matrixFromSparseMatrixGenerator()

template<typename Gen>

Matrix * matrixFromSparseMatrixGenerator

(

Gen &

G

)

Definition at line 563 of file res-f4-m2-interface.cpp.

{
  const Ring* R = G.ring();
  MatrixConstructor M(R->make_FreeModule(G.numRows()), R->make_FreeModule(G.numColumns()), nullptr);
  for (auto i = G.begin(); i != G.end(); ++i)
    {
      for (int j=i.components().size()-1; j>=0; --j)
      {
        M.set_entry(i.components()[j], i.column(), R->from_long(i.coefficients()[j]));
      }
    }
  return M.to_matrix();
}

References Ring::from_long(), G, Ring::make_FreeModule(), Matrix, MatrixConstructor::set_entry(), and MatrixConstructor::to_matrix().

Referenced by SchreyerFrame::rankUsingSparseMatrix().