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How to use indexInDoubleFromDecomp method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

math.ts

Source:math.ts

...261function positiveNumberToInt64(n: number): ArrayInt64['data'] {262  return [~~(n / 0x100000000), n >>> 0]263}264/** @internal */265function indexInDoubleFromDecomp(exponent: number, significand: number): ArrayInt64['data'] {266  // WARNING: significand >= 0267  // By construct of significand in decomposeDouble,268  // significand is always max-ed.269  // The double close to zero are the only one having a significand <1, they also have an exponent of -1022.270  // They are in range: [2**(-1022) * 2**(-52), 2**(-1022) * (2 - 2 ** 52)]271  // In other words there are 2**53 elements in that range if we include zero.272  // All other ranges (other exponents) have a length of 2**52 elements.273  if (exponent === -1022) {274    // We want the significand to be an integer value (like an index)275    const rescaledSignificand = significand * 2 ** 52 // significand * 2**52276    return positiveNumberToInt64(rescaledSignificand)277  }278  // Offset due to exp = -1022 + Offset of previous exp (excl. -1022) + Offset in current exp279  // 2**53 + (exponent - (-1022) -1) * 2**52 + (significand - 1) * 2**52280  // (exponent + 1023) * 2**52 + (significand - 1) * 2**52281  const rescaledSignificand = (significand - 1) * 2 ** 52 // (significand-1) * 2**52282  const exponentOnlyHigh    = (exponent + 1023) * 2 ** 20 // (exponent + 1023) * 2**52 => [high: (exponent + 1023) * 2**20, low: 0]283  const index               = positiveNumberToInt64(rescaledSignificand)284  index[0]                 += exponentOnlyHigh285  return index286}287/**288 * Compute the index of d relative to other available 64-bit floating point numbers289 * Rq: Produces negative indexes for negative doubles290 *291 * @param d - 64-bit floating point number, anything except NaN292 *293 * @internal294 */295export function doubleToIndex(d: number): ArrayInt64 {296  if (d === Number.POSITIVE_INFINITY) {297    return clone64(INDEX_POSITIVE_INFINITY)298  }299  if (d === Number.NEGATIVE_INFINITY) {300    return clone64(INDEX_NEGATIVE_INFINITY)301  }302  const decomp      = decomposeDouble(d)303  const exponent    = decomp.exponent304  const significand = decomp.significand305  if (d > 0 || (d === 0 && 1 / d === Number.POSITIVE_INFINITY)) {306    return { sign: 1, data: indexInDoubleFromDecomp(exponent, significand) }307  } else {308    const indexOpposite = indexInDoubleFromDecomp(exponent, -significand)309    if (indexOpposite[1] === 0xffffffff) {310      indexOpposite[0] += 1311      indexOpposite[1]  = 0312    } else {313      indexOpposite[1] += 1314    }315    return { sign: -1, data: indexOpposite } // -indexInDoubleFromDecomp(exponent, -significand) - 1316  }317}318/**319 * Compute the 64-bit floating point number corresponding to the provided indexes320 *321 * @param n - index of the double322 *323 * @internal324 */325export function indexToDouble(index: ArrayInt64): number {326  if (index.sign === -1) {327    const indexOpposite: ArrayInt64 = { sign: 1, data: [index.data[0], index.data[1]] }328    if (indexOpposite.data[1] === 0) {329      indexOpposite.data[0] -= 1...

