4954int index = r.Next(expressions.Length + 1) - 1; 4967string Type() => types[r.Next(types.Length)]; 4970switch (r.Next(d <= 1 ? 9 : 13)) 4980return Type() + " x" + r.Next(10); 4986return r.Next(2) == 0 ? makeRecursivePattern(d) : makeListPattern(d); 4992return ".." + (r.Next(2) == 0 ? Pattern(d - 1) : null); 4999bool haveParens = r.Next(2) == 0; 5000bool haveCurlies = r.Next(2) == 0; 5003bool haveType = r.Next(2) == 0; 5004bool haveIdentifier = r.Next(2) == 0; 5005return $"{(haveType ? Type() : null)} {(haveParens ? $"({makePatternList(d - 1, false)})" : null)} {(haveCurlies ? $"{"{ "}{makePatternList(d - 1, true)}{" }"}" : null)} {(haveIdentifier ? " x" + r.Next(10) : null)}"; 5011bool haveIdentifier = r.Next(2) == 0; 5012return $"[{makePatternList(d - 1, false)}]{(haveIdentifier ? " x" + r.Next(10) : null)}"; 5017return string.Join(", ", Enumerable.Range(0, r.Next(3)).Select(i => $"{(propNames ? $"P{r.Next(10)}: " : null)}{Pattern(d)}")); 5030switch (r.Next(2)) 5040var nCases = r.Next(5); 5044if (i == nCases || r.Next(2) == 0)

Semantics\PatternMatchingTests_ListPatterns.cs (3)

7353var case1 = cases[r.Next(Count)]; 7354var case2 = cases[r.Next(Count)]; 7355var type = r.Next(2) == 0 ? "System.Span<int>" : "int[]";

SourceGeneration\GeneratorDriverFuzzTests.cs (21)

Symbols\Source\CompletionTests.cs (1)

128CompletionPart part = (CompletionPart)(1 << r.Next(8 * sizeof(CompletionPart)));

Parsing\PatternParsingTests.cs (11)

2992int k1 = random.Next(source.Length); 2993int k2 = random.Next(source.Length); 3013int nProps = random.Next(maxDepth); 3018if (needNames || random.Next(5) == 0) builder.Append("N: "); 3025if (maxDepth <= 0 || random.Next(6) == 0) 3027switch (random.Next(4)) 3044bool nameType = random.Next(2) == 0; 3045bool parensPart = random.Next(2) == 0; 3046bool propsPart = random.Next(2) == 0; 3047bool name = random.Next(2) == 0; 3053string makePattern0() => makePattern(random.Next(6));

Syntax\SyntaxAnnotationTests.cs (3)

489var item = GetAllNodesAndTokens(currentRoot)[randomGenerator.Next(count - 1)]; 515var firstItem = candidatePool[randomGenerator.Next(numberOfCandidates - 1)]; 523var secondItem = GetAllNodesAndTokens(newRoot)[randomGenerator.Next(numberOfCandidates - 1)];

CachingLookupTests.cs (1)

53bool upper = _randomCaseGenerator.Next(2) == 0;

Collections\BitArrayTests.cs (8)

47int capacity = r1.Next(maxBits); 48Assert.Equal(r2.Next(maxBits), capacity); 73CheckIntersectionCore(r.Next(maxBits), r); 114CheckUnionCore(r.Next(maxBits), r.Next(maxBits), r); 165var capacity = r1.Next(maxBits); 166Assert.Equal(capacity, r2.Next(maxBits)); 329return self.Next(2) == 0;

Collections\ImmutableSegmentedListTest.cs (12)

51switch ((Operation)random.Next((int)Operation.Last)) 60int inputLength = random.Next(100); 67int position = random.Next(expected.Count + 1); 74inputLength = random.Next(100); 76position = random.Next(expected.Count + 1); 84position = random.Next(expected.Count); 92position = random.Next(expected.Count); 93inputLength = random.Next(expected.Count - position); 198int batchSize = random.Next(32); 205int largeBatchSize = random.Next(32768) + 32768; 227int startPosition = random.Next(list.Count + 1); 228int length = random.Next(maxBatchSize + 1);

Text\SourceTextTests.cs (1)

248builder.Append((char)('a' + random.Next(26)));

