Re: concerns when integrating C++ code into guile?

[Matt Wette]

On Jan 7, 2015, at 2:09 AM, Hans Aberg <address@hidden> wrote:
>> On 7 Jan 2015, at 03:32, Matt Wette <address@hidden> wrote:
>> 
>> What are the concerns when integrating C++ code into guile?
>> 
>> I'm guessing interleaved C++ exception handling, but are there others.
>> 
>> Assuming the C++ code calls no guile code, should all C++ exceptions be 
>> caught at the interface?
> 
> In the C/C++ languages proper, C++ can link in C code, but not vice versa, C 
> code can not link in C++ code. So main() must be in C++.
> 
> Then one can convert Guile exceptions into C++ exceptions - I do that in [1].
> 
> For the other way around, Guile C code calling C++, that is possible in gcc I 
> recall, but unless Guile is recompiled with a special option adding the C++ 
> exception stacks, any exception one tries pass through the Guile code will 
> terminate the program.
> 
> Possibly Guile might have a configure option adding those C++ exception 
> stacks.
> 
> 1. 1. 
> https://secure2.storegate.com/Shares/Home.aspx?ShareID=e195dec2-1c1a-42a1-851e-da47e674d91b

Python is written in C yet Qt has been integrated in to produce PyQt.   I 
wonder how that is done.  I will take a look.