[Mono-dev] Mono runtime segfault

David Carr dc at dcarr.org
Tue Aug 23 09:33:01 EDT 2005


Feelite et at,

Thanks for the help with my problem.  Looks like I have a bit more
learning to do...
Should I file a bug report indicating that a StackOverflowException
should be thrown in this situation?

Thanks for your time,
David Carr

feelite qiu wrote:

> hi David
>
> the code snippet
>
>    int var
>    {
>    get { return var; }
>    set { var = value; }
>    }
>
>
> creates an infinite loop as properties are internally implemented as
> methods. So when you instantiate the object,
>
>  Crash c = new Crash(10);
>
> This chain of action is what I understand
>
> new Crash(10) -> var = 10; -> set { var = 10; } ->  get { return var;
> } ->  get { return var; } ->...
>
> the error lies in the fact that your property var does not refer to an
> underlying field. You can try
>
> int Var;
>  int var
>    {
>    get { return Var; }
>    set { Var = value; }
>    }
>
>
> regards
> feelite
>
> On 8/23/05, *David Carr* <dc at dcarr.org <mailto:dc at dcarr.org>> wrote:
>
>     I'm getting an unexpected segfault running the code below:  Forgive me
>     if its a silly mistake on my part.
>
>     Thanks for any help,
>     David Carr
>
>     david at Cadmium ~/Prog/c#/gcross $ mono Crash.exe
>     Segmentation fault
>
>     Listing for Crash.cs:
>     public class Crash
>     {
>         int var
>         {
>         get { return var; }
>         set { var = value; }
>         }
>
>         public Crash(int i)
>         {
>         var = i;
>         }
>
>         public static void Main()
>         {
>         Crash c = new Crash(10);
>         }
>
>     }
>
>     mono --version
>     Mono JIT compiler version 1.1.8.3 <http://1.1.8.3>, (C) 2002-2005
>     Novell, Inc and
>     Contributors. www.mono-project.com <http://www.mono-project.com>
>             TLS:           __thread
>             GC:            Included Boehm (with typed GC)
>             SIGSEGV      : normal
>             Globalization: normal
>
>     compiled from source with:
>     gcc --version
>     gcc (GCC) 3.3.5-20050130 (Gentoo Linux 3.3.5.20050130-r1,
>     ssp-3.3.5.20050130-1 , pie-8.7.7.1)
>     Copyright (C) 2003 Free Software Foundation, Inc.
>     This is free software; see the source for copying
>     conditions.  There is NO
>     warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
>     PURPOSE.
>     _______________________________________________
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>
>
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