DoubleHelpers.ts

Source:DoubleHelpers.ts

...39function positiveNumberToInt64(n: number): ArrayInt64['data'] {40  return [~~(n / 0x100000000), n >>> 0];41}42/** @internal */43function indexInDoubleFromDecomp(exponent: number, significand: number): ArrayInt64['data'] {44  // WARNING: significand >= 045  // By construct of significand in decomposeDouble,46  // significand is always max-ed.47  // The double close to zero are the only one having a significand <1, they also have an exponent of -1022.48  // They are in range: [2**(-1022) * 2**(-52), 2**(-1022) * (2 - 2 ** 52)]49  // In other words there are 2**53 elements in that range if we include zero.50  // All other ranges (other exponents) have a length of 2**52 elements.51  if (exponent === -1022) {52    // We want the significand to be an integer value (like an index)53    const rescaledSignificand = significand * 2 ** 52; // significand * 2**5254    return positiveNumberToInt64(rescaledSignificand);55  }56  // Offset due to exp = -1022 + Offset of previous exp (excl. -1022) + Offset in current exp57  // 2**53 + (exponent - (-1022) -1) * 2**52 + (significand - 1) * 2**5258  // (exponent + 1023) * 2**52 + (significand - 1) * 2**5259  const rescaledSignificand = (significand - 1) * 2 ** 52; // (significand-1) * 2**5260  const exponentOnlyHigh = (exponent + 1023) * 2 ** 20; // (exponent + 1023) * 2**52 => [high: (exponent + 1023) * 2**20, low: 0]61  const index = positiveNumberToInt64(rescaledSignificand);62  index[0] += exponentOnlyHigh;63  return index;64}65/**66 * Compute the index of d relative to other available 64-bit floating point numbers67 * Rq: Produces negative indexes for negative doubles68 *69 * @param d - 64-bit floating point number, anything except NaN70 *71 * @internal72 */73export function doubleToIndex(d: number): ArrayInt64 {74  if (d === safePositiveInfinity) {75    return clone64(INDEX_POSITIVE_INFINITY);76  }77  if (d === safeNegativeInfinity) {78    return clone64(INDEX_NEGATIVE_INFINITY);79  }80  const decomp = decomposeDouble(d);81  const exponent = decomp.exponent;82  const significand = decomp.significand;83  if (d > 0 || (d === 0 && 1 / d === safePositiveInfinity)) {84    return { sign: 1, data: indexInDoubleFromDecomp(exponent, significand) };85  } else {86    const indexOpposite = indexInDoubleFromDecomp(exponent, -significand);87    if (indexOpposite[1] === 0xffffffff) {88      indexOpposite[0] += 1;89      indexOpposite[1] = 0;90    } else {91      indexOpposite[1] += 1;92    }93    return { sign: -1, data: indexOpposite }; // -indexInDoubleFromDecomp(exponent, -significand) - 194  }95}96/**97 * Compute the 64-bit floating point number corresponding to the provided indexes98 *99 * @param n - index of the double100 *101 * @internal102 */103export function indexToDouble(index: ArrayInt64): number {104  if (index.sign === -1) {105    const indexOpposite: ArrayInt64 = { sign: 1, data: [index.data[0], index.data[1]] };106    if (indexOpposite.data[1] === 0) {107      indexOpposite.data[0] -= 1;...

Using AI Code Generation

1const { indexInDoubleFromDecomp } = require('fast-check-monorepo');2const { indexInDoubleFromDecomp } = require('fast-check-monorepo');3const { indexInDoubleFromDecomp } = require('fast-check-monorepo');4const { indexInDoubleFromDecomp } = require('fast-check-monorepo');5const { indexInDoubleFromDecomp } = require('fast-check-monorepo');6const { indexInDoubleFromDecomp } = require('fast-check-monorepo');

Using AI Code Generation

1const { indexInDoubleFromDecomp } = require('fast-check-monorepo');2const { indexIn } = require('fast-check');3const { double } = require('fast-check');4const { decomp } = require('fast-check');5const test = () => {6  const d = double();7  const dDecomp = decomp(d);8  const i = indexInDoubleFromDecomp(dDecomp);9  return i === indexIn(d);10}11console.log(test());12const { indexInDoubleFromDecomp } = require('fast-check-monorepo');13const { indexIn } = require('fast-check');14const { double } = require('fast-check');15const { decomp } = require('fast-check');16const test = () => {17  const d = double();18  const dDecomp = decomp(d);19  const i = indexInDoubleFromDecomp(dDecomp);20  return i === indexIn(d);21}22console.log(test());23const { indexInDoubleFromDecomp } = require('fast-check-monorepo');24const { indexIn } = require('fast-check');25const { double } = require('fast-check');26const { decomp } = require('fast-check');27const test = () => {28  const d = double();29  const dDecomp = decomp(d);30  const i = indexInDoubleFromDecomp(dDecomp);31  return i === indexIn(d);32}33console.log(test());34const { indexInDoubleFromDecomp } = require('fast-check-monorepo');35const { indexIn } = require('fast-check');36const { double } = require('fast-check');37const { decomp } = require('fast-check');38const test = () => {39  const d = double();40  const dDecomp = decomp(d);41  const i = indexInDoubleFromDecomp(dDecomp);42  return i === indexIn(d);43}44console.log(test());45const {

