minor optimization in power::expand_add

diff --git a/ginac/power.cpp b/ginac/power.cpp
index 5cddca8995bd475c6b6f56f5a7c8d5670280fa6a..a3c77dc5ca5a35928f8ad15fd386f70207205368 100644 (file)
--- a/ginac/power.cpp
+++ b/ginac/power.cpp
@@ -1065,7 +1065,7 @@ multinomial_coefficient(const std::vector<int> & p)
                n += numeric(it);
                d *= factorial(numeric(it));
        }
-       return factorial(numeric(n)) / d;
+       return factorial(n) / d;
 }
 
 }  // anonymous namespace
@@ -1199,7 +1199,7 @@ ex power::expand_add(const add & a, long n, unsigned options)
                                                        factor = factor.mul(c.power(exponent[i]));
                                        }
                                }
-                               result.push_back(expair(mul(monomial).expand(options), factor));
+                               result.push_back(expair(mul(std::move(monomial)).expand(options), factor));
                        } while (compositions.next());
                } while (partitions.next());
        }