poly2tri crashes on a very simple geometry

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For some reason poly2tri creates a segmentation fault when I ask it to create 
the triangulation of a very simple geometry. I've attached a .cpp file to 
reproduce the error and a .svg file which shows the geometry.

The file was compiled with Clang 3.4 using std=c++11 on linux. Hope I have not 
forgotten something important.

Raffael

Original issue reported on code.google.com by raff...@casagrande.ch on 19 May 2014 at 12:00

Attachments:

• counterexample.cpp
• geometry.svg