[C++-sig] Re: Making copy of function derived from C++ pure virtual function

[Paul F. Kunz]

>>>>> On Fri, 10 Dec 2004 14:45:02 -0500, David Abrahams <dave at boost-consulting.com> said:

> Paul F. Kunz wrote:
>>>>>>> On Fri, 10 Dec 2004 07:38:12 -0800, "Paul F. Kunz"
>>>>>>> <Paul_Kunz at slac.stanford.edu> said:
>>
>>>>>>> On Thu, 09 Dec 2004 20:37:18 -0500, David Abrahams
>>>>>>> <dave at boost-consulting.com> said:
>>>> Sorry, this should be:
>>
>>>> class_<FunctionWrap, std::auto_ptr<FunctionWrap> >(
>>>> "FunctionBase", init<FunctionBase const&>())
>>
>>> Ok, that compiles.  Obvious no that I see it.
>>
>>> But now at run time I get...
>>  Replying to my own item, I got pass the runtime error by doing the
>> following instead of the above...
>> 
>> class_ < FunctionBase, std::auto_ptr< FunctionWrap> > (
>> "FunctionBase" )

> Don't do that; the code I suggested was there for a reason.

   Ok.

>  I think
> I have a bug, but it will help a lot to have a test case.  Can you
> back up a step to the previous version that compiled and make a
> reduced test case for me to test my changes against?

   I'll try.   Frequently, it is hard to pull something out because
large dependency on other parts of a large project.   In this case, I
think there's only one external class envolved.