Re: [Boost-users] Windows: Mixed .NET and native C++ with Boost

Subject: Re: [Boost-users] Windows: Mixed .NET and native C++ with Boost
From: Ewald, Christian (che_at_[hidden])
Date: 2010-01-15 02:11:50

Richwin, Dr. Matthias wrote:
> Hi all,
> 
> I try the following scenario:
> 
> - a C++ library (my own code), unmanaged, makes use of boost (e.g. 
> regex)
> - a C++ .NET application (windows forms based) planned as GUI (having 
> used Borland C++ builder in the past, the windows forms approach looks 
> quite appealing to me)
> 
> - my C++ library header is included in the .Net form header file 
> wrapped in a #pragma unmanaged/managed pair.
> 
> I compiles and links well.
> 
> For simple test purposes, I instantiate a class from my C++ library in 
> the form constructor. Calling some unmanaged code from my library 
> there creates a debug assertion:
> 
> "Debug Assertion Failed!
> [...]
> Expression: _CrtIsValidHeapPointer(pUserData)
Well, its a bit off topic, and I don't know exactly the cause of the assertion failure.

But, I have a different approach for you:
I usually pack all my unmanaged/native C++ stuff in static libraries and link them into a managed C++ class library. By adding some managed C++ wrapping code, hiding all unmanaged stuff from the class libraries' interface, I'm even able to use such class libraries from C# or other CLR languages.

I did this several times, with alot of boost on the unmanaged side.