Contains reusable methods for operations pertaining to int values
package com.adobe.utils {
import flash.utils.Endian;
/** * Contains reusable methods for operations pertaining * to int values. */ public class IntUtil {
/** * Rotates x left n bits * * @langversion ActionScript 3.0 * @playerversion Flash 9.0 * @tiptext */ public static function rol ( x:int, n:int ):int { return ( x << n ) | ( x >>> ( 32 - n ) ); }
/** * Rotates x right n bits * * @langversion ActionScript 3.0 * @playerversion Flash 9.0 * @tiptext */ public static function ror ( x:int, n:int ):uint { var nn:int = 32 - n; return ( x << nn ) | ( x >>> ( 32 - nn ) ); }
/** String for quick lookup of a hex character based on index */ private static var hexChars:String = "0123456789abcdef";
/** * Outputs the hex value of a int, allowing the developer to specify * the endinaness in the process. Hex output is lowercase. * * @param n The int value to output as hex * @param bigEndian Flag to output the int as big or little endian * @return A string of length 8 corresponding to the * hex representation of n ( minus the leading "0x" ) * @langversion ActionScript 3.0 * @playerversion Flash 9.0 * @tiptext */ public static function toHex( n:int, bigEndian:Boolean = false ):String { var s:String = "";
if ( bigEndian ) { for ( var i:int = 0; i < 4; i++ ) { s += hexChars.charAt( ( n >> ( ( 3 - i ) * 8 + 4 ) ) & 0xF ) + hexChars.charAt( ( n >> ( ( 3 - i ) * 8 ) ) & 0xF ); } } else { for ( var x:int = 0; x < 4; x++ ) { s += hexChars.charAt( ( n >> ( x * 8 + 4 ) ) & 0xF ) + hexChars.charAt( ( n >> ( x * 8 ) ) & 0xF ); } }
return s; } }
}
Related Scripts with Example Source Code in same category :