ReductionOverhead

problemreductions::rules::registry

Struct ReductionOverhead 

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pub struct ReductionOverhead {
    pub output_size: Vec<(&'static str, Polynomial)>,
}
Expand description

Overhead specification for a reduction.

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§output_size: Vec<(&'static str, Polynomial)>

Output size as polynomials of input size variables. Each entry is (output_field_name, polynomial).

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impl ReductionOverhead

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pub fn new(output_size: Vec<(&'static str, Polynomial)>) -> Self

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pub fn evaluate_output_size(&self, input: &ProblemSize) -> ProblemSize

Evaluate output size given input size.

Uses round() for the f64 to usize conversion because polynomial coefficients are typically integers (1, 2, 3, 7, 21, etc.) and any fractional results come from floating-point arithmetic imprecision, not intentional fractions. For problem sizes, rounding to nearest integer is the most intuitive behavior.

Trait Implementations§

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impl Clone for ReductionOverhead

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fn clone(&self) -> ReductionOverhead

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ReductionOverhead

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for ReductionOverhead

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fn default() -> ReductionOverhead

Returns the “default value” for a type. Read more

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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