Struct Decimal
pub struct Decimal { pub exponent: i64, pub mantissa: u64, pub negative: bool, pub many_digits: bool }A floating point number with up to 64 bits of mantissa and an i64 exponent.
Fields
exponent: i64mantissa: u64negative: boolmany_digits: bool
Implementations
impl Decimal
fn can_use_fast_path<F: Lemire>(&self) -> boolDetect if the float can be accurately reconstructed from native floats.
fn try_fast_path<F: Lemire>(&self) -> Option<F>Try turning the decimal into an exact float representation, using machine-sized integers and floats.
This is extracted into a separate function so that it can be attempted before constructing a Decimal. This only works if both the mantissa and the exponent can be exactly represented as a machine float, since IEE-754 guarantees no rounding will occur.
There is an exception: disguised fast-path cases, where we can shift powers-of-10 from the exponent to the significant digits.
Trait Implementations
impl Clone for Decimal
fn clone(&self) -> Decimal
impl Copy for Decimal
impl Debug for Decimal
fn fmt(&self, f: &mut Formatter<'_>) -> Result
impl Default for Decimal
fn default() -> Decimal
impl Eq for Decimal
fn assert_fields_are_eq(&self)
impl PartialEq for Decimal
fn eq(&self, other: &Decimal) -> bool
impl StructuralPartialEq for Decimal
impl TrivialClone for Decimal
Auto Trait Implementations
impl Freeze for Decimal
impl RefUnwindSafe for Decimal
impl Send for Decimal
impl Sync for Decimal
impl Unpin for Decimal
impl UnsafeUnpin for Decimal
impl UnwindSafe for Decimal
Blanket Implementations
impl<T> Any for Decimal
where
T: 'static + ?Sized,
fn type_id(&self) -> TypeId
impl<T> Borrow<T> for Decimal
where
T: ?Sized,
fn borrow(&self) -> &T
impl<T> BorrowMut<T> for Decimal
where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
impl<T> CloneToUninit for Decimal
where
T: Clone,
unsafe fn clone_to_uninit(&self, dest: *mut u8)
impl<T> From<T> for Decimal
fn from(t: T) -> TReturns the argument unchanged.
impl<T> Printable for Decimal
where
T: Copy + Debug,
impl<T> SizeHint for Decimal
where
T: ?Sized,
fn lower_bound(&self) -> usizefn upper_bound(&self) -> Option<usize>
impl<T> SizedTypeProperties for Decimal
impl<T, U> Into<U> for Decimal
where
U: From<T>,
fn into(self) -> UCalls
U::from(self).That is, this conversion is whatever the implementation of
[From]<T> for Uchooses to do.
impl<T, U> TryFrom<U> for Decimal
where
U: Into<T>,
type Error = Infallible;fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
impl<T, U> TryInto<U> for Decimal
where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error;fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>