Struct BuildAccumulator

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pub struct BuildAccumulator<const W: usize> { /* private fields */ }

Expand description

Incremental builder for a crate::PauliSum from unsorted terms; repeated keys sum.

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impl<const W: usize> BuildAccumulator<W>

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pub fn new(num_qubits: usize) -> Self

New empty accumulator targeting num_qubits qubits.

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pub fn with_capacity(num_qubits: usize, capacity: usize) -> Self

Allocate up-front for at least capacity distinct Pauli keys.

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pub fn add_term(&mut self, p: PauliString<W>, c: Complex64)

Add c · p.

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pub fn finalize(self) -> PauliSum<W>

Emit the crate::PauliSum, dropping keys whose coefficients summed to exactly zero.

Auto Trait Implementations§

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impl<const W: usize> UnwindSafe for BuildAccumulator<W>

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

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impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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