Trait Term 

pub trait Term: Copy {
    // Required method
    fn term<C>(self) -> C
       where C: Tally;

    // Provided method
    fn terms<C>(items: &[Self]) -> C
       where C: Tally { ... }
}

An item that sums into any Tally: a Boolean, as 0 or 1, or an integer.

Required Methods

fn term<C>(self) -> C

where C: Tally,

self as a term of a sum in C. An integer wider than C keeps its low bits, which leaves exact every sum that fits C.

Provided Methods

fn terms<C>(items: &[Self]) -> C

where C: Tally,

The sum of items in C.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl Term for bool

fn terms<C>(items: &[bool]) -> C

where C: Tally,

Each chunk of 192 items counts into byte totals, 16 to a vector. In wasm, a running 64-bit total doesn’t vectorise, and 16-bit totals cost about 4 times as much as bytes.

fn term<C>(self) -> C

where C: Tally,

impl Term for i16

fn term<C>(self) -> C

where C: Tally,

impl Term for i32

fn term<C>(self) -> C

where C: Tally,

impl Term for i64

fn term<C>(self) -> C

where C: Tally,

impl Term for u8

fn term<C>(self) -> C

where C: Tally,

Implementors