forked from: Vector class versus Array class

要素がリファレンスタイプの場合ほとんど速度変わらない。

by coppieee 09 Apr 2010

• Forked from Fumio's Vector class versus Array class
• Diff: 23
• Related works: 2

Tags

Array Vector,
Embed

/**
 * Copyright coppieee ( http://wonderfl.net/user/coppieee )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/6BR0
 */

//要素がリファレンスタイプの場合ほとんど速度変わらない。
package {
	import flash.display.Sprite;
	import flash.utils.getTimer;
	import flash.text.TextField;
	public class Vector_vs_Array extends Sprite {
		private static var my_txt:TextField = new TextField();
		private const MAX_NUMBER:int = 500000;
		public function Vector_vs_Array() {
			addChild(my_txt);
			testArray();
			testVector();
			testVectorFixed();
		}
		private function testArray():void {
			var started:int = getTimer();
			var xs:Array = [];
			for (var i:int = 0; i < MAX_NUMBER; i++) {
				xs[i] = new Foo();
			}
			xTrace(getTimer() - started);
		}
		private function testVector():void {
			var started:int = getTimer();
			var xs:Vector.<Foo> =  new Vector.<Foo>();
			for (var i:int = 0; i < MAX_NUMBER; i++) {
				xs[i] = new Foo();
			}
			xTrace(getTimer() - started);
		}
		private function testVectorFixed():void {
			
			var xs:Vector.<Foo> = new Vector.<Foo>(MAX_NUMBER,true);
			var started:int = getTimer();
			for (var i:int = 0; i < MAX_NUMBER; i++) {
				xs[i] = new Foo();
			}
			
			xTrace(getTimer() - started);
		}
		private static function xTrace(n:int):void {
			my_txt.appendText(n + "\n");
		}
	}
}
class Foo{}