lead_row() [2/2]

template<typename CoeffRing>

size_t SMat< CoeffRing >::lead_row	(	size_t	col,
		elem &	result ) const

Definition at line 878 of file smat.hpp.

{
  sparsevec *v = columns_[col];
  if (v == 0) return -1;
  ring().init_set(result, v->coeff);
  return v->row;
}

References SMat< ACoeffRing >::sparsevec::coeff, columns_, result(), ring(), and SMat< ACoeffRing >::sparsevec::row.