@drift-labs/sdk/lib/browser/math/utils.d.ts

SDK for Drift Protocol

/// <reference types="bn.js" />
import { BN } from '@coral-xyz/anchor';
export declare function clampBN(x: BN, min: BN, max: BN): BN;
export declare const squareRootBN: (n: BN) => BN;
export declare const divCeil: (a: BN, b: BN) => BN;
export declare const sigNum: (x: BN) => BN;
/**
 * calculates the time remaining until the next update based on a rounded, "on-the-hour" update schedule
 * this schedule is used for Perpetual Funding Rate and Revenue -> Insurance Updates
 * @param now: current blockchain unix timestamp
 * @param lastUpdateTs: the unix timestamp of the last update
 * @param updatePeriod: desired interval between updates (in seconds)
 * @returns: timeRemainingUntilUpdate (in seconds)
 */
export declare function timeRemainingUntilUpdate(now: BN, lastUpdateTs: BN, updatePeriod: BN): BN;
export declare const checkSameDate: (dateString1: string, dateString2: string) => boolean;
export declare function isBNSafe(number: number): boolean;
/**
 * Converts a number to BN makes sure the number is safe to convert to BN (that it does not overflow number after multiplying by precision)
 * @param number the number to convert to BN
 * @param precision the BN precision to use (i.e. QUOTE_PRECISION and BASE_PRECISION from drift sdk)
 */
export declare function numberToSafeBN(number: number, precision: BN): BN;