@swaptoshi/dex-module/dist/stores/library/core/full_math.js

Klayr decentralized exchange (dex) on-chain module

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.mulDiv = mulDiv;
exports.mulDivRoundingUp = mulDivRoundingUp;
const int_1 = require("../int");
function mulDiv(a, b, denominator) {
    if (denominator === '0')
        throw new Error('Denominator must be greater than zero');
    if (int_1.Uint.from(a).mul(b).div(denominator).gt(int_1.Uint256.MAX))
        throw new Error('overflow');
    if (a === '0' || b === '0')
        return '0';
    return int_1.Uint.from(a).mul(b).div(denominator).toString();
}
function mulDivRoundingUp(a, b, denominator) {
    let result = int_1.Uint256.from(mulDiv(a, b, denominator));
    if (int_1.Uint.from(a).mul(b).mod(denominator).gt(0)) {
        if (result.gte(int_1.Uint256.MAX)) {
            throw new Error('Result exceeds the maximum value for uint256');
        }
        result = result.add(1);
    }
    return result.toString();
}
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