Function RG_MatrixTupleIter_next_BOOL

src/graph/rg_matrix/rg_matrix_iter.c:170–200

advance iterator

// advance iterator
GrB_Info RG_MatrixTupleIter_next_BOOL
(
	RG_MatrixTupleIter *iter,       // iterator to consume
	GrB_Index *row,                 // optional output row index
	GrB_Index *col,                 // optional output column index
	bool *val                       // optional value at A[row, col]
) {
	if(IS_DETACHED(iter)) return GrB_NULL_POINTER ;

	GrB_Info             info     =  GrB_SUCCESS                    ;
	GrB_Matrix           DM       =  RG_MATRIX_DELTA_MINUS(iter->A) ;
	GxB_Iterator         dp_it    =  &iter->dp_it                   ;

	if(!iter->m_depleted) {
		info = _next_m_iter_bool(iter, DM, row, col, val, &iter->m_depleted) ;
		if(info == GrB_SUCCESS) return GrB_SUCCESS ;
	}

	if(iter->dp_depleted) {
		return GxB_EXHAUSTED ;
	}

	if(row) *row = GxB_rowIterator_getRowIndex (dp_it) ;
	if(col) *col = GxB_rowIterator_getColIndex (dp_it) ;
	if(val) *val = GxB_Iterator_get_BOOL (dp_it) ;

	// prep value for next iteration
	_iter_next(dp_it, iter->max_row, &iter->dp_depleted);

	return GrB_SUCCESS ;
}

// iterate over M matrix
static GrB_Info _next_m_iter_uint64