Merged branch 'dev_native' into lm_sla_supports_auto

Added igl library files

src/igl/is_dir.h

@@ -0,0 +1,29 @@
+// 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_DIR_H
+#define IGL_IS_DIR_H
+#include "igl_inline.h"
+namespace igl
+{
+  // Act like php's is_dir function
+  // http://php.net/manual/en/function.is-dir.php
+  // Tells whether the given filename is a directory.
+  // Input:
+  //   filename  Path to the file. If filename is a relative filename, it will
+  //     be checked relative to the current working directory. 
+  // Returns TRUE if the filename exists and is a directory, FALSE
+  // otherwise.
+  IGL_INLINE bool is_dir(const char * filename);
+
+}
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "is_dir.cpp"
+#endif
+
+#endif