feat: implement function unequal

This commit is contained in:
Jos de Jong 2022-12-22 14:59:48 +01:00
parent fbec410c42
commit 9aec1bca17

View File

@ -1,27 +1,34 @@
import {configDependency} from '../core/Config.js'
import {Signature, ImpType} from '../core/Dispatcher.js'
import { configDependency } from '../core/Config.js'
import { Signature, ImpType, Dependency } from '../core/Dispatcher.js'
const DBL_EPSILON = Number.EPSILON || 2.2204460492503130808472633361816E-16
declare module "./type" {
interface NumbersReturn<Params> {
equal: Signature<Params, [number, number], boolean>
unequal: Signature<Params, [number, number], boolean>
}
}
export const equal =
(dep: configDependency): ImpType<'equal', [number, number]> =>
(x, y) => {
const eps = dep.config.epsilon
if (eps === null || eps === undefined) return x === y
if (x === y) return true
if (isNaN(x) || isNaN(y)) return false
(x, y) => {
const eps = dep.config.epsilon
if (eps === null || eps === undefined) return x === y
if (x === y) return true
if (isNaN(x) || isNaN(y)) return false
if (isFinite(x) && isFinite(y)) {
const diff = Math.abs(x - y)
if (diff < DBL_EPSILON) return true
return diff <= Math.max(Math.abs(x), Math.abs(y)) * eps
if (isFinite(x) && isFinite(y)) {
const diff = Math.abs(x - y)
if (diff < DBL_EPSILON) return true
return diff <= Math.max(Math.abs(x), Math.abs(y)) * eps
}
return false
}
return false
export const unequal = (dep: Dependency<'equal', [number, number]>):
ImpType<'unequal', [number, number]> =>
(x, y) => {
return !dep.equal(x, y)
}