Text\TextChangeTests.cs (7)

988var originalText = SourceText.From(string.Join("", Enumerable.Range(0, random.Next(10)))); 999for (int i = 0; i < originalText.Length; i += random.Next(maxSkipLength)) 1001var newText = string.Join("", Enumerable.Repeat('a', random.Next(oldMaxInsertLength))); 1002var newChange = new TextChange(new TextSpan(i, length: random.Next(originalText.Length - i)), newText); 1019for (int i = 0; i < editedLength; i += random.Next(maxSkipLength)) 1021var newText = string.Join("", Enumerable.Repeat('b', random.Next(newMaxInsertLength))); 1022var newChange = new TextChange(new TextSpan(i, length: random.Next(editedLength - i)), newText);

Diagnostics\HostDiagnosticAnalyzers.cs (1)

254var swapIndex = random.Next(i + 1);

UtilityTest\SerializableBytesTests.cs (5)

83var position = random.Next((int)expected.Length); 154var position = random.Next(10000); 169var position = random.Next(10000); 172var position1 = random.Next(10000); 269var count = random.Next(read1.Length) + 1;

WorkspaceServiceTests\TemporaryStorageServiceTests.cs (1)

248var position = random.Next(10000);

Embeddings\BinaryEmbeddingTests.cs (1)

62bools[i] = r.Next(2) != 0;

ChatCompletion\FunctionInvokingChatClientApprovalsTests.cs (1)

925var value = new Random().Next(100);

ChatCompletion\FunctionInvokingChatClientTests.cs (1)

1307var value = new Random().Next(100);

DistributedCacheBenchmarks.cs (1)

227private string RandomKey() => keys[random.Next(keys.Length)];

Logging\Internal\RandomStringGenerator.cs (1)

20.Select(s => s[_random.Next(s.Length)]).ToArray());

Internal\Randomizer.cs (1)

16public virtual int NextInt(int maxValue) => Random.Shared.Next(maxValue);

TimerTests.cs (1)

338dueTimes[i] = random.Next(MaxDueTime);

API\BinaryClassificationExperiment.cs (1)

398var res = metrics[_rnd.Next(fold)];

API\MulticlassClassificationExperiment.cs (1)

376var res = metrics[_rnd.Next(fold)];

API\RegressionExperiment.cs (1)

403var res = metrics[_rnd.Next(fold)];

Utils\RandomNumberGenerator.cs (1)

25return _random.Next(high);

Utilities\Random.cs (2)

152return ((uint)rng.Next(0x00010000) << 16) | ((uint)rng.Next(0x00010000));

Utilities\ReservoirSampler.cs (5)

94int ind = _rnd.Next(_cache.Length); 178_reservoir[i] = _rnd.Next(_cache.Length); 190int ind = _rnd.Next(_reservoir.Length); 207var next = _rnd.Next(_reservoir.Length); 235_reservoir[i] = _rnd.Next((int)_numSampled);

Utilities\Stats.cs (3)

27return rand.Next((int)rangeSize); 39result = (long)max * rand.Next(max) + rand.Next(max);

Utilities\Utils.cs (1)

550Swap(ref rgv[iv], ref rgv[iv + rand.Next(rgv.Length - iv)]);

UnitTests\TestHosts.cs (2)

46var randHostTuple = hosts.ElementAt(rand.Next(hosts.Count - 1)); 63index = rand.Next(hosts.Count);

UnitTests\TestVBuffer.cs (18)

968int count = rgen.Next(2) == 0 ? len : rgen.Next(len); 979indices = new int[count + rgen.Next(excess)]; 982indices[i] = rgen.Next(200) - 100; 983if (indices.Length == 0 && rgen.Next(2) == 0) 986float[] values = new float[count + rgen.Next(excess)]; 989if (values.Length == 0 && rgen.Next(2) == 0) 999indices[i] = rgen.Next(max); 1100subcase = (GenLogic)rgen.Next(cases); 1112GenerateVBuffer(rgen, len, rgen.Next(len), out b); 1117GenerateVBuffer(rgen, len, rgen.Next(len), out a); 1126GenerateVBuffer(rgen, len, rgen.Next(len), out a); 1127GenerateVBuffer(rgen, a.GetValues().Length, rgen.Next(a.GetValues().Length), out b); 1136GenerateVBuffer(rgen, len, rgen.Next(len), out a); 1137GenerateVBuffer(rgen, len, rgen.Next(len), out b); 1140GenerateVBuffer(rgen, len, rgen.Next(len), out a); 1141int boundary = rgen.Next(a.GetValues().Length + 1); 1155if (rgen.Next(2) == 0)

Prediction\Calibrator.cs (1)

1417index = _random.Next(_itemsSeen); // 0 to items_seen - 1.

