Refactor folder (#10475)

Move many third-party components' source codes from the src folder to a new folder called deps_src. The goal is to make the code structure clearer and easier to navigate.

deps_src/libigl/igl/rows_to_matrix.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_ROWS_TO_MATRIX_H
+#define IGL_ROWS_TO_MATRIX_H
+#include "igl_inline.h"
+#include <vector>
+namespace igl
+{
+  // Convert a list (std::vector) of row vectors of the same length to a matrix
+  // Template: 
+  //   Row  row vector type, must implement:
+  //     .size()
+  //   Mat  Matrix type, must implement:
+  //     .resize(m,n)
+  //     .row(i) = Row
+  // Inputs:
+  //   V  a m-long list of vectors of size n
+  // Outputs:
+  //   M  an m by n matrix
+  // Returns true on success, false on errors
+  template <class Row, class Mat>
+  IGL_INLINE bool rows_to_matrix(const std::vector<Row> & V,Mat & M);
+}
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "rows_to_matrix.cpp"
+#endif
+
+#endif