Struct ethers::core::k256::elliptic_curve::group::ff::BatchInverter [−]
pub struct BatchInverter {}
Expand description
A non-allocating batch inverter.
Implementations
impl BatchInverter
impl BatchInverter
pub fn invert_with_external_scratch<F>(
elements: &mut [F],
scratch_space: &mut [F]
) -> F where
F: Field + ConstantTimeEq,
pub fn invert_with_external_scratch<F>(
elements: &mut [F],
scratch_space: &mut [F]
) -> F where
F: Field + ConstantTimeEq,
Inverts each field element in elements
(when nonzero). Zero-valued elements are
left as zero.
scratch_space
is a slice of field elements that can be freely overwritten.
Returns the inverse of the product of all nonzero field elements.
Panics
This function will panic if elements.len() != scratch_space.len()
.
pub fn invert_with_internal_scratch<F, T, TE, TS>(
items: &mut [T],
element: TE,
scratch_space: TS
) -> F where
F: Field + ConstantTimeEq,
TE: Fn(&mut T) -> &mut F,
TS: Fn(&mut T) -> &mut F,
pub fn invert_with_internal_scratch<F, T, TE, TS>(
items: &mut [T],
element: TE,
scratch_space: TS
) -> F where
F: Field + ConstantTimeEq,
TE: Fn(&mut T) -> &mut F,
TS: Fn(&mut T) -> &mut F,
Inverts each field element in items
(when nonzero). Zero-valued elements are
left as zero.
element
is a function that extracts the element to be inverted fromitems
.scratch_space
is a function that extracts the scratch space fromitems
.
Returns the inverse of the product of all nonzero field elements.
Auto Trait Implementations
impl RefUnwindSafe for BatchInverter
impl Send for BatchInverter
impl Sync for BatchInverter
impl Unpin for BatchInverter
impl UnwindSafe for BatchInverter
Blanket Implementations
Mutably borrows from an owned value. Read more
Instruments this type with the provided Span
, returning an
Instrumented
wrapper. Read more
pub fn vzip(self) -> V
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more