isl_map_transitive_closure: Floyd-Warshall: properly keep track of current group

diff --git a/isl_transitive_closure.c b/isl_transitive_closure.c
index e332458..cad35c6 100644 (file)
--- a/isl_transitive_closure.c
+++ b/isl_transitive_closure.c
@@ -848,6 +848,7 @@ static int merge(isl_set **set, int *group, __isl_take isl_set *dom, int pos)
                        goto error;
                set[group[pos]] = NULL;
                group[group[pos]] = i;
+               group[pos] = i;
        }
 
        isl_set_free(dom);