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+#ifndef data_input_hh
+#define data_input_hh
+// data_input.hh
+// 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 <stdint.h>
+
+/// Classe d'entrée de données. C'est une sorte de istream simplifié
+/// permettant d'accéder à des données en lecture.
+class DataInput
+{
+ public:
+ /// Destructeur.
+ virtual ~DataInput (void) { }
+ /// Lit des données. Même convention que le read de la libc, mais lance
+ /// une exception en cas d'erreur.
+ virtual unsigned read (uint8_t *buf, unsigned size) = 0;
+ /// Lit un caractère. Renvois -1 en cas de fin de fichier.
+ int getc (void);
+};
+
+#endif // data_input_hh