|Re: [eigen] How to make optional template parameters in C++ ?|
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Hi Vincent, in order to write an Eigen-Matrix derived class, you can do something as I did in the attached file. In order to define default template parameters you need to add them to the class definition or forward declarations. The reason why you probably did not see the default parameter declarations in Eigen is that they are hidden in a separate file (src\Core\util\ForwardDeclarations.h). I hope that helps. Regards, Hauke On Tue, May 11, 2010 at 11:04 AM, <vincent.lejeune@xxxxxxxxxx> wrote: > Hi, > > I'm trying to make my own matrix type, which derivate from the > > Matrix< _Scalar, _Rows, _Cols, _Options, _MaxRows, _MaxCols> > > class. However, I don't know how to make the last 3 template parameters > optionals for my own type, as it is done with the Matrix type. > > > I'd like to know what's the trick used to get optional templates > parameters to > use it for my own matrix please.
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