Re: Using C++ DLM's With IDL?

[Nigel Wade <nmw(at)ion.le.ac.uk>]

K. Banerjee wrote:

> I need to call some outside code from IDL. I created a 
> shared object file, using a C++ compiler (g++). When I call
> a function from the DLM from the IDL command prompt, I get
> the error:
> 
> Symbol not found: cerr
> 
> (There are other symbols not found.)
> 
> Is it possible to use C++ shared objects for DLM's ?
> (I have to use some classes for my routine.)
> 
> Thanks.
> 
> K. Banerjee
> 
> 

You don't say what platform you are using, but I'll hazzard a guess that 
it's Linux.

Did you use g++ to link the DLM? It's generally a wise thing to use the 
same tool to create a shared object as you use to compile the source.

You could try linking the DLM with g++, or adding the the relevent c++ 
library to the link command - cerr is in one of the libraries called 
/usr/lib/libstdc++..., the particular one depends on what version of g++ 
and libc you are using.

-- 
-----------------------------------------------------------
Nigel Wade, System Administrator, Space Plasma Physics Group,
             University of Leicester, Leicester, LE1 7RH, UK
E-mail :    nmw@ion.le.ac.uk
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