[mono-vb] Reporting 2 possible errors

[Rolf Bjarne Kvinge]

Hi,

Thanks for the report, I have now fixed the first error, and the second
error was already fixed some time ago (2.4 is quite old by now).

Rolf

>-----Original Message-----
>From: mono-vb-bounces at lists.ximian.com [mailto:mono-vb-
>bounces at lists.ximian.com] On Behalf Of Jan Bodnar
>Sent: viernes, 17 de septiembre de 2010 21:47
>To: mono-vb at lists.ximian.com
>Subject: [mono-vb] Reporting 2 possible errors
>
>
>Hi,
>
>I am writing a Visual Basic tutorial. Mainly I use the mono compiler.
>Examples were tested on Visual Basic.Net Compiler version 0.0.0.5914 (Mono
>2.4.2 - r).
>They compiled OK and worked on Visual Basic 2008 Express Edition.
>
>While working on the tutorial, I have bumped into the 2 following errors:
>
>********************************************************
>
>The first one. There is a problem with a Ref keyword.
>
>$ ./swap2.exe
>Outside Swap procedure
>a is 4
>b is 7
>
>Unhandled Exception: System.InvalidProgramException: Invalid IL code in
>Example:Swap (byte&,byte&): IL_001b: call      0x0a000002
>
>
>  at Example.Main () [0x00000]
>
>
>
>
>Option Strict On
>
>
>Module Example
>
>    Dim a As Byte = 4
>    Dim b As Byte = 7
>
>    Sub Main
>
>        Console.WriteLine("Outside Swap procedure")
>        Console.WriteLine("a is {0}", a)
>        Console.WriteLine("b is {0}", b)
>
>        Swap(a, b)
>
>        Console.WriteLine("Outside Swap procedure")
>        Console.WriteLine("a is {0}", a)
>        Console.WriteLine("b is {0}", b)
>
>    End Sub
>
>
>    Sub Swap(ByRef a As Byte, ByRef b As Byte)
>        Dim temp As Byte
>        temp = a
>        a = b
>        b = temp
>        Console.WriteLine("Inside Swap procedure")
>        Console.WriteLine("a is {0}", a)
>        Console.WriteLine("b is {0}", b)
>    End Sub
>
>End Module
>
>
>********************************************************
>
>Second One
>
>The compiler does not compile the following construct. In this example,
>I want to retrieve keys and values from the dictionary.
>
>Dim keys As Dictionary(Of String, String).KeyCollection = domains.Keys
>
>
>Option Strict On
>
>Imports System.Collections.Generic
>
>Module Example
>
>    Sub Main()
>
>        Dim domains As New Dictionary(Of String, String)
>
>        domains.Add("de", "Germany")
>        domains.Add("sk", "Slovakia")
>        domains.Add("us", "United States")
>        domains.Add("ru", "Russia")
>        domains.Add("hu", "Hungary")
>        domains.Add("pl", "Poland")
>
>        Console.WriteLine(domains("sk"))
>        Console.WriteLine(domains("de"))
>
>        Console.WriteLine("Dictionary has {0} items", _
>            domains.Count)
>
>        Console.WriteLine("Keys of the dictionary:")
>
>        Dim keys As Dictionary(Of String, String).KeyCollection =
>domains.Keys
>
>        For Each key As String In keys
>            Console.WriteLine("{0}", key)
>        Next
>
>        Console.WriteLine("Values of the dictionary:")
>
>        Dim vals As Dictionary(Of String, String).ValueCollection =
>domains.Values
>
>        For Each val As String In vals
>            Console.WriteLine("{0}", val)
>        Next
>
>        Console.WriteLine("Keys and values of the dictionary:")
>
>        For Each kvp As KeyValuePair(Of String, String) In domains
>            Console.WriteLine("Key = {0}, Value = {1}", _
>                kvp.Key, kvp.Value)
>        Next
>
>    End Sub
>
>End Module
>
>
>
>
>
>--
>View this message in context: http://mono.1490590.n4.nabble.com/Reporting-
>2-possible-errors-tp2544355p2544355.html
>Sent from the Mono - VB mailing list archive at Nabble.com.
>_______________________________________________
>Mono-vb mailing list
>Mono-vb at lists.ximian.com
>http://lists.ximian.com/mailman/listinfo/mono-vb