Merged branch 'dev_native' into lm_sla_supports_auto

Added igl library files

src/igl/cross.h

@@ -0,0 +1,42 @@
+// 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_CROSS_H
+#define IGL_CROSS_H
+#include "igl_inline.h"
+#include <Eigen/Core>
+namespace igl
+{
+  // Computes out = cross(a,b)
+  // Inputs:
+  //   a  left 3d vector
+  //   b  right 3d vector
+  // Outputs:
+  //   out  result 3d vector
+  IGL_INLINE void cross( const double *a, const double *b, double *out);
+  // Computes C = cross(A,B,2);
+  //
+  // Inputs:
+  //   A  #A by 3 list of row-vectors
+  //   B  #A by 3 list of row-vectors
+  // Outputs:
+  //   C  #A by 3 list of row-vectors
+  template <
+    typename DerivedA,
+    typename DerivedB,
+    typename DerivedC>
+  IGL_INLINE void cross(
+    const Eigen::PlainObjectBase<DerivedA> & A,
+    const Eigen::PlainObjectBase<DerivedB> & B,
+    Eigen::PlainObjectBase<DerivedC> & C);
+}
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "cross.cpp"
+#endif
+
+#endif