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using System;
/* Contains conversion support elements such as classes, interfaces and static methods. */ namespace zlib { class SupportClass { /// <summary>
/// This method returns the literal value received
/// </summary>
/// <param name="literal">The literal to return</param>
/// <returns>The received value</returns>
public static long Identity(long literal) { return literal; }
/// <summary>
/// This method returns the literal value received
/// </summary>
/// <param name="literal">The literal to return</param>
/// <returns>The received value</returns>
public static ulong Identity(ulong literal) { return literal; }
/// <summary>
/// This method returns the literal value received
/// </summary>
/// <param name="literal">The literal to return</param>
/// <returns>The received value</returns>
public static float Identity(float literal) { return literal; }
/// <summary>
/// This method returns the literal value received
/// </summary>
/// <param name="literal">The literal to return</param>
/// <returns>The received value</returns>
public static double Identity(double literal) { return literal; }
/*******************************/ /// <summary>
/// Performs an unsigned bitwise right shift with the specified number
/// </summary>
/// <param name="number">Number to operate on</param>
/// <param name="bits">Ammount of bits to shift</param>
/// <returns>The resulting number from the shift operation</returns>
public static int URShift(int number, int bits) { if ( number >= 0) return number >> bits; else return (number >> bits) + (2 << ~bits); }
/// <summary>
/// Performs an unsigned bitwise right shift with the specified number
/// </summary>
/// <param name="number">Number to operate on</param>
/// <param name="bits">Ammount of bits to shift</param>
/// <returns>The resulting number from the shift operation</returns>
public static int URShift(int number, long bits) { return URShift(number, (int)bits); }
/// <summary>
/// Performs an unsigned bitwise right shift with the specified number
/// </summary>
/// <param name="number">Number to operate on</param>
/// <param name="bits">Ammount of bits to shift</param>
/// <returns>The resulting number from the shift operation</returns>
public static long URShift(long number, int bits) { if ( number >= 0) return number >> bits; else return (number >> bits) + (2L << ~bits); }
/// <summary>
/// Performs an unsigned bitwise right shift with the specified number
/// </summary>
/// <param name="number">Number to operate on</param>
/// <param name="bits">Ammount of bits to shift</param>
/// <returns>The resulting number from the shift operation</returns>
public static long URShift(long number, long bits) { return URShift(number, (int)bits); }
/*******************************/ /// <summary>Reads a number of characters from the current source Stream and writes the data to the target array at the specified index.</summary>
/// <param name="sourceStream">The source Stream to read from.</param>
/// <param name="target">Contains the array of characteres read from the source Stream.</param>
/// <param name="start">The starting index of the target array.</param>
/// <param name="count">The maximum number of characters to read from the source Stream.</param>
/// <returns>The number of characters read. The number will be less than or equal to count depending on the data available in the source Stream. Returns -1 if the end of the stream is reached.</returns>
public static System.Int32 ReadInput(System.IO.Stream sourceStream, byte[] target, int start, int count) { // Returns 0 bytes if not enough space in target
if (target.Length == 0) return 0;
byte[] receiver = new byte[target.Length]; int bytesRead = sourceStream.Read(receiver, start, count);
// Returns -1 if EOF
if (bytesRead == 0) return -1; for(int i = start; i < start + bytesRead; i++) target[i] = (byte)receiver[i]; return bytesRead; }
/// <summary>Reads a number of characters from the current source TextReader and writes the data to the target array at the specified index.</summary>
/// <param name="sourceTextReader">The source TextReader to read from</param>
/// <param name="target">Contains the array of characteres read from the source TextReader.</param>
/// <param name="start">The starting index of the target array.</param>
/// <param name="count">The maximum number of characters to read from the source TextReader.</param>
/// <returns>The number of characters read. The number will be less than or equal to count depending on the data available in the source TextReader. Returns -1 if the end of the stream is reached.</returns>
public static System.Int32 ReadInput(System.IO.TextReader sourceTextReader, byte[] target, int start, int count) { // Returns 0 bytes if not enough space in target
if (target.Length == 0) return 0;
char[] charArray = new char[target.Length]; int bytesRead = sourceTextReader.Read(charArray, start, count);
// Returns -1 if EOF
if (bytesRead == 0) return -1;
for(int index=start; index<start+bytesRead; index++) target[index] = (byte)charArray[index];
return bytesRead; }
/// <summary>
/// Converts a string to an array of bytes
/// </summary>
/// <param name="sourceString">The string to be converted</param>
/// <returns>The new array of bytes</returns>
public static byte[] ToByteArray(System.String sourceString) { return System.Text.UTF8Encoding.UTF8.GetBytes(sourceString); }
/// <summary>
/// Converts an array of bytes to an array of chars
/// </summary>
/// <param name="byteArray">The array of bytes to convert</param>
/// <returns>The new array of chars</returns>
public static char[] ToCharArray(byte[] byteArray) { return System.Text.UTF8Encoding.UTF8.GetChars(byteArray); }
/*******************************/ /// <summary>
/// Writes an object to the specified Stream
/// </summary>
/// <param name="stream">The target Stream</param>
/// <param name="objectToSend">The object to be sent</param>
public static void Serialize(System.IO.Stream stream, System.Object objectToSend) { System.Runtime.Serialization.Formatters.Binary.BinaryFormatter formatter = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter(); formatter.Serialize(stream, objectToSend); }
/// <summary>
/// Writes an object to the specified BinaryWriter
/// </summary>
/// <param name="binaryWriter">The target BinaryWriter</param>
/// <param name="objectToSend">The object to be sent</param>
public static void Serialize(System.IO.BinaryWriter binaryWriter, System.Object objectToSend) { System.Runtime.Serialization.Formatters.Binary.BinaryFormatter formatter = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter(); formatter.Serialize(binaryWriter.BaseStream, objectToSend); }
/*******************************/ /// <summary>
/// Deserializes an object, or an entire graph of connected objects, and returns the object intance
/// </summary>
/// <param name="binaryReader">Reader instance used to read the object</param>
/// <returns>The object instance</returns>
public static System.Object Deserialize(System.IO.BinaryReader binaryReader) { System.Runtime.Serialization.Formatters.Binary.BinaryFormatter formatter = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter(); return formatter.Deserialize(binaryReader.BaseStream); }
/*******************************/ /// <summary>
/// Writes the exception stack trace to the received stream
/// </summary>
/// <param name="throwable">Exception to obtain information from</param>
/// <param name="stream">Output sream used to write to</param>
public static void WriteStackTrace(System.Exception throwable, System.IO.TextWriter stream) { stream.Write(throwable.StackTrace); stream.Flush(); }
} }
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