- added Clifford contractions:

[ginac.git] / ginac / indexed.cpp

diff --git a/ginac/indexed.cpp b/ginac/indexed.cpp
index 255fed5322fa1ed77c319a5ab5a567574a7359c5..e27a7f62acaa6f96a2029c41e0a8674a6f35cca7 100644 (file)
--- a/ginac/indexed.cpp
+++ b/ginac/indexed.cpp
@@ -653,10 +653,8 @@ try_again:
        exvector un, dummy_indices;
        it1 = v.begin(); itend = v.end();
        while (it1 != itend) {
-               if (is_ex_of_type(*it1, indexed)) {
-                       const indexed & o = ex_to_indexed(*it1);
-                       un.insert(un.end(), o.seq.begin() + 1, o.seq.end());
-               }
+               exvector free_indices_of_factor = it1->get_free_indices();
+               un.insert(un.end(), free_indices_of_factor.begin(), free_indices_of_factor.end());
                it1++;
        }
        find_free_and_dummy(un, free_indices, dummy_indices);