Transforms\RowShufflingTransformer.cs (1)

659int circularSwapIndex = (_rand.Next(Math.Min(_liveCount, _poolRows)) + _circularIndex) % _pipeIndices.Length;

SumupPerformanceCommand.cs (2)

107yield return rgen.Next(_bins); 144yield return rgen.Next(_bins);

Training\Applications\ObjectiveFunction.cs (1)

58int sampleIndex = _rnd.Next(GradSamplingRate);

Training\DocumentPartitioning.cs (1)

182var randInst = _leafBegin[i] + rand.Next(_leafCount[i]);

Training\OptimizationAlgorithms\GradientDescent.cs (1)

54droppedTrees = new int[] { DropoutRng.Next(numberOfTrees) };

Utils\LinqExtensions.cs (1)

267return rand.Next(len);

MistralCausalLMAgent.cs (1)

164.Select(s => s[random.Next(s.Length)]).ToArray());

LightGbmTrainerBase.cs (2)

963step = rand.Next((int)(2 * averageStep - 1)) + 1; 1016step = rand.Next((int)(2 * averageStep - 1)) + 1;

BenchmarkBase.cs (3)

89lineSB.Append(CreateRandomColumn(random.Next(100), maxWordLength, random)); 116columnSB.Append(characters[random.Next(characters.Length)]); 124if (random.Next(2) == 0) // sometimes return the column as lowercase

CacheDataViewBench.cs (1)

62_positions[i] = rand.Next(Length);

Dynamic\Trainers\BinaryClassification\PermutationFeatureImportance.cs (2)

105Feature1 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)), 106Feature2 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)),

Dynamic\Trainers\BinaryClassification\PermutationFeatureImportanceLoadFromDisk.cs (2)

91Feature1 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)), 92Feature2 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)),

Dynamic\Trainers\MulticlassClassification\PermutationFeatureImportance.cs (2)

110Feature1 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)), 111Feature2 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)),

Dynamic\Trainers\MulticlassClassification\PermutationFeatureImportanceLoadFromDisk.cs (2)

119Feature1 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)), 120Feature2 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)),

Dynamic\Trainers\Ranking\PermutationFeatureImportance.cs (2)

121Feature1 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)), 122Feature2 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)),

Dynamic\Trainers\Ranking\PermutationFeatureImportanceLoadFromDisk.cs (2)

128Feature1 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)), 129Feature2 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)),

Dynamic\Trainers\Regression\PermutationFeatureImportance.cs (2)

115Feature1 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)), 116Feature2 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)),

Dynamic\Trainers\Regression\PermutationFeatureImportanceLoadFromDisk.cs (2)

122Feature1 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)), 123Feature2 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)),

Dynamic\Transforms\CalculateFeatureContribution.cs (2)

124Feature1 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)), 125Feature2 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)),

Dynamic\Transforms\CalculateFeatureContributionCalibrated.cs (2)

131Feature1 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)), 132Feature2 = (float)(rng.Next(10) * (rng.NextDouble() - 0.5)),

LdSvm\LdSvmTrainer.cs (5)

240int thetaIdx = Host.Rand.Next(numLeaf - 1); 537int randIdx = k + rand.Next(length - k); 552int index = rand.Next(length); 587_indices2[i] = rand.Next(length); 626int randIdx = k + rand.Next(length - k);

Optimizer\DifferentiableFunction.cs (2)

208int index = _r.Next((int)x.Length); 210index = _r.Next((int)x.Length);

Algorithms\Grid.cs (1)

184return new ParameterSet(SweepParameters.Select(sweepParameter => sweepParameter[Host.Rand.Next(sweepParameter.Count)]));

DataPipe\TestDataPipe.cs (1)

