[Mono-devel-list] Issue of binary portability of a hello worl d application

Rob.Tillie at Student.tUL.EDU Rob.Tillie at Student.tUL.EDU
Sun Aug 8 03:02:00 EDT 2004

Hey Ioannis,


Managed C++ is not supported on Mono, and thus it is not binary compatible.
As you can see in your error, it tries to invoke some C++ code using
So, it always will be binary compatible, unless the language you use uses
pinvoke, like managed C++. (or you use it yourself).



-- Rob.



From: Ioannis Vranos [mailto:ivr at grad.com] 
Sent: Sunday, August 08, 2004 2:37 AM
To: mono-devel-list
Subject: [Mono-devel-list] Issue of binary portability of a hello world


Hello fellow developers. I just installed Mono the hard way in White Box 3
Respin 1 GNU/Linux (a Red Hat variant) because I want to experiment with
binary portability between .NET and Mono.

I created a simple CLI hello world  program with current C++ "Managed
Extensions" in VS 2003 and these are the contents of  the main .cpp file:

#include "stdafx.h"

#using <mscorlib.dll>

using namespace System;

int _tmain()
    Console::WriteLine(S"Hello World");
    return 0;

Well when I run the executable in GNU/Linux using mono Manage.exe I get the

** ERROR **: file marshal.c: line 3096 (mono_marshal_get_native_wrapper):
assertion failed: (method->signature->pinvoke)

Well it is obvious that an assert condition in Mono's code is violated (why
is it compiled in debug mode?). But why is it happening, any ideas? (apart
from the fact that assert failure indicates a bug if it is used as it is
supposed to).

Best regards,

Ioannis Vranos 

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