Struct ZipSum 

pub struct ZipSum {
    pub n: usize,
    pub operands: Vec<Symbol>,
    pub term: ZipTerm,
    pub acc: Symbol,
}

A recognized zip sum acc = Σ_{t<n} f(A₀[t], A₁[t], …): one counted loop accumulating an integer term of several Seq of Int arrays, every one read at the same unit-stride index — a dot product, TPC-H Q6’s filtered revenue, any map-reduce over aligned streams.

Fields

n: usize

operands: Vec<Symbol>

The arrays read, in reading order; ZipTerm::Read(k) is the element of operands[k].

term: ZipTerm

acc: Symbol

Trait Implementations

impl Clone for ZipSum

fn clone(&self) -> ZipSum

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ZipSum

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

Formats the value using the given formatter.

impl PartialEq for ZipSum

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Eq for ZipSum

impl StructuralPartialEq for ZipSum