1/* 2 * Copyright (C) 2024 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17/** 18 * BigintMath provides mathematical operations for bigints. 19 */ 20export class BigintMath { 21 /** 22 * Divides two bigints and rounds the result to the nearest integer. 23 * 24 * @param ns The dividend. 25 * @param div The divisor. 26 * @return The rounded quotient. 27 */ 28 static divideAndRound(ns: bigint, div: bigint): bigint { 29 let quot = ns / div; 30 if (ns % div >= div / 2n) { 31 quot += 1n; 32 } 33 return quot; 34 } 35} 36