some cleanups

[ginac.git] / ginac / symmetry.cpp

diff --git a/ginac/symmetry.cpp b/ginac/symmetry.cpp
index a07fbe7eb11ccce7b5c8edc8fb623884f1536757..7d56f6ab09453d3ec0ba1a2251194198177c1ffa 100644 (file)
--- a/ginac/symmetry.cpp
+++ b/ginac/symmetry.cpp
@@ -164,9 +164,10 @@ void symmetry::print(const print_context & c, unsigned level = 0) const
                        default: c.s << '?'; break;
                }
                c.s << '(';
-               for (unsigned i=0; i<children.size(); i++) {
+               unsigned num = children.size();
+               for (unsigned i=0; i<num; i++) {
                        children[i].print(c);
-                       if (i != children.size() - 1)
+                       if (i != num - 1)
                                c.s << ",";
                }
                c.s << ')';