X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Findexed.cpp;h=81230c4d7ff1365822d9831ac6a6c562bc8ecc01;hp=5efd3083adc7d020162b265c2dad8130713d49b2;hb=af6809f55c95cf6ea6ef80bd1d19637a06f32e5a;hpb=06e1c4cc6967333ae1597d5e08dd1865ba64c1b2

diff --git a/ginac/indexed.cpp b/ginac/indexed.cpp
index 5efd3083..81230c4d 100644
--- a/ginac/indexed.cpp
+++ b/ginac/indexed.cpp
@@ -550,7 +550,7 @@ static ex rename_dummy_indices(const ex & e, exvector & global_dummy_indices, ex
 	for (unsigned i=0; i<local_size; i++)
 		local_syms.push_back(local_dummy_indices[i].op(0));
 	shaker_sort(local_syms.begin(), local_syms.end(), ex_is_less(), ex_swap());
-	for (unsigned i=0; i<global_size; i++)
+	for (unsigned i=0; i<local_size; i++) // don't use more global symbols than necessary
 		global_syms.push_back(global_dummy_indices[i].op(0));
 	shaker_sort(global_syms.begin(), global_syms.end(), ex_is_less(), ex_swap());
 
@@ -809,7 +809,7 @@ contraction_done:
 	// zero. This detects things like eps.i.j.k * p.j * p.k = 0.
 	if (local_dummy_indices.size() >= 2) {
 		lst dummy_syms;
-		for (int i=0; i<local_dummy_indices.size(); i++)
+		for (exvector::size_type i=0; i<local_dummy_indices.size(); i++)
 			dummy_syms.append(local_dummy_indices[i].op(0));
 		if (r.symmetrize(dummy_syms).is_zero()) {
 			free_indices.clear();
@@ -959,7 +959,7 @@ ex simplify_indexed(const ex & e, exvector & free_indices, exvector & dummy_indi
 
 		// Yes, construct list of all dummy index symbols
 		lst dummy_syms;
-		for (int i=0; i<dummy_indices.size(); i++)
+		for (exvector::size_type i=0; i<dummy_indices.size(); i++)
 			dummy_syms.append(dummy_indices[i].op(0));
 
 		// Chop the sum into terms and symmetrize each one over the dummy