How to use indexInFloatFromDecomp method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

math.ts

Source:math.ts

...48  if (Number.isNaN(exponent) || Number.isNaN(significand) || !Number.isInteger(significand * 0x800000)) {49    return Number.NaN50  }51  if (f > 0 || (f === 0 && 1 / f === Number.POSITIVE_INFINITY)) {52    return indexInFloatFromDecomp(exponent, significand)53  } else {54    return -indexInFloatFromDecomp(exponent, -significand) - 155  }56}57/** @internal */58export function indexInFloatFromDecomp(exponent: number, significand: number) {59  // WARNING: significand >= 060  // By construct of significand in decomposeFloat,61  // significand is always max-ed.62  // The float close to zero are the only one having a significand <1, they also have an exponent of -126.63  // They are in range: [2**(-126) * 2**(-23), 2**(-126) * (2 - 2 ** 23)]64  // In other words there are 2**24 elements in that range if we include zero.65  // All other ranges (other exponents) have a length of 2**23 elements.66  if (exponent === -126) {67    return significand * 0x800000 // significand * 2**2368  }69  // Offset due to exp = -126 + Offset of previous exp (excl. -126) + Offset in current exp70  // 2**24 + (exponent - (-126) -1) * 2**23 + (significand - 1) * 2**2371  return (exponent + 127) * 0x800000 + (significand - 1) * 0x80000072}...

FloatHelpers.ts

Source:FloatHelpers.ts

...44  }45  return { exponent: safeNaN, significand: safeNaN };46}47/** @internal */48function indexInFloatFromDecomp(exponent: number, significand: number) {49  // WARNING: significand >= 050  // By construct of significand in decomposeFloat,51  // significand is always max-ed.52  // The float close to zero are the only one having a significand <1, they also have an exponent of -126.53  // They are in range: [2**(-126) * 2**(-23), 2**(-126) * (2 - 2 ** 23)]54  // In other words there are 2**24 elements in that range if we include zero.55  // All other ranges (other exponents) have a length of 2**23 elements.56  if (exponent === -126) {57    return significand * 0x800000; // significand * 2**2358  }59  // Offset due to exp = -126 + Offset of previous exp (excl. -126) + Offset in current exp60  // 2**24 + (exponent - (-126) -1) * 2**23 + (significand - 1) * 2**2361  return (exponent + 127) * 0x800000 + (significand - 1) * 0x800000;62}63/**64 * Compute the index of f relative to other available 32-bit floating point numbers65 * Rq: Produces negative indexes for negative floats66 *67 * @param f - 32-bit floating point number68 *69 * @internal70 */71export function floatToIndex(f: number): number {72  if (f === safePositiveInfinity) {73    return INDEX_POSITIVE_INFINITY;74  }75  if (f === safeNegativeInfinity) {76    return INDEX_NEGATIVE_INFINITY;77  }78  const decomp = decomposeFloat(f);79  const exponent = decomp.exponent;80  const significand = decomp.significand;81  if (safeNumberIsNaN(exponent) || safeNumberIsNaN(significand) || !safeNumberIsInteger(significand * 0x800000)) {82    return safeNaN;83  }84  if (f > 0 || (f === 0 && 1 / f === safePositiveInfinity)) {85    return indexInFloatFromDecomp(exponent, significand);86  } else {87    return -indexInFloatFromDecomp(exponent, -significand) - 1;88  }89}90/**91 * Compute the 32-bit floating point number corresponding to the provided indexes92 *93 * @param n - index of the float94 *95 * @internal96 */97export function indexToFloat(index: number): number {98  if (index < 0) {99    return -indexToFloat(-index - 1);100  }101  if (index === INDEX_POSITIVE_INFINITY) {...

Using AI Code Generation

1const { FloatArbitrary } = require('@dubzzz/fast-check');2const floatArbitrary = new FloatArbitrary();3const index = floatArbitrary.indexInFloatFromDecomp(0.0000001, 0.0000002, 0.0000003, 0.0000004, 0.0000005, 0.0000006, 0.0000007, 0.0000008, 0.0000009, 0.0000010);4console.log(index);5You can also use the following import:6I am using the following code to import the FloatArbitrary:7const { FloatArbitrary } = require('@dubzzz/fast-check/lib/check/arbitrary/definition/FloatArbitrary');8const floatArbitrary = new FloatArbitrary();9const index = floatArbitrary.indexInFloatFromDecomp(0.0000001, 0.0000002, 0.0000003,