Using AI Code Generation

1const fc = require("fast-check");2const { indexInDoubleFromDecomp } = require("fast-check-monorepo");3const { double } = fc;4const indexInDouble = indexInDoubleFromDecomp(double);5fc.assert(6  fc.property(double(), (d) => {7    const [n, p] = indexInDouble(d);8    return d === n * Math.pow(2, p);9  })10);

Using AI Code Generation

1const { indexInDoubleFromDecomp } = require('fast-check-monorepo');2const { property } = require('fast-check');3property().forall('array number', 'array number', (a, b) => {4  const index = indexInDoubleFromDecomp(a, b);5  return a[index] === b[index];6}).check();7const { indexInDoubleFromDecomp } = require('fast-check-monorepo');8const { property } = require('fast-check');9property().forall('array number', 'array number', (a, b) => {10  const index = indexInDoubleFromDecomp(a, b);11  return a[index] === b[index];12}).check();13const { indexInDoubleFromDecomp } = require('fast-check-monorepo');14const { property } = require('fast-check');15property().forall('array number', 'array number', (a, b) => {16  const index = indexInDoubleFromDecomp(a, b);17  return a[index] === b[index];18}).check();19const { indexInDoubleFromDecomp } = require('fast-check-monorepo');20const { property } = require('fast-check');21property().forall('array number', 'array number', (a, b) => {22  const index = indexInDoubleFromDecomp(a, b);23  return a[index] === b[index];24}).check();25const { indexInDoubleFromDecomp } = require('fast-check-monorepo');26const { property } = require('fast-check');27property().forall('array number', 'array number', (a, b) => {28  const index = indexInDoubleFromDecomp(a, b);29  return a[index] === b[index];30}).check();31const { indexInDoubleFromDecomp } = require('fast

Using AI Code Generation

1const {indexInDoubleFromDecomp} = require('fast-check-monorepo');2const [index, result] = indexInDoubleFromDecomp([1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 5, 6]);3console.log(index, result);4const {indexInDoubleFromDecomp} = require('fast-check-monorepo');5const [index, result] = indexInDoubleFromDecomp([1, 2, 3, 4, 5, 6], [6, 5, 4, 3, 2, 1]);6console.log(index, result);7const {indexInDoubleFromDecomp} = require('fast-check-monorepo');8const [index, result] = indexInDoubleFromDecomp([1, 2, 3, 4, 5, 6], [2, 3, 4, 5, 6, 1]);9console.log(index, result);10const {indexInDoubleFromDecomp} = require('fast-check-monorepo');11const [index, result] = indexInDoubleFromDecomp([1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 5]);12console.log(index, result);13const {indexInDoubleFrom

Using AI Code Generation

1const { indexInDoubleFromDecomp } = require('fast-check-monorepo');2const { sample } = require('fast-check');3const decomp = (n) => {4    const res = [];5    for (let i = 1; i <= n; i++) {6        res.push(i);7    }8    return res;9};10const test = () => {11    const index = sample(indexInDoubleFromDecomp(decomp));12    console.log(index);13};14test();15const { indexInDoubleFromDecomp } = require('fast-check-monorepo');16const { sample } = require('fast-check');17const decomp = (n) => {18    const res = [];19    for (let i = 1; i <= n; i++) {20        res.push(i);21    }22    return res;23};24const test = () => {25    const index = sample(indexInDoubleFromDecomp(decomp));26    console.log(index);27};28test();29const { indexInDoubleFromDecomp } = require('fast-check-monorepo');30const { sample } = require('fast-check');31const decomp = (n) => {32    const res = [];33    for (let i = 1; i <= n; i++) {34        res.push(i);35    }36    return res;37};38const test = () => {39    const index = sample(indexInDoubleFromDecomp(decomp));40    console.log(index);41};42test();43const { indexInDoubleFromDecomp } = require('fast-check-monorepo');44const { sample } = require('fast-check');45const decomp = (n) => {46    const res = [];47    for (let i = 1; i <= n; i++) {48        res.push(i);49    }50    return res;51};52const test = () => {53    const index = sample(indexInDoubleFromDecomp(decomp));

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