2geom: Fixed an infinite loop where 2geom was trying to find the roots of an identically zero bezier.

Fixed bugs:
  - https://launchpad.net/bugs/916171

(bzr r10880)

1 files changed, 4 insertions, 0 deletions

diff --git a/src/2geom/solve-bezier.cpp b/src/2geom/solve-bezier.cpp
index b7c01b1f7..0a9f0e310 100644
--- a/src/2geom/solve-bezier.cpp
+++ b/src/2geom/solve-bezier.cpp
@@ -142,6 +142,10 @@ Bezier::find_bezier_roots(std::vector<double> &solutions,
     //convex_hull_marching(bz, bz, solutions, left_t, right_t);
     //return;
     
+    //A constant bezier, even if identically zero, has no roots
+    if (bz.isConstant())
+        return;
+    
     while(bz[0] == 0) {
         debug(std::cout << "deflate\n");
         bz = bz.deflate();