Merged branch 'dev_native' into lm_sla_supports_auto

Added igl library files

src/igl/is_readable.h

@@ -0,0 +1,28 @@
+// 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_READABLE_H
+#define IGL_IS_READABLE_H
+#include "igl_inline.h"
+namespace igl
+{
+  // Check if a file is reabable like PHP's is_readable function:
+  // http://www.php.net/manual/en/function.is-readable.php
+  // Input:
+  //   filename  path to file
+  // Returns true if file exists and is readable and false if file doesn't
+  // exist or *is not readable*
+  //
+  // Note: Windows version will not check user or group ids
+  IGL_INLINE bool is_readable(const char * filename);
+}
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "is_readable.cpp"
+#endif
+
+#endif