Using AI Code Generation

1const { check, property } = require('fast-check')2const { indexInFloatFromDecomp } = require('fast-check-monorepo')3const isInteger = (x) => Number.isInteger(x) && x >= 0 && x < 14const isFloat = (x) => Number.isFinite(x) && x >= 0 && x < 15const isIndex = (x) => Number.isInteger(x) && x >= 06const isFloatIndex = (x) => Number.isFinite(x) && x >= 07const isIndexInFloat = (x) => Number.isInteger(x) && x >= 0 && x < 538const isIndexInFloatFromDecomp = (x) => Number.isInteger(x) && x >= 0 && x < 549check(10  property(11    [check.arrayOf(check.float, { maxLength: 54 }), check.nat],12    (decomp, index) => {13      const result = indexInFloatFromDecomp(decomp, index)14      return (15        isIndexInFloatFromDecomp(result) &&16        (index === 017          ? isInteger(decomp[0])18          : isFloat(decomp[index - 1]) || isInteger(decomp[index]))19    }20  { seed: 1, path: 'test3.js', endOnFailure: true }

Using AI Code Generation

1const { check, gen } = require('fast-check');2const { indexInFloatFromDecomp } = require('fast-check-monorepo');3check(4  gen.array(gen.float(), 3, 3),5  (decomp) => {6    const index = indexInFloatFromDecomp(decomp);7    return decomp[0] <= index && index < decomp[1];8  }9);

Using AI Code Generation

1const { check, property } = require('fast-check');2const { indexInFloatFromDecomp } = require('fast-check');3const checkIndexInFloatFromDecomp = property(4  (m, e) => {5    const res = indexInFloatFromDecomp(m, e);6    return res >= 0 && res < 2 ** 23;7  }8);9check(checkIndexInFloatFromDecomp, { verbose: true });

Using AI Code Generation

1const { IntegerArbitrary } = require('fast-check');2const { indexInFloatFromDecomp } = IntegerArbitrary;3const { toFloat32 } = require('ieee754');4const { decomp } = require('ieee754');5const decomp1 = decomp(1);6const decomp2 = decomp(2);7const decomp3 = decomp(3);8const decomp4 = decomp(4);9const decomp5 = decomp(5);10const decomp6 = decomp(6);11const decomp7 = decomp(7);12const decomp8 = decomp(8);13const decomp9 = decomp(9);14const decomp10 = decomp(10);15const decomp11 = decomp(11);16const decomp12 = decomp(12);17const decomp13 = decomp(13);18const decomp14 = decomp(14);19const decomp15 = decomp(15);20const decomp16 = decomp(16);21const decomp17 = decomp(17);22const decomp18 = decomp(18);23const decomp19 = decomp(19);24const decomp20 = decomp(20);25const decomp21 = decomp(21);26const decomp22 = decomp(22);27const decomp23 = decomp(23);28const decomp24 = decomp(24);29const decomp25 = decomp(25);30const decomp26 = decomp(26);31const decomp27 = decomp(27);32const decomp28 = decomp(28);33const decomp29 = decomp(29);34const decomp30 = decomp(30);35const decomp31 = decomp(31);36const decomp32 = decomp(32);37const decomp33 = decomp(33);38const decomp34 = decomp(34);39const decomp35 = decomp(35);40const decomp36 = decomp(36);41const decomp37 = decomp(37);42const decomp38 = decomp(38);43const decomp39 = decomp(39);44const decomp40 = decomp(40);45const decomp41 = decomp(41);46const decomp42 = decomp(42);47const decomp43 = decomp(43);48const decomp44 = decomp(

Using AI Code Generation

1const {Float} = require('fast-check-monorepo');2const decomp = [1.1, 2.2, 3.3, 4.4, 5.5, 6.6, 7.7, 8.8, 9.9, 10.1];3const float = 6.6;4const index = Float.indexInFloatFromDecomp(float, decomp);5console.log(index);6const floatAtIndex = decomp[index];7console.log(floatAtIndex);8const {Float} = require('fast-check-monorepo');9const decomp = [1.1, 2.2, 3.3, 4.4, 5.5, 6.6, 7.7, 8.8, 9.9, 10.1];10const float = 6.6;11const index = Float.indexInFloatFromDecomp(float, decomp);12console.log(index);13const floatAtIndex = decomp[index];14console.log(floatAtIndex);15console.log(floatAtIndex === decomp[index]);

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.