update bundled_deps

bundled_deps/libigl/igl/is_sparse.h

@@ -0,0 +1,36 @@
+// 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_IS_SPARSE_H
+#define IGL_IS_SPARSE_H
+#include "igl_inline.h"
+#define EIGEN_YES_I_KNOW_SPARSE_MODULE_IS_NOT_STABLE_YET
+#include <Eigen/Dense>
+#include <Eigen/Sparse>
+namespace igl
+{
+  // Determine if a matrix A is sparse
+  //
+  // Template:
+  //   T,DerivedA defines scalar type
+  // Inputs:
+  //   A  matrix in question
+  // Returns true if A is represented with a sparse matrix
+  template <typename T>
+  IGL_INLINE bool is_sparse(
+    const Eigen::SparseMatrix<T> & A);
+  template <typename DerivedA>
+  IGL_INLINE bool is_sparse(
+    const Eigen::PlainObjectBase<DerivedA>& A);
+}
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "is_sparse.cpp"
+#endif
+
+#endif
+