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#ifndef any_tcc
#define any_tcc
// any.tcc
// 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 "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 (typeid (T), rhs.type ());
    return *value;
}

/// Constructor.
inline
bad_any_cast::bad_any_cast (const std::type_info &from,
			    const std::type_info &to)
{
    what_ = "illegal conversion from \'";
    what_ += from.name ();
    what_ += "\' to \'";
    what_ += to.name ();
    what_ += "\'";
}

/// Print the contained object.
inline
std::ostream &
operator<< (std::ostream &os, const any &rhs)
{
    return rhs.holder_->print (os);
}

#endif // any_tcc