Merged branch 'dev_native' into lm_sla_supports_auto

Added igl library files

src/igl/face_occurrences.h

@@ -0,0 +1,34 @@
+// This file is part of libigl, a simple c++ geometry processing library.
+// 
+// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
+// 
+// This Source Code Form is subject to the terms of the Mozilla Public License 
+// v. 2.0. If a copy of the MPL was not distributed with this file, You can 
+// obtain one at http://mozilla.org/MPL/2.0/.
+#ifndef IGL_FACE_OCCURRENCES
+#define IGL_FACE_OCCURRENCES
+#include "igl_inline.h"
+
+#include <vector>
+namespace igl
+{
+  // Count the occruances of each face (row) in a list of face indices
+  // (irrespecitive of order)
+  // Inputs:
+  //   F  #F by simplex-size
+  // Outputs
+  //   C  #F list of counts
+  // Known bug: triangles/tets only (where ignoring order still gives simplex)
+  template <typename IntegerF, typename IntegerC>
+  IGL_INLINE void face_occurrences(
+    const std::vector<std::vector<IntegerF> > & F,
+    std::vector<IntegerC> & C);
+}
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "face_occurrences.cpp"
+#endif
+
+#endif
+
+