From 6496542f5a66b053f4f4a73ac9369262205f7dbf Mon Sep 17 00:00:00 2001
From: Alvin Penner <penner@vaxxine.com>
Date: Sun, 6 Sep 2015 13:27:05 -0400
Subject: for a zero sbasis, set the size to 1. (Bug 1478168)

Fixed bugs:
  - https://launchpad.net/bugs/1478168

(bzr r14346)
---
 src/2geom/sbasis.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'src/2geom/sbasis.cpp')

diff --git a/src/2geom/sbasis.cpp b/src/2geom/sbasis.cpp
index 42d92d7b8..0f4159e94 100644
--- a/src/2geom/sbasis.cpp
+++ b/src/2geom/sbasis.cpp
@@ -279,9 +279,11 @@ SBasis multiply_add(SBasis const &a, SBasis const &b, SBasis c) {
 
 */
 SBasis multiply(SBasis const &a, SBasis const &b) {
-    SBasis c(a.size() + b.size(), Linear(0,0));
-    if(a.isZero() || b.isZero())
+    if(a.isZero() || b.isZero()) {
+        SBasis c(1, Linear(0,0));
         return c;
+    }
+    SBasis c(a.size() + b.size(), Linear(0,0));
     return multiply_add(a, b, c);
 }
 #endif 
-- 
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