import { TwoF64, f64 } from "../base/common.js";
import { twoDiff } from "../base/eft.js";
import { AccurateDWMinusDW, DWMinusFP } from "../base/algorithms.js";
//#region src/arithmetic/sub.d.ts
export declare const sub11: typeof twoDiff;
export declare const sub21: typeof DWMinusFP;
export declare const sub22: typeof AccurateDWMinusDW;
/**
 * Extended-precision subtraction `x - y`.
 *
 * Relative error bound: `2u²` with `u = 2^-53`
 *
 * FP ops: 10
 *
 * @param x A `f64` number
 * @param y A `TwoF64` number
 * @returns The {@link TwoF64|`TwoF64`} representation of `x - y`
 */
export declare function sub12(x: f64, y: TwoF64): TwoF64;
/**
 * Extended-precision subtraction `x - y`.
 *
 * @param x A `f64` or `TwoF64` number
 * @param y A `f64` or `TwoF64` number
 * @returns The {@link TwoF64|`TwoF64`} representation of `x - y`
 */
export declare function sub(x: f64 | TwoF64, y: f64 | TwoF64): TwoF64;
//#endregion