@dfinity/candid/lib/cjs/utils/bigint-math.js

JavaScript and TypeScript library to work with candid interfaces

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ilog2 = ilog2;
exports.iexp2 = iexp2;
/**
 * Equivalent to `Math.log2(n)` with support for `BigInt` values
 * @param n bigint or integer
 * @returns integer
 */
function ilog2(n) {
    const nBig = BigInt(n);
    if (n <= 0) {
        throw new RangeError('Input must be positive');
    }
    return nBig.toString(2).length - 1;
}
/**
 * Equivalent to `2 ** n` with support for `BigInt` values
 * (necessary for browser preprocessors which replace the `**` operator with `Math.pow`)
 * @param n bigint or integer
 * @returns bigint
 */
function iexp2(n) {
    const nBig = BigInt(n);
    if (n < 0) {
        throw new RangeError('Input must be non-negative');
    }
    return BigInt(1) << nBig;
}
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