Add header and namespace + remove unnecessary include

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/read_persistence_from_file@2537 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: fc2da43c18649c606ac4760a923684f9eef0c95e

2 files changed, 32 insertions, 4 deletions

diff --git a/src/common/doc/file_formats.h b/src/common/doc/file_formats.h
index 1f7ba201..c145b271 100644
--- a/src/common/doc/file_formats.h
+++ b/src/common/doc/file_formats.h
@@ -1,3 +1,30 @@
+/*    This file is part of the Gudhi Library. The Gudhi library
+*    (Geometric Understanding in Higher Dimensions) is a generic C++
+*    library for computational topology.
+*
+*    Author(s):       Clément Jamin
+*
+*    Copyright (C) 2017  INRIA
+*
+*    This program is free software: you can redistribute it and/or modify
+*    it under the terms of the GNU General Public License as published by
+*    the Free Software Foundation, either version 3 of the License, or
+*    (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef DOC_COMMON_FILE_FORMAT_H_
+#define DOC_COMMON_FILE_FORMAT_H_
+
+namespace Gudhi {
+
 /*! \page fileformats File formats
  
  \tableofcontents
@@ -21,5 +48,7 @@
  \endcode
 
  Other sample files can be found in the `data/persistence_diagram` folder.
- 
-*/
\ No newline at end of file
+*/
+}  // namespace Gudhi
+
+#endif  // DOC_COMMON_FILE_FORMAT_H_
diff --git a/src/common/doc/main_page.h b/src/common/doc/main_page.h
index b7f93ed2..12012ecb 100644
--- a/src/common/doc/main_page.h
+++ b/src/common/doc/main_page.h
@@ -468,5 +468,4 @@ make doxygen
  * @example Witness_complex/example_witness_complex_persistence.cpp
  * @example Witness_complex/example_witness_complex_sphere.cpp
  */
-
-#include "file_formats.h"
\ No newline at end of file
+ 
\ No newline at end of file