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MetricBranchDescriptor

qualia_core_db::container_10d::metric_check

Struct MetricBranchDescriptor 

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#[repr(C)]
pub struct MetricBranchDescriptor {
    pub v_class: u8,
    pub metric_kind: u8,
    pub folded_axes: u16,
    pub reserved: u32,
}
Expand description

One row of the metric-completeness table: the metric used for a single v-class and the bitmask of COORDINATE axes it folds.

folded_axes is a bitmask over super::axis_role::AXIS_ORDER indices — bit i set means axis i participates in this branch’s distance sum. Only COORDINATE-axis bits may be set; a SELECTOR-axis bit (0,1,2) is a divergence the verifier rejects.

Layout: 8 bytes, no padding (u8 + u8 + u16 + u32, all naturally aligned). POD so it embeds directly in the header.

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§v_class: u8

The v class this row describes: 0, 1, 2, or 255 for the v >= 3 catch-all.

§metric_kind: u8

The metric kind — see MetricKind.

§folded_axes: u16

Bitmask of folded COORDINATE axes (bit i = axis i in AXIS_ORDER).

§reserved: u32

Reserved, must be zero. Future use (e.g. per-branch scale weights).

Implementations§

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impl MetricBranchDescriptor

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pub const fn folds_axis(self, i: usize) -> bool

True if axis i is declared folded by this branch.

Trait Implementations§

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impl Clone for MetricBranchDescriptor

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fn clone(&self) -> MetricBranchDescriptor

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

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

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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 PartialEq for MetricBranchDescriptor

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fn eq(&self, other: &MetricBranchDescriptor) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Zeroable for MetricBranchDescriptor

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fn zeroed() -> Self

Calls zeroed. Read more
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impl Copy for MetricBranchDescriptor

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impl Eq for MetricBranchDescriptor

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impl Pod for MetricBranchDescriptor

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impl StructuralPartialEq for MetricBranchDescriptor

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