Update 2012-11-03-value-classes.md

Brian Gordon · Brian Gordon · commit bf43041e3488 · 2015-05-14T21:14:02.000-07:00
The "implicit" keyword needs to be present in order to allow the expression `3.toHexString` as promised.
diff --git a/overviews/core/_posts/2012-11-03-value-classes.md b/overviews/core/_posts/2012-11-03-value-classes.md
@@ -47,7 +47,7 @@ One use case for value classes is to combine them with implicit classes ([SIP-13
 
 The following fragment of `RichInt` shows how it extends `Int` to allow the expression `3.toHexString`:
 
-    class RichInt(val self: Int) extends AnyVal {
+    implicit class RichInt(val self: Int) extends AnyVal {
       def toHexString: String = java.lang.Integer.toHexString(self)
     }
 

Original file line number	Diff line number	Diff line change
`@@ -47,7 +47,7 @@ One use case for value classes is to combine them with implicit classes ([SIP-13`
`47`	`47`
`48`	`48`	The following fragment of `RichInt` shows how it extends `Int` to allow the expression `3.toHexString`:
`49`	`49`
`50`		`- class RichInt(val self: Int) extends AnyVal {`
	`50`	`+ implicit class RichInt(val self: Int) extends AnyVal {`
`51`	`51`	`def toHexString: String = java.lang.Integer.toHexString(self)`
`52`	`52`	`}`
`53`	`53`