Got it. Thanks Paul.
Sincerely Yours,
Lei Shi
----------
On Wed, Oct 24, 2012 at 3:12 PM, Paul T. Bauman <ptbau...@gmail.com> wrote:
> On Wed, Oct 24, 2012 at 3:03 PM, Lei Shi <stonesz...@gmail.com> wrote:
>
>> BTW, I'm confused about the difference between the template class
>> FEGenericBase and pure virtual class FEAbstract. Why do we need FEAbstract?
>> It seems that we can put everything from FEAbstract into FEGenericBase.
>> Since all FE class just inherits from FEGenericBase. Why add an extra level
>> to the class inheritance hierarchy?
>>
>
> FEGenericBase is templated on the "OutputType", namely scalar-valued or
> vector-valued. We keep FEAbstract separate because there are places in the
> code where we don't care about the type and only need access to the common
> structure contained in FEAbstract, as opposed to other places where we need
> to the type.
>
> Paul
>
>
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