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diff --git a/i/marvin/src/data/data_input_file.cc b/i/marvin/src/data/data_input_file.cc
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+// data_input_file.cc
+// robert - programme du robot 2005. {{{
+//
+// Copyright (C) 2005 Nicolas Schodet
+//
+// Robot APB Team/Efrei 2005.
+// Web: http://assos.efrei.fr/robot/
+// Email: robot AT efrei DOT fr
+//
+// 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 2 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, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+//
+// }}}
+#include "data_input_file.hh"
+#include "utils/errno_exception.hh"
+
+/// Constructeur.
+DataInputFile::DataInputFile (const std::string &name)
+ : name_ (name), file_ (name.c_str ())
+{
+ if (!file_)
+ throw errno_exception (name_, errno);
+}
+
+/// Lit des données. Même convention que le read de la libc, mais lance
+/// une exception en cas d'erreur.
+unsigned
+DataInputFile::read (uint8_t *buf, unsigned size)
+{
+ file_.read (reinterpret_cast<char *> (buf), size);
+ if (file_.bad ())
+ throw errno_exception (name_, errno);
+ return file_.gcount ();
+}
+