update bundled_deps

bundled_deps/libigl/igl/directed_edge_parents.h

@@ -0,0 +1,32 @@
+// This file is part of libigl, a simple c++ geometry processing library.
+// 
+// Copyright (C) 2014 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_DIRECTED_EDGE_PARENTS_H
+#define IGL_DIRECTED_EDGE_PARENTS_H
+#include "igl_inline.h"
+
+#include <Eigen/Dense>
+
+namespace igl
+{
+  // Recover "parents" (preceding edges) in a tree given just directed edges.
+  //
+  // Inputs:
+  //   E  #E by 2 list of directed edges
+  // Outputs:
+  //   P  #E list of parent indices into E (-1) means root
+  //
+  template <typename DerivedE, typename DerivedP>
+  IGL_INLINE void directed_edge_parents(
+    const Eigen::PlainObjectBase<DerivedE> & E,
+    Eigen::PlainObjectBase<DerivedP> & P);
+}
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "directed_edge_parents.cpp"
+#endif
+#endif