[eigen] Request to change from type int to type Index for creation of larger sparse matrices

[Kyle Snow <kyle.snow@xxxxxxxxxxxxxxxxxxxxx>]

Dear Eigen Developers:

I was able to use sparse matrices of larger dimension than otherwise possible by changing a variable type from int to Index in the macro defined in line 16 of PlainObjectBase.h, which I have copied below for reference.

Would you kindly consider making this change in the next Eigen release? I would like to keep my code in sync with the Eigen repository rather than use locally modified copies of it.

Thank you,

Kyle

# define EIGEN_INITIALIZE_COEFFS_IF_THAT_OPTION_IS_ENABLED for(Index i=0;i<base().size();++i) coeffRef(i)=Scalar(0); // changed int to Index

Kyle Snow, PhD 

President
P: 614-323-0573 
polarisgeospatial.com