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+// any.tcc
+// robert - programme du robot 2005. {{{
+//
+// Copyright (C) 2004 Nicolas Schodet
+//
+// 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.
+//
+// Contact :
+// Web: http://perso.efrei.fr/~schodet/
+// Email: <contact@ni.fr.eu.org>
+// }}}
+#include "list_ostream_output.hh"
+
+#include <algorithm>
+
+/// Default constructor.
+inline
+any::any (void)
+ : holder_ (0)
+{
+}
+
+/// Constructor.
+template<typename T>
+any::any (const T &value)
+ : holder_ (new Holder<T> (value))
+{
+}
+
+/// Copy constructor.
+inline
+any::any (const any &other)
+ : holder_ (other.holder_ ? other.holder_->clone () : 0)
+{
+}
+
+/// Destructor.
+inline
+any::~any (void)
+{
+ delete holder_;
+}
+
+/// Swap content between two any objects.
+inline
+any &
+any::swap (any &other)
+{
+ std::swap (holder_, other.holder_);
+ return *this;
+}
+
+/// Copy another any object.
+inline
+any &
+any::operator= (const any &other)
+{
+ any (other).swap (*this);
+ return *this;
+}
+
+/// Copy another object into this any.
+template<typename T>
+any &
+any::operator= (const T &value)
+{
+ any (value).swap (*this);
+ return *this;
+}
+
+/// Test if the any object is empty.
+inline
+bool
+any::empty (void) const
+{
+ return !holder_;
+}
+
+/// Return the std::type_info of the contained object.
+inline
+const std::type_info &
+any::type (void) const
+{
+ return holder_ ? holder_->type () : typeid (void);
+}
+
+/// Destructor.
+inline
+any::AbstractHolder::~AbstractHolder (void)
+{
+}
+
+template<typename T>
+any::Holder<T>::Holder (const T &value)
+ : value_ (value)
+{
+}
+
+template<typename T>
+const std::type_info &
+any::Holder<T>::type (void) const
+{
+ return typeid (T);
+}
+
+template<typename T>
+any::AbstractHolder *
+any::Holder<T>::clone (void) const
+{
+ return new Holder (value_);
+}
+
+template<typename T>
+std::ostream &
+any::Holder<T>::print (std::ostream &os) const
+{
+ return os << value_;
+}
+
+/// Return a pointer to the contained object or 0 on faillure.
+template<typename T>
+T *
+any_cast (any *rhs)
+{
+ return rhs && rhs->type () == typeid (T)
+ ? &static_cast<any::Holder<T> *> (rhs->holder_)->value_
+ : 0;
+}
+
+/// Return a const pointer to the contained object or 0 on faillure.
+template<typename T>
+const T *
+any_cast (const any *rhs)
+{
+ return any_cast<T> (const_cast<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)
+{
+ const T *value = any_cast<T> (&rhs);
+ if (!value)
+ throw bad_any_cast ();
+ return *value;
+}
+
+/// Print the contained object.
+inline
+std::ostream &
+operator<< (std::ostream &os, const any &rhs)
+{
+ return rhs.holder_->print (os);
+}
+