mathjs/src/function/bitwise/bitNot.js

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with dif

'use strict'

const deepMap = require('../../utils/collection/deepMap')
const bigBitNot = require('../../utils/bignumber/bitNot')
const isInteger = require('../../utils/number').isInteger

function factory (type, config, load, typed) {
  const latex = require('../../utils/latex')

  /**
   * Bitwise NOT value, `~x`.
   * For matrices, the function is evaluated element wise.
   * For units, the function is evaluated on the best prefix base.
   *
   * Syntax:
   *
   *    math.bitNot(x)
   *
   * Examples:
   *
   *    math.bitNot(1)               // returns number -2
   *
   *    math.bitNot([2, -3, 4])      // returns Array [-3, 2, 5]
   *
   * See also:
   *
   *    bitAnd, bitOr, bitXor, leftShift, rightArithShift, rightLogShift
   *
   * @param  {number | BigNumber | Array | Matrix} x Value to not
   * @return {number | BigNumber | Array | Matrix} NOT of `x`
   */
  const bitNot = typed('bitNot', {
    'number': function (x) {
      if (!isInteger(x)) {
        throw new Error('Integer expected in function bitNot')
      }

      return ~x
    },

    'BigNumber': bigBitNot,

    'Array | Matrix': function (x) {
      return deepMap(x, bitNot)
    }
  })

  bitNot.toTex = {
    1: latex.operators['bitNot'] + `\\left(\${args[0]}\\right)`
  }

  return bitNot
}

exports.name = 'bitNot'
exports.factory = factory