update bundled_deps

bundled_deps/libigl/igl/isdiag.cpp

@@ -0,0 +1,32 @@
+// This file is part of libigl, a simple c++ geometry processing library.
+// 
+// Copyright (C) 2016 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/.
+#include "isdiag.h"
+
+template <typename Scalar>
+IGL_INLINE bool igl::isdiag(const Eigen::SparseMatrix<Scalar> & A)
+{
+  // Iterate over outside of A
+  for(int k=0; k<A.outerSize(); ++k)
+  {
+    // Iterate over inside
+    for(typename Eigen::SparseMatrix<Scalar>::InnerIterator it (A,k); it; ++it)
+    {
+      if(it.row() != it.col() && it.value()!=0)
+      {
+        return false;
+      }
+    }
+  }
+  return true;
+}
+
+
+#ifdef IGL_STATIC_LIBRARY
+// Explicit template instantiation
+template bool igl::isdiag<double>(class Eigen::SparseMatrix<double,0,int> const &);
+#endif