@genexus/web-standard-functions/dist/lib/bigNumber/roundToEven.js

GeneXus JavaScript standard functions library for web generators

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.roundToEvenBigNumber = void 0;
const divide_1 = require("../math/divide");
const multiply_1 = require("../math/multiply");
const subtract_1 = require("../math/subtract");
const gxbignumber_1 = require("../types/gxbignumber");
const mod_1 = require("./mod");
const round_1 = require("./round");
/**
 * Rounds to even the given number to the specified number of decimal digits
 * @param {GxBigNumber} value
 * @param {GxBigNumber} digits
 * @returns GxBigNumber
 */
const roundToEvenBigNumber = (value, digits) => {
    let digitsAux = Number(digits.toString());
    const multiplier = Math.pow(10, digitsAux || 0);
    const valToRound = (0, multiply_1.multiply)(value, new gxbignumber_1.GxBigNumber(multiplier));
    let int = new gxbignumber_1.GxBigNumber(valToRound.toString().split(".")[0]);
    const decimalPart = (0, subtract_1.subtract)(valToRound, int);
    let rounded = (0, round_1.roundBigNumber)(valToRound, new gxbignumber_1.GxBigNumber(0));
    if (gxbignumber_1.GxBigNumber.compare(decimalPart, new gxbignumber_1.GxBigNumber(0.5)) === 0 &&
        gxbignumber_1.GxBigNumber.compare((0, mod_1.modBigNumber)(rounded, new gxbignumber_1.GxBigNumber(2)), new gxbignumber_1.GxBigNumber(0)) !== 0) {
        rounded = (0, subtract_1.subtract)(rounded, 1);
    }
    return (0, divide_1.divide)(rounded, multiplier);
};
exports.roundToEvenBigNumber = roundToEvenBigNumber;
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