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@mjs3339
mjs3339 / GetBytesEx.cs
Last active April 28, 2018 21:08
C# GetBytes from Primitive Data Types and Arrays
public static class GetBytesEx
{
/// <summary>
/// Get Bytes from a single boolean object
/// </summary>
public static byte[] GetBytes(this bool obj)
{
return new[] {obj ? (byte) 1 : (byte) 0};
}
/// <summary>
@mjs3339
mjs3339 / TinyArray.cs
Last active December 24, 2017 18:29
C# Tiny Generic Array Class
[Serializable]
public class TinyArray<T>
{
public int Count;
public T[] Thing;
public TinyArray() : this(4096)
{
}
@mjs3339
mjs3339 / lzw.cs
Last active April 13, 2023 19:40
C# Implementation of LZW Compression/Decompression Algorithm
using System;
using System.Collections.Generic;
using System.Security;
public static class lzw
{
public static int CompressedSize
{
get;
set;
}
@mjs3339
mjs3339 / lz77.cs
Last active August 24, 2024 14:11
C# Implementation LZ77 Compression Algorithm
public static class Lz77
{
private const int RingBufferSize = 4096;
private const int UpperMatchLength = 18;
private const int LowerMatchLength = 2;
private const int None = RingBufferSize;
private static readonly int[] Parent = new int[RingBufferSize + 1];
private static readonly int[] LeftChild = new int[RingBufferSize + 1];
private static readonly int[] RightChild = new int[RingBufferSize + 257];
private static readonly ushort[] Buffer = new ushort[RingBufferSize + UpperMatchLength - 1];
@mjs3339
mjs3339 / BoyerMoore.cs
Last active August 5, 2024 02:57
C# High Performance Boyer Moore Byte Array Search Algorithm
public class BoyerMoore
{
private int[] _jumpTable;
private byte[] _pattern;
private int _patternLength;
public BoyerMoore()
{
}
public BoyerMoore(byte[] pattern)
{
@mjs3339
mjs3339 / BigPrimality.cs
Last active June 5, 2018 21:49
C# BigInteger Primality Class Sieve, isCarmichael, Deterministic, MillerRabin, SolovayStrassen, Fermat
public class BigPrimality
{
private const int PrimesTableLimit = 4096;
private static readonly string CommonDir =
Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + "\\PrimesCache\\Primes\\";
private readonly string PersistentPrimesListBigInt_FilePath = $"{CommonDir}PrimesList.bin";
private readonly BigInteger Three = new BigInteger(3);
private readonly BigInteger Two = new BigInteger(2);
public int BitLength;
public int Candidates;
@mjs3339
mjs3339 / MMTimer.cs
Last active September 1, 2022 07:14
C# Multimedia Timer TimeSetEvent TimeKillEvent
public class MMTimer : IDisposable
{
private const int EventTypePeriodic = 1;
private const uint STATUS_SUCCESS = 0;
private const uint STATUS_TIMER_RESOLUTION_NOT_SET = 0xC0000245;
private readonly MultimediaTimerCallback Callback;
private bool disposed;
private bool enabled;
private bool highestPossibleResolution;
private int interval, resolution;
@mjs3339
mjs3339 / FNV1a64.cs
Last active January 12, 2021 14:25
C# Implementation of the FNV1a Hashing Algorithm.
using System;
using System.Security.Cryptography;
[Serializable]
public class FNV1a64 : HashAlgorithm
{
private const ulong K = 0x100000001B3;
private const ulong M = 0x1000000000000000;
public ulong _hash;
public ulong Hash;
public ulong Seed = 0xCBF29CE484222325;
@mjs3339
mjs3339 / Primality.cs
Created December 28, 2017 20:00
C# Unsigned Long Primality Class Sieve, isCarmichael, Deterministic, MillerRabin, SolovayStrassen, Fermat
public static class Primality
{
public static readonly int[] Primes4k =
{
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151,
157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313,
317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491,
499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677,
683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881,
883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997, 1009, 1013, 1019, 1021, 1031, 1033, 1039, 1049,
@mjs3339
mjs3339 / sysinfo.cpp
Created December 29, 2017 16:05
C++ A Collection of Low Level Functions for the CPU
#include "SysInfo.h"
#include <intrin.h>
BOOL __stdcall DllMain(HINSTANCE hInst, DWORD dwReason, LPVOID lpReserved)
{
return TRUE;
}
extern "C" __declspec(dllexport) bool __stdcall tsc_supported()
{