Re: [Swig-user] Empty template instantiation, to hide template base class, gives warning

[William S F. <ws...@fu...>]

SWIG attempts to reflect the wrapped C++ interface into the target 
language. If you don't want this, then change your interface file to 
suite. Did you try %ignore on the base? SWIG might still need the 
appropriate type information in order for %ignore to work.

William

On 22/10/13 05:45, Chris Dembia wrote:
> Thank you. What if I want to also don't want to wrap SimTK::ArrayView (the
> users of the wrapping would never want to instantiate this)?
>
>
> On Mon, Oct 21, 2013 at 12:49 PM, William S Fulton
> <ws...@fu...>wrote:
>
>> On 20/10/13 23:19, Chris Dembia wrote:
>>
>>> In the case that I am using a base class that is a template, but I do not
>>> want to wrap that template base class, the SWIG docs say to do something
>>> like the following:
>>>
>>> %template() traits<double,double>;
>>>
>>> which it calls empty template instantiation.
>>>
>>> This is exactly what I was looking for, but using this gives me 2
>>> warnings:
>>>
>>> Warning 401: Base class 'SimTK::ArrayView_< SimTK::DecorativeGeometry >'
>>> has no name as it is an empty template instantiated with '%template()'.
>>> Ignored.
>>> Warning 401: The %template directive must be written before
>>> 'SimTK::ArrayView_< SimTK::DecorativeGeometry >' is used as a base class
>>> and be declared with a name.
>>>
>>> The reason I wanted to use template() in the first place was to get rid of
>>> warnings. So am I doing something, or is the warning being generated for
>>> an
>>> expected use-case?
>>>
>>>   If SimTK::ArrayView is being used as a base class, then you should give
>> it a name in the %template and you should have the %template before it is
>> used as a base.
>>
>> William
>>
>>
>