> Option<Self>
[src]
Convert an u64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f32(n: f32) -> Option<Self>
[src]
Convert a f32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_f64(n: f64) -> Option<Self>
[src]
Convert a f64
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_isize(n: isize) -> Option<Self>
[src]
Convert an isize
to return an optional value of this type. If the value cannot be represented by this value, then None
is returned. Read more
fn from_i8(n: i8) -> Option<Self>
[src]
Convert an i8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i16(n: i16) -> Option<Self>
[src]
Convert an i16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_i32(n: i32) -> Option<Self>
[src]
Convert an i32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_usize(n: usize) -> Option<Self>
[src]
Convert a usize
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u8(n: u8) -> Option<Self>
[src]
Convert an u8
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u16(n: u16) -> Option<Self>
[src]
Convert an u16
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more
fn from_u32(n: u32) -> Option<Self>
[src]
Convert an u32
to return an optional value of this type. If the type cannot be represented by this value, then None
is returned. Read more