Function Ref

Eigen/src/SparseCore/SparseRef.h:145–150

    #ifndef EIGEN_PARSED_BY_DOXYGEN
    template<int OtherOptions>
    inline Ref(SparseMatrix<MatScalar,OtherOptions,MatIndex>& expr)
    {
      EIGEN_STATIC_ASSERT(bool(Traits::template match<SparseMatrix<MatScalar,OtherOptions,MatIndex> >::MatchAtCompileTime), STORAGE_LAYOUT_DOES_NOT_MATCH);
      eigen_assert( ((Options & int(StandardCompressedFormat))==0) || (expr.isCompressed()) );
      Base::construct(expr.derived());
    }
    
    template<int OtherOptions>
    inline Ref(MappedSparseMatrix<MatScalar,OtherOptions,MatIndex>& expr)