* Restore speed lost in GiNaC-1.3.2 [V. Kisil].

[ginac.git] / ginac / power.cpp

diff --git a/ginac/power.cpp b/ginac/power.cpp
index 3dd0f48f487cc6c397ae13e70019f41e9fe2f7e9..f9dfafbfb80c55a5856195a4be9127a0f538c0fc 100644 (file)
--- a/ginac/power.cpp
+++ b/ginac/power.cpp
@@ -864,8 +864,11 @@ ex power::expand_mul(const mul & m, const numeric & n, unsigned options, bool fr
        // Leave it to multiplication since dummy indices have to be renamed
        if (get_all_dummy_indices(m).size() > 0 && n.is_positive()) {
                ex result = m;
+               exvector va = get_all_dummy_indices(m);
+               sort(va.begin(), va.end(), ex_is_less());
+
                for (int i=1; i < n.to_int(); i++)
-                       result *= rename_dummy_indices_uniquely(m,m);
+                       result *= rename_dummy_indices_uniquely(va, m);
                return result;
        }