1186bizValues[i] = (rgen.Next(2) == 1);

CalibratedModelParametersTests.cs (5)

108var x1 = rand.Next(1000); 110var x2Important = rand.Next(10000); 112var x3 = rand.Next(5000); 114var x4Rand = rand.Next(1000); 117var noise = rand.Next(50);

FeatureContributionTests.cs (10)

269var x1 = rand.Next(1000); 271var x3Important = rand.Next(10000); 278vb = new VBuffer<float>(4, 3, new float[] { rand.Next(1000), rand.Next(1000), rand.Next(1000) }, new int[] { 0, 2, 3 }); 282vb = new VBuffer<float>(4, 4, new float[] { rand.Next(1000), rand.Next(1000), rand.Next(1000), rand.Next(1000) }, new int[] { 0, 1, 2, 3 }); 293var noise = rand.Next(50);

PermutationFeatureImportanceTests.cs (15)

826var x1 = rand.Next(1000); 828var x2Important = rand.Next(10000); 830var x3 = rand.Next(5000); 832var x4Rand = rand.Next(1000); 835var noise = rand.Next(50); 893var x1 = rand.Next(1000); 895var x3Important = rand.Next(10000); 902vb = new VBuffer<float>(4, 3, new float[] { rand.Next(1000), rand.Next(1000), rand.Next(1000) }, new int[] { 0, 2, 3 }); 906vb = new VBuffer<float>(4, 4, new float[] { rand.Next(1000), rand.Next(1000), rand.Next(1000), rand.Next(1000) }, new int[] { 0, 1, 2, 3 }); 917var noise = rand.Next(50);

Tasks\Kudu\KuduDeploy.cs (1)

168string zipFileFullPath = Path.Combine(Path.GetTempPath(), string.Format("Publish{0}.zip", new Random().Next(int.MaxValue)));

Microsoft\VisualBasic\ApplicationServices\SingleInstanceTests.cs (2)

196int n = r.Next(1000); 200builder.Append((char)('a' + r.Next(26)));

System\Windows\Documents\FixedPageStructure.cs (3)

549prevTextPoint.Y = flowRunBox.Bottom - random.Next(15); 562flowRunBox.Inflate(random.Next(3), random.Next(3));

Services\VisualStudioDiagnosticAnalyzerExecutorTests.cs (1)

119var next = random.Next(1000);

System\Linq\Shuffle.SpeedOpt.cs (1)

223int r = Random.Shared.Next(i + 1);

System\Net\NetworkInformation\Ping.RawSocket.cs (1)

28ushort id = (ushort)Random.Shared.Next(ushort.MaxValue + 1);

src\libraries\System.Private.CoreLib\src\System\Random.CompatImpl.cs (3)

212((ulong)(uint)_parent.Next(1 << 22)) | 213(((ulong)(uint)_parent.Next(1 << 22)) << 22) | 214(((ulong)(uint)_parent.Next(1 << 20)) << 44);

src\libraries\System.Private.CoreLib\src\System\Random.cs (4)

190/// The method uses <see cref="Next(int)" /> to select items randomly from <paramref name="choices" /> 286destination[i] = choices[Next(choices.Length)]; 304/// The method uses <see cref="Next(int)" /> to select items randomly from <paramref name="choices" /> 325/// The method uses <see cref="Next(int)" /> to select items randomly from <paramref name="choices" />

System\Text\RegularExpressions\Regex.Cache.cs (2)

236int minListIndex = useRandom ? s_random.Next(s_cacheList.Count) : 0; 242int nextIndex = useRandom ? s_random.Next(s_cacheList.Count) : i;

System\Text\RegularExpressions\Symbolic\SymbolicRegexMatcher.Sample.cs (1)

172static T Choose<T>(Random random, IList<T> elems) => elems[random.Next(elems.Count)];

System\Windows\Forms\FontCacheTests.cs (4)

27Thread.Sleep(random.Next(5)); 31fonts[random.Next(10)], 32(FONT_QUALITY)random.Next(7)); 35Thread.Sleep(random.Next(10));

System\Windows\Forms\ScreenDcCacheTests.cs (2)

18Thread.Sleep(random.Next(5)); 23Thread.Sleep(random.Next(5));