From: Jens Vollinga <vollinga@thep.physik.uni-mainz.de>
Date: Mon, 9 Aug 2004 18:32:56 +0000 (+0000)
Subject: Synced to HEAD
X-Git-Tag: release_1-3-0~35
X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=commitdiff_plain;h=1acadaea2a80886aac7afa758d9b250880b6f186;hp=4b70436fd4b5d1059636b34844a5c3737af628b2

Synced to HEAD
---

diff --git a/ginac/pseries.cpp b/ginac/pseries.cpp
index 443969c1..993eacf1 100644
--- a/ginac/pseries.cpp
+++ b/ginac/pseries.cpp
@@ -971,7 +971,12 @@ ex power::series(const relational & r, int order, unsigned options) const
 
 	// No, expand basis into series
 
-	numeric numexp = ex_to<numeric>(exponent);
+	numeric numexp;
+	if (is_a<numeric>(exponent)) {
+		numexp = ex_to<numeric>(exponent);
+	} else {
+		numexp = 0;
+	}
 	const ex& sym = r.lhs();
 	// find existing minimal degree
 	int real_ldegree = basis.expand().ldegree(sym-r.rhs());