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+#ifndef any_hh
+#define any_hh
+// any.hh
+// marvin - programme du robot 2006. {{{
+//
+// Copyright (C) 2003-2006 Nicolas Schodet
+//
+// Robot APB Team/Efrei 2006.
+// 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 <typeinfo>
+#include <exception>
+#include <iostream>
+
+/// This class can contain a data of almost any type. This very type must be
+/// CopyConstructible and OutputStreamable. The OutputStreamable restriction
+/// could be removed, but it is so convenient to output an any...
+class any
+{
+ class AbstractHolder;
+ AbstractHolder *holder_;
+ public:
+ /// Default constructor.
+ any (void);
+ /// Constructor.
+ template<typename T>
+ any (const T &value);
+ /// Copy constructor.
+ any (const any &other);
+ /// Destructor.
+ ~any (void);
+ /// Swap content between two any objects.
+ any &swap (any &other);
+ /// Copy another any object.
+ any &operator= (const any &other);
+ /// Copy another object into this any.
+ template<typename T>
+ any &operator= (const T &value);
+ /// Test if the any object is empty.
+ bool empty (void) const;
+ /// Return the std::type_info of the contained object.
+ const std::type_info &type (void) const;
+ private:
+ template<typename T>
+ friend T *any_cast (any *rhs);
+ friend std::ostream &operator<< (std::ostream &os, const any &rhs);
+ /// Abstract holder class.
+ class AbstractHolder
+ {
+ public:
+ /// Destructor.
+ virtual ~AbstractHolder (void);
+ virtual const std::type_info &type (void) const = 0;
+ virtual AbstractHolder *clone (void) const = 0;
+ virtual std::ostream &print (std::ostream &os) const = 0;
+ };
+ /// Holder class, templated.
+ template<typename T>
+ class Holder : public AbstractHolder
+ {
+ public:
+ T value_;
+ public:
+ Holder (const T &value);
+ virtual const std::type_info &type (void) const;
+ virtual AbstractHolder *clone (void) const;
+ virtual std::ostream &print (std::ostream &os) const;
+ };
+};
+
+/// Return a pointer to the contained object or 0 on faillure.
+template<typename T>
+T *
+any_cast (any *rhs);
+
+/// Return a const pointer to the contained object or 0 on faillure.
+template<typename T>
+const T *
+any_cast (const any *rhs);
+
+/// Return a const reference to the contained object or throw a bad_any_cast
+/// on faillure.
+template<typename T>
+const T &
+any_cast (const any &rhs);
+
+/// Object throw if a any_cast returning a reference fail.
+class bad_any_cast : public std::bad_cast
+{
+ std::string what_;
+ public:
+ /// Constructor.
+ bad_any_cast (const std::type_info &to, const std::type_info &from);
+ /// Destructor which should throw nothing.
+ virtual ~bad_any_cast() throw()
+ { }
+ /// Get the error text.
+ virtual const char *what() const throw()
+ { return what_.c_str (); }
+};
+
+/// Print the contained object.
+std::ostream &
+operator<< (std::ostream &os, const any &rhs);
+
+#include "any.tcc"
+
+#endif // any_hh