Bitshift for Dart

Jason L Perry · Jason L Perry · commit befd69cf46f0 · 2013-08-01T11:43:54.000-04:00
diff --git a/dart/bin/lcd.dart b/dart/bin/lcd.dart
@@ -3,7 +3,7 @@ import 'dart:io';
 import 'dart:math';
 
 class LCD {
-  static const List<int> TABLE = const [119, 36, 93, 109, 46, 107, 123, 37, 127, 111];
+  static const List<int> TABLE = const [119, 36, 93, 109, 46, 107, 123, 37, 127, 111]; // Binary notation is not available in Dart.
   static const String H_SYM = "-";
   static const String V_SYM = "|";
   static const String S_SYM = " ";
@@ -20,7 +20,7 @@ class LCD {
   }
 
   bool test(int number, int position) {
-    return (TABLE[number] & pow(2, position)) > 0;
+    return (TABLE[number] & (1 << position)) > 0;
   }
 
   void draw() {

Original file line number	Diff line number	Diff line change
`@@ -3,7 +3,7 @@ import 'dart:io';`
`3`	`3`	`import 'dart:math';`
`4`	`4`
`5`	`5`	`class LCD {`
`6`		`- static const List<int> TABLE = const [119, 36, 93, 109, 46, 107, 123, 37, 127, 111];`
	`6`	`+ static const List<int> TABLE = const [119, 36, 93, 109, 46, 107, 123, 37, 127, 111]; // Binary notation is not available in Dart.`
`7`	`7`	`static const String H_SYM = "-";`
`8`	`8`	`static const String V_SYM = "\|";`
`9`	`9`	`static const String S_SYM = " ";`
`@@ -20,7 +20,7 @@ class LCD {`
`20`	`20`	`}`
`21`	`21`
`22`	`22`	`bool test(int number, int position) {`
`23`		`- return (TABLE[number] & pow(2, position)) > 0;`
	`23`	`+ return (TABLE[number] & (1 << position)) > 0;`
`24`	`24`	`}`
`25`	`25`
`26`	`26`	`void draw() {`