Function Graph_RemoveNodeLabels

src/graph/graph.c:763–794

dissociates each label in 'lbls' from given node

// dissociates each label in 'lbls' from given node
void Graph_RemoveNodeLabels
(
	Graph *g,       // graph to operate against
	NodeID id,      // node ID to update
	LabelID  *lbls, // set of labels to remove
	uint lbl_count  // number of labels to remove
) {
	ASSERT(g != NULL);
	ASSERT(id != INVALID_ENTITY_ID);
	ASSERT(lbls != NULL);
	ASSERT(lbl_count > 0);

	GrB_Info info;
	UNUSED(info);

	RG_Matrix nl = Graph_GetNodeLabelMatrix(g);
	for(uint i = 0; i < lbl_count; i++) {
		LabelID   l = lbls[i];
		RG_Matrix M = Graph_GetLabelMatrix(g, l);

		// remove matrix at position [id, id]
		info = RG_Matrix_removeElement_BOOL(M, id, id);
		ASSERT(info == GrB_SUCCESS);

		// remove this label from node's set of labels
		info = RG_Matrix_removeElement_BOOL(nl, id, l);
		ASSERT(info == GrB_SUCCESS);

		// a label was removed from node, update statistics
		GraphStatistics_DecNodeCount(&g->stats, l, 1);
	}
}

bool Graph_FormConnection
(