Re: [Quantlib-dev] question about vector of handl

[Eric E. <eri...@na...>]

Hello,

On Fri, 2009-11-06 at 14:52 +0800, Yang, Rui wrote:
> Hihi,
> 
>  
> 
> I have a problem to define a constructor which takes vector of handles
> as arguments, like 
> 
> conststd::vector<QuantLib::Handle<QuantLib::YieldTermStructure> >&
> 
>  
> 
> I can see const QuantLib::Handle<QuantLib::YieldTermStructure>& in
> QuantLibObjects
> 
> The xml is defined as: 
> 
>           <Parameter name='YieldCurve' exampleValue='EURYC'
> default='""'>
> 
>             <type>QuantLib::YieldTermStructure</type>
> 
>             <superType>libToHandle</superType>
> 
>             <tensorRank>scalar</tensorRank>
> 
>             <description>forecasting yield term
> structure.</description>
> 
>           </Parameter>
> 
>  
> 
> Accordingly, I define my xml as:
> 
>           <Parameter name='YieldCurve' exampleValue='EURYC'
> default='""'>
> 
>             <type>QuantLib::YieldTermStructure</type>
> 
>             <superType>libToHandle</superType>
> 
>             <tensorRank>vector</tensorRank>
> 
>             <description>forecasting yield term
> structure.</description>
> 
>           </Parameter>
> 
>  
> 
> But when the create_ xxx.cpp is generated, I get one statement:
> 
> std::vector<boost::shared_ptr<QuantLib::YieldTermStructure> >
> DiscountCurvesLibObj =
> 
> ObjectHandler::ohVariantToObjectVector<QuantLib::YieldTermStructure,
> QuantLibAddin::YieldTermStructure>(
> 
>             DiscountCurves, "DiscountCurves");
> 
>  
> 
> This get the error msg: 'ohVariantToObjectVector' : is not a member of
> 'ObjectHandler'
> 
> My version is ql_0_9_7. In this version, I can’t find
> 'ohVariantToObjectVector' in 'ObjectHandler'. But in previous version,
> I can. It seems I didn’t define the xml file correctly. Can anybody
> tell me how to solve this problem? Thanks a lot for your help!

My best guess would be that you defined the XML file correctly, but that
the resulting autogenerated code requires a conversion function that has
not been implemented.

If you see that conversion function in a previous release it probably
means that I deleted it because it was broken and no longer required for
the core code.

Regards